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Active Line: 4

[V4+ Styles]
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[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Comment: 0,0:00:00.50,0:00:05.85,1080P-src-hans-sans-medi-60,,0,0,0,,注释
Dialogue: 0,0:00:00.50,0:00:05.85,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}翻译，压制：旋火\N视频来源：youtu.be/CUfOnwSLWxY\N原视频发布日期：20191219
Dialogue: 0,0:00:00.50,0:00:02.95,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}{\a7}注：Everyday Astronaut意译为每日宇航员
Dialogue: 0,0:00:02.95,0:00:05.85,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}{\a7}注：Rocket Lab意译为火箭实验室
Dialogue: 0,0:00:06.78,0:00:09.24,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：MARS = Mid-Atlantic Regional Spaceport
Dialogue: 0,0:00:11.55,0:00:14.67,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}{\s1}运用自如{\s0}
Dialogue: 0,0:02:43.07,0:02:48.34,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：华纳的动画Wile E. Coyote and the Road Runner(威利狼与哔哔鸟)
Dialogue: 0,0:02:59.97,0:03:04.14,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：av78382556
Dialogue: 0,0:04:00.52,0:04:03.11,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：电子和原子梗
Dialogue: 0,0:04:41.02,0:04:49.27,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：{\fs50}www.ulalaunch.com/docs/default-source/evolution/partial-rocket-reuse-using-mid-air-recovery-2008-7874.pdf
Dialogue: 0,0:04:51.62,0:04:57.74,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：1959-1972年美国战略侦察卫星任务，再入之后，搭载胶卷的卫星返回舱通过固定翼飞机在空中回收
Dialogue: 0,0:06:16.91,0:06:20.27,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：Rutherford是电子火箭一二级的发动机
Dialogue: 0,0:06:22.01,0:06:32.36,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：TEA-TAB是化学点火燃料，但是不代表不能多次点火，猎鹰9号使用的就是TEA-TAB
Dialogue: 0,0:06:32.36,0:06:35.35,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：详见{\fs40}space.stackexchange.com/questions/13953/how-do-the-falcon-9-engines-re-ignite
Dialogue: 0,0:06:44.86,0:06:54.56,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：kick stage是电子火箭的三级部分(可选分级)，或者说上面级，可以翻译成 {\i1}踢一脚级{\i0}
Dialogue: 0,0:07:02.24,0:07:06.93,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：Curie(居里)是kick stage的发动机
Dialogue: 0,0:07:32.74,0:07:39.31,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：指20191111 starlink mission av75397301 (60+4):55 或 youtu.be/pIDuv0Ta0XQ?t=3599
Dialogue: 0,0:09:07.06,0:09:13.26,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：专用相对拼车而言，譬如相对猎鹰9号的拼车任务SmallSat Rideshare Program
Dialogue: 0,0:12:04.60,0:12:09.73,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：可以参考flight club提供的电子火箭速度时间曲线 {\fs40}flightclub.io/result/2d?id=106ddf97-8dc2-4573-a022-ad3305f89cee
Dialogue: 0,0:14:15.75,0:14:17.64,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：20181102发布的视频 youtu.be/Nj9BncsgvuQ?t=2371
Dialogue: 0,0:16:08.99,0:16:13.89,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：关于喷注器形状，可以参考 youtu.be/aa4ATJGRqA0
Dialogue: 0,0:16:37.07,0:16:40.49,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：RCS = Reaction control system(反推力系统)，用于调整航天器姿态的小推力反推系统
Dialogue: 0,0:17:40.38,0:17:45.98,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：一级火箭分离时，仍有垂直向上的分速度，所以仍未到达最高点，是分离后才到达
Dialogue: 0,0:18:00.35,0:18:04.47,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：对液体燃料火箭而言，失重状态下二次点火前需要防止燃料飞溅
Dialogue: 0,0:18:04.47,0:18:08.54,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：否则燃料输送可能出现问题\N对于猎鹰9火箭而言似乎是使用防溅板来解决问题{\fs40}youtu.be/mVAGoWJuDKk
Dialogue: 0,0:18:08.54,0:18:10.81,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：GNC = Guidance, Navigation and Control (应该是)
Dialogue: 0,0:20:22.25,0:20:30.14,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：第11次飞行直播 {\fs40}youtu.be/af-PplDIkbc?t=1113 {\r}(吐槽一下av85905439来源有问题打不开然后音画还不同步)
Dialogue: 0,0:22:05.14,0:22:10.40,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：类似欧洲版猎鹰9 RETALT(反推辅助降落技术) www.retalt.eu/project/ 但实际上和猎鹰9一样，估计都是亚音速段起作用的
Dialogue: 0,0:22:10.40,0:22:13.74,1080P-src-hans-sans-medi-60,,0,0,0,,{\blur4}注：电子不需要亚音速段的控制，因为降落伞和减速气球足够了
Comment: 0,0:24:12.83,0:24:14.65,1080P-src-hans-sans-Bold-50,,0,0,0,,结尾
Dialogue: 0,0:24:12.83,0:24:14.65,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Isn't Peter just awesome?
Dialogue: 0,0:24:14.65,0:24:16.95,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Thanks to the folks at Rocket Lab for giving me some time
Dialogue: 0,0:24:16.95,0:24:18.98,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}with Peter and letting me pick his brain.
Dialogue: 0,0:24:18.98,0:24:20.78,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}That stuff is just super fun to me.
Dialogue: 0,0:24:20.78,0:24:23.56,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And, I owe an even bigger thanks to my Patreon supporters
Dialogue: 0,0:24:23.56,0:24:25.52,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}for helping me be able to get myself
Dialogue: 0,0:24:25.52,0:24:27.59,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and my camera guy, Michael, out there to be able
Dialogue: 0,0:24:27.59,0:24:29.03,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}to shoot this kind of awesome stuff.
Dialogue: 0,0:24:29.03,0:24:31.40,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}If you want to help me continue to do what I do,
Dialogue: 0,0:24:31.40,0:24:33.18,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}please consider becoming a Patreon supporter
Dialogue: 0,0:24:33.18,0:24:36.39,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}by going to patreon.com/everydayastronaut.
Dialogue: 0,0:24:36.39,0:24:37.78,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And, while you're online, be sure and check out
Dialogue: 0,0:24:37.78,0:24:41.41,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}everydayastronaut.com/shop for limited edition merch.
Dialogue: 0,0:24:41.41,0:24:44.45,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Now, do notice the merchandise is getting awesome.
Dialogue: 0,0:24:44.45,0:24:46.79,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}We have, you know, they're all hand-screen printed,
Dialogue: 0,0:24:46.79,0:24:50.06,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}hand-sewn on patches, custom neck labels,
Dialogue: 0,0:24:50.06,0:24:52.65,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}all these really cool things, and these awesome designs
Dialogue: 0,0:24:52.65,0:24:54.12,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}are limited run, so if you like something,
Dialogue: 0,0:24:54.12,0:24:55.35,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you better grab it now, because there's
Dialogue: 0,0:24:55.35,0:24:57.72,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}a good chance it won't be there next time you click
Dialogue: 0,0:24:57.72,0:25:00.80,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}on the website, and I guess you can even grab
Dialogue: 0,0:25:00.80,0:25:03.51,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}what's apparently one of Elon Musk's favorite shirts,
Dialogue: 0,0:25:03.51,0:25:06.12,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}the Full Flow Staged Combustion Cycle shirt.
Dialogue: 0,0:25:06.12,0:25:09.74,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}We also have that as a hoodie version as well,
Dialogue: 0,0:25:09.74,0:25:11.35,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}just in time for the cold weather.
Dialogue: 0,0:25:11.35,0:25:12.97,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, get in there, while you can,
Dialogue: 0,0:25:12.97,0:25:14.54,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and get some awesome merchandise for yourself.
Dialogue: 0,0:25:14.54,0:25:17.20,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}That's everydayastronaut.com/shop.
Dialogue: 0,0:25:17.20,0:25:19.40,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Thanks everybody, that's gonna do it for me.
Dialogue: 0,0:25:19.40,0:25:21.70,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I'm Tim Dodd, The Everyday Astronaut.
Dialogue: 0,0:25:21.70,0:25:24.41,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Bringing space down to earth, for everyday people.
Dialogue: 0,0:25:26.87,0:25:29.45,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}(upbeat music)
Comment: 0,0:00:00.50,0:00:02.95,1080P-src-hans-sans-Bold-50,,0,0,0,,英文字幕
Dialogue: 0,0:00:00.50,0:00:02.95,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Hi, it's me, Tim Dodd, The Everyday Astronaut.
Dialogue: 0,0:00:02.95,0:00:05.85,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I am here at Rocket Labs brand new launch facility
Dialogue: 0,0:00:05.85,0:00:06.78,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}in Wallops, Virginia.
Dialogue: 0,0:00:06.78,0:00:09.24,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}This is Mars Pad 0C,
Dialogue: 0,0:00:09.56,0:00:11.55,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and this will allow Rocket Lab to launch their
Dialogue: 0,0:00:11.55,0:00:14.67,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}awesome little electron rocket from the United States.
Dialogue: 0,0:00:14.67,0:00:17.08,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, right now they only have launch complex one
Dialogue: 0,0:00:17.08,0:00:19.87,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}in New Zealand, this is launch complex two,
Dialogue: 0,0:00:19.87,0:00:21.77,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and I still have a lot of questions,
Dialogue: 0,0:00:21.77,0:00:25.33,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}especially, Rocket Lab is working on reusability for their
Dialogue: 0,0:00:25.33,0:00:27.47,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}awesome electron rocket, so I wonder if there's anyone
Dialogue: 0,0:00:27.47,0:00:31.26,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}that could, you know, answer a few more questions about
Dialogue: 0,0:00:31.26,0:00:32.11,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}that whole thing.
Dialogue: 0,0:00:33.61,0:00:35.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You mind if we talk up here...
Dialogue: 0,0:00:38.06,0:00:39.28,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}on your launchpad?
Dialogue: 0,0:00:39.28,0:00:40.11,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- No!
Dialogue: 0,0:00:40.11,0:00:41.01,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}(Tim laughing)
Dialogue: 0,0:00:41.01,0:00:43.11,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So I guess let's talk to someone that knows
Dialogue: 0,0:00:43.11,0:00:45.24,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}a lot about everything Rocket Lab.
Dialogue: 0,0:00:47.01,0:00:48.31,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Don't fall in the pit, don't fall in the pit
Dialogue: 0,0:00:48.31,0:00:49.99,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}don't fall in the pit.
Dialogue: 0,0:00:49.99,0:00:50.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Hey Peter!
Dialogue: 0,0:00:50.82,0:00:51.65,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Hey Tim! - How are ya?
Dialogue: 0,0:00:51.66,0:00:52.49,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Good to see you again.
Dialogue: 0,0:00:52.49,0:00:53.32,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- You freezing your butt off out here?
Dialogue: 0,0:00:53.32,0:00:54.36,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yes. (Tim laughs)
Dialogue: 0,0:00:54.36,0:00:56.50,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Well, it's a good place to end the year though!
Dialogue: 0,0:00:56.50,0:00:57.40,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}We're almost 2020! - It is a wonderful
Dialogue: 0,0:00:57.40,0:00:58.33,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}place, yep.
Dialogue: 0,0:00:58.33,0:01:00.49,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And, you guys had an unbelievable year.
Dialogue: 0,0:01:00.49,0:01:03.16,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, I'm super proud of the team for 2019.
Dialogue: 0,0:01:03.16,0:01:06.72,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I think we can end up this year with a smile on their face.
Dialogue: 0,0:01:06.72,0:01:09.64,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, so you ended up with six launches right?
Dialogue: 0,0:01:09.64,0:01:10.47,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yup.
Dialogue: 0,0:01:10.47,0:01:13.69,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And, you ended up with two launchpads now online?
Dialogue: 0,0:01:13.69,0:01:14.52,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yup.
Dialogue: 0,0:01:14.52,0:01:18.26,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And you, ended up working on recoverability?
Dialogue: 0,0:01:18.26,0:01:22.70,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, now, we achieved a pretty decent milestone with recoverability, actually.
Dialogue: 0,0:01:22.70,0:01:24.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}It was way better than we expected.
Dialogue: 0,0:01:24.89,0:01:26.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- As you know, that's what I want to start on,
Dialogue: 0,0:01:26.90,0:01:28.52,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}'cause that's really exciting.
Dialogue: 0,0:01:28.52,0:01:33.23,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, you're sitting back here, mister, I don't know,
Dialogue: 0,0:01:33.23,0:01:35.14,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}probably not gonna try, recoverability
Dialogue: 0,0:01:35.14,0:01:36.55,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}doesn't have margins in it.
Dialogue: 0,0:01:36.55,0:01:38.69,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}First off, tell me what kind of closed for you
Dialogue: 0,0:01:38.69,0:01:41.41,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}on that concept that maybe there is room,
Dialogue: 0,0:01:41.41,0:01:42.77,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}maybe it's worth it.
Dialogue: 0,0:01:42.77,0:01:44.14,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Just run me through your thought process there.
Dialogue: 0,0:01:44.14,0:01:46.77,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So, small launch vehicles are notoriously difficult, right?
Dialogue: 0,0:01:46.77,0:01:49.80,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}'Cause the margin on a small launch vehicle is so tight.
Dialogue: 0,0:01:49.80,0:01:53.25,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}When you've only got 150 kilograms of payload to play with,
Dialogue: 0,0:01:53.25,0:01:57.72,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}adding 100 kilograms of parachutes, it's just very difficult to trade.
Dialogue: 0,0:01:57.72,0:02:02.10,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So, what really got me thinking is I started to look at the data
Dialogue: 0,0:02:02.10,0:02:05.49,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and started to see how well stage one was surviving.
Dialogue: 0,0:02:05.49,0:02:10.28,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}We got good measurements during ascent of the environments, and really,
Dialogue: 0,0:02:10.28,0:02:12.94,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I started understanding everything that was going on.
Dialogue: 0,0:02:12.94,0:02:18.14,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And then also, trying to increase launch cadence at the same time,
Dialogue: 0,0:02:18.14,0:02:20.59,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and steering out into a factory
Dialogue: 0,0:02:20.59,0:02:23.08,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}where we knew we were going to have to double the size of this factory,
Dialogue: 0,0:02:23.08,0:02:25.09,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and just keep on building more and more machines,
Dialogue: 0,0:02:25.09,0:02:27.29,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and automating more and more and more,
Dialogue: 0,0:02:27.29,0:02:33.48,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and it just sort of became obvious, well, the data doesn't say that it's insane,
Dialogue: 0,0:02:33.48,0:02:36.83,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}it says it's difficult, but we're not breaking any laws of physics here.
Dialogue: 0,0:02:36.83,0:02:40.43,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So, yeah, I formed a small team within the company
Dialogue: 0,0:02:40.43,0:02:43.07,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and we started to go after it.
Dialogue: 0,0:02:43.07,0:02:48.34,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Do you have, just a chalkboard full of Wile E. Coyote style, what's going to work for us?
Dialogue: 0,0:02:48.34,0:02:51.15,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, I mean there was plenty of whiteboard sessions, that's for sure.
Dialogue: 0,0:02:52.06,0:02:56.51,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Share with me, one other one, before you landed on, was there even something close,
Dialogue: 0,0:02:56.51,0:02:59.97,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}another contender before you landed on trying to do the air recovery?
Dialogue: 0,0:02:59.97,0:03:04.14,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, I mean we looked at landing it in a net
Dialogue: 0,0:03:04.14,0:03:06.21,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}not dissimilar to what SpaceX does with experience.
Dialogue: 0,0:03:06.21,0:03:08.42,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Obviously, we looked at propulsive re-entry,
Dialogue: 0,0:03:08.42,0:03:11.72,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but that was, you know, you only get half a napkin filled out
Dialogue: 0,0:03:11.72,0:03:13.63,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}before you realize that's just not going to work.
Dialogue: 0,0:03:13.63,0:03:14.54,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}(Tim laughing)
Dialogue: 0,0:03:14.54,0:03:21.50,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And then, yeah, there was all sort of all different concepts from the team, you know,
Dialogue: 0,0:03:21.50,0:03:24.48,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}giant drones, and all sorts of stuff, yeah.
Dialogue: 0,0:03:24.48,0:03:28.66,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, okay, I guess we're going to pop right into that, that's actually,
Dialogue: 0,0:03:28.66,0:03:31.74,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I do a podcast with some guys, it's called "Our Ludicrous Future",
Dialogue: 0,0:03:31.74,0:03:34.51,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and each week, we take people's questions of
Dialogue: 0,0:03:34.51,0:03:35.57,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}"Why don't they just..."
Dialogue: 0,0:03:35.57,0:03:36.40,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, yeah, right.
Dialogue: 0,0:03:36.40,0:03:39.32,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And that was a good one, it was "Why don't they just use a giant drone,
Dialogue: 0,0:03:39.32,0:03:40.61,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you guys already have batteries,
Dialogue: 0,0:03:40.61,0:03:44.99,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you have motors, and it could be cheaper than operating a helicopter,
Dialogue: 0,0:03:44.99,0:03:48.05,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you could even do four of them that fly in unison",
Dialogue: 0,0:03:48.05,0:03:50.15,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}why didn't that end up working out?
Dialogue: 0,0:03:50.15,0:03:53.65,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Well, I mean, I'm trying to get my helicopter's license, so,
Dialogue: 0,0:03:53.65,0:03:57.78,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- (laughs) I know you are. using a helicopter is great.
Dialogue: 0,0:03:57.78,0:04:00.52,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Is this just you wanting to fly a helicopter more often?
Dialogue: 0,0:04:00.52,0:04:03.11,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- No, no, no, but there's a small atom of it.
Dialogue: 0,0:04:03.11,0:04:04.05,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}(Tim Laughing)
Dialogue: 0,0:04:04.05,0:04:07.85,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, no, I mean, many have recaptured with a helicopter, it's been done before.
Dialogue: 0,0:04:07.85,0:04:09.08,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And I know a lot of people look at that and
Dialogue: 0,0:04:09.08,0:04:12.31,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}they sort of, they say "Man that's super tricky"
Dialogue: 0,0:04:12.31,0:04:14.11,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and "How are they going to pull that off?"
Dialogue: 0,0:04:14.11,0:04:17.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but really that is, relatively academic,
Dialogue: 0,0:04:17.81,0:04:20.62,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}compared to actually re-entering the stage and getting it through one bit.
Dialogue: 0,0:04:20.62,0:04:23.18,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Right, well, do you work with the company
Dialogue: 0,0:04:23.18,0:04:27.96,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}that was based out of, was it Scotland or England, that has the recovery system?
Dialogue: 0,0:04:27.96,0:04:28.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Really?
Dialogue: 0,0:04:28.89,0:04:29.78,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- No, no.
Dialogue: 0,0:04:29.78,0:04:31.85,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Okay, 'ccause, of course, everyone on the internet immediately saw
Dialogue: 0,0:04:31.85,0:04:33.94,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}what you guys are working on, and go "Well, this has already been done"
Dialogue: 0,0:04:33.94,0:04:38.94,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}here's a video of company recovering a, it was a mock-up booster with a parafoil.
Dialogue: 0,0:04:38.94,0:04:41.02,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, I mean it's been done.
Dialogue: 0,0:04:41.02,0:04:43.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Lockheed Martin did it, I think it was in the 90's,
Dialogue: 0,0:04:43.76,0:04:49.27,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}to try and recover some re-entered artifacts, so yeah.
Dialogue: 0,0:04:49.27,0:04:51.62,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I mean it's in, you know, if you go back far enough
Dialogue: 0,0:04:51.62,0:04:52.75,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you look at the Corona missions,
Dialogue: 0,0:04:52.75,0:04:54.67,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}all that was in a helicopter, it's still the same gig.
Dialogue: 0,0:04:54.67,0:04:55.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Right, same, yup.
Dialogue: 0,0:04:55.76,0:04:57.74,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Getting through re-entry popping a chute,
Dialogue: 0,0:04:57.74,0:04:59.05,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}swooping it up before it hits the water.
Dialogue: 0,0:04:59.05,0:05:00.28,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yup, that's pretty much it.
Dialogue: 0,0:05:00.28,0:05:01.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And, how much time do you have
Dialogue: 0,0:05:01.90,0:05:05.25,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}between when the parachutes deploy, and before it hits the ground?
Dialogue: 0,0:05:05.25,0:05:07.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, so that's the idea of the parafoil is we can steer it into the wind,
Dialogue: 0,0:05:07.89,0:05:10.15,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and maximize the hang-time there.
Dialogue: 0,0:05:10.15,0:05:11.63,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, you could have up to twenty minutes.
Dialogue: 0,0:05:11.63,0:05:15.28,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Really? So you could have multiple attempts with the helicopter.
Dialogue: 0,0:05:15.28,0:05:19.72,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, yup, and so we try and limit the descent rate to a maximum of 10 meters a second
Dialogue: 0,0:05:19.72,0:05:23.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so you know, you get a decent opportunity to go and scoop it.
Dialogue: 0,0:05:23.86,0:05:25.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Okay, that's pretty cool, so I guess,
Dialogue: 0,0:05:25.82,0:05:29.36,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}no autonomous drones in the near-time future?
Dialogue: 0,0:05:29.36,0:05:35.74,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- No, there was talk of autonomous ships at one point, but, no, no autonomous drones at this point.
Dialogue: 0,0:05:35.74,0:05:39.57,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Okay, so that's your "Why don't they just use (laughs) drones."
Dialogue: 0,0:05:39.57,0:05:40.92,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Peter likes flying a helicopter.
Dialogue: 0,0:05:40.92,0:05:43.56,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Because Peter loves flying helicopters, that's why.
Dialogue: 0,0:05:43.56,0:05:47.88,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}No, okay, so propulsive, that came up in a lot of discussions, people say,
Dialogue: 0,0:05:47.88,0:05:49.60,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}"Why don't they do propulsive re-entry?"
Dialogue: 0,0:05:49.60,0:05:52.22,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}The simple answer, most likely, is that you don't need it.
Dialogue: 0,0:05:52.22,0:05:54.91,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Your booster can survive, it survived the wall.
Dialogue: 0,0:05:54.91,0:05:55.79,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah it did survive the wall.
Dialogue: 0,0:05:55.79,0:05:57.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Without propulsive slowdown.
Dialogue: 0,0:05:57.86,0:05:59.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And not only did it survive the wall,
Dialogue: 0,0:06:00.76,0:06:04.55,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}it's the worst possible descent you could imagine,
Dialogue: 0,0:06:04.55,0:06:08.13,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}there was absolutely no deceleration device on it whatsoever,
Dialogue: 0,0:06:08.13,0:06:10.42,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so it was just coming in screamin' hot.
Dialogue: 0,0:06:10.42,0:06:12.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So, okay, a couple questions come out of that,
Dialogue: 0,0:06:12.82,0:06:15.01,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}sorry, I'm just going to keep digging through here, because...
Dialogue: 0,0:06:16.91,0:06:20.27,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Does your engine, the Rutherford, does it actually have re-light capability?
Dialogue: 0,0:06:22.01,0:06:28.80,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Well, I mean, we don't use TEA-TEB, we use an igniter torch, so yes it does.
Dialogue: 0,0:06:28.80,0:06:32.36,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, we don't actively use it, I mean there's a few things we'd need to do,
Dialogue: 0,0:06:32.36,0:06:35.35,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}we'd need to purge the chambers with some nitrogen and stuff,
Dialogue: 0,0:06:35.35,0:06:38.05,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but we don't actually use it on the launch vehicle,
Dialogue: 0,0:06:38.05,0:06:41.15,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but it's relatively trivial to make it relightable.
Dialogue: 0,0:06:41.15,0:06:44.03,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- But, you've never had missions or anything where you need a relight?
Dialogue: 0,0:06:44.03,0:06:44.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- No
Dialogue: 0,0:06:44.86,0:06:46.10,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And that's what the kick stage is for?
Dialogue: 0,0:06:46.10,0:06:47.32,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, well, the kick stage is beautiful,
Dialogue: 0,0:06:47.32,0:06:52.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because it's a right-sized propulsion system for trying to circulize
Dialogue: 0,0:06:52.89,0:06:54.56,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and insert really, really accurately.
Dialogue: 0,0:06:54.56,0:06:58.59,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}That's the trouble with doing kind of a second light on a stage two is that
Dialogue: 0,0:06:58.59,0:07:02.24,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you're only lit for a few seconds, and it's just a big thump.
Dialogue: 0,0:07:02.24,0:07:06.93,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Whereas the Curie burns for like 20 or 30 seconds and you just get exquisite accuracy.
Dialogue: 0,0:07:06.93,0:07:09.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, yeah, you have a long, it's such a low thresh,
Dialogue: 0,0:07:09.81,0:07:12.38,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}or, you can do a tiny little bit of burn, right?
Dialogue: 0,0:07:12.38,0:07:17.17,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I tell you, there is nothing more satisfying than when we would do the circularization burn on the trims,
Dialogue: 0,0:07:17.17,0:07:23.59,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}is you know, in mission control, we have the couple of lines, the target line, and then the ascent line,
Dialogue: 0,0:07:23.59,0:07:29.39,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and just watching those two lines just inch together and converge over 30 seconds is just incredibly satisfying,
Dialogue: 0,0:07:29.39,0:07:32.74,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}they just (buzzes), and they just pop, it's just beautiful.
Dialogue: 0,0:07:32.74,0:07:35.62,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- That is actually amazing, and there was a recent SpaceX mission where,
Dialogue: 0,0:07:35.62,0:07:39.31,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you know they have such an overpowered upper stage with their Merlin engine
Dialogue: 0,0:07:39.31,0:07:41.74,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}where they, I think they lit it (snaps) for like,
Dialogue: 0,0:07:41.74,0:07:44.17,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}it wasn't even, it was like a half second, or something.
Dialogue: 0,0:07:44.17,0:07:45.97,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}They were just like (explosion imitation).
Dialogue: 0,0:07:45.97,0:07:49.22,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}It's like wow, I can't imagine the startup transience
Dialogue: 0,0:07:49.22,0:07:51.75,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and all that stuff, just for that one, quick, little jolt.
Dialogue: 0,0:07:51.75,0:07:53.85,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And you guys are able to, with, when,
Dialogue: 0,0:07:53.85,0:07:56.83,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}now you upgraded, too, your Photon, and, do you still do,
Dialogue: 0,0:07:56.83,0:07:59.21,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}do you fly Photon and Curie separate,
Dialogue: 0,0:07:59.21,0:08:00.70,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}or is it all just Photon now?
Dialogue: 0,0:08:00.70,0:08:02.93,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, no, so, well it's a bit of a debate really.
Dialogue: 0,0:08:02.93,0:08:06.15,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, the kick stage is really just a Photon now,
Dialogue: 0,0:08:06.15,0:08:07.56,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but we have different variants, so we have a
Dialogue: 0,0:08:07.56,0:08:10.58,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}mono-propellant kick stage and a bi-propellant kick-stage.
Dialogue: 0,0:08:10.58,0:08:13.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, you know, for missions that don't require the extra performance,
Dialogue: 0,0:08:13.86,0:08:15.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}we just prefer to run mono-propellant,
Dialogue: 0,0:08:15.82,0:08:19.04,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because, you just gotta open a valve, that's it.
Dialogue: 0,0:08:19.04,0:08:21.31,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, for higher performing missions, we run the bi-propellant.
Dialogue: 0,0:08:21.31,0:08:25.11,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- What's the specific impulse difference between mono-prop and dual-prop?
Dialogue: 0,0:08:25.11,0:08:29.20,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- It's quite big, you know, it would be probably 50 seconds, 60 seconds, something like that,
Dialogue: 0,0:08:29.20,0:08:30.30,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so it's pretty decent.
Dialogue: 0,0:08:30.30,0:08:33.57,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And, how much delta V does that afford you when you go to the dual-prop?
Dialogue: 0,0:08:34.42,0:08:37.13,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I can't remember the exact number,
Dialogue: 0,0:08:37.13,0:08:41.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because it depends on what propellant tank combination we're running as well.
Dialogue: 0,0:08:41.90,0:08:46.99,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, we've got quite a lot of flexibility in that upper stage to really change it up depending on missions.
Dialogue: 0,0:08:46.99,0:08:51.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I mean, flight 10, we flew to a high orbit to 400 Ks,
Dialogue: 0,0:08:51.90,0:08:55.30,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and then, we did a re-light, and lowered, and then deployed some more.
Dialogue: 0,0:08:55.30,0:08:57.24,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, you know, more and more of these missions,
Dialogue: 0,0:08:57.24,0:09:00.06,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}we're finding, we do multiple re-lights, and change orbits and stuff.
Dialogue: 0,0:09:00.06,0:09:04.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, it's a value to the customer to be able to go directly to where they need to go,
Dialogue: 0,0:09:04.81,0:09:07.06,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}they don't have to have their own propulsion and do all that stuff.
Dialogue: 0,0:09:07.06,0:09:09.10,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Well that's the whole point of dedicated rocket, right?
Dialogue: 0,0:09:09.10,0:09:13.26,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I mean, if you can't do that, then, it's a ride share.
Dialogue: 0,0:09:13.26,0:09:14.75,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, yeah, exactly.
Dialogue: 0,0:09:14.75,0:09:18.77,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, do you guys still have a mission going out to the moon, is that correct?
Dialogue: 0,0:09:18.77,0:09:19.60,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah.
Dialogue: 0,0:09:19.60,0:09:25.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, is that, so how much of that is riding on the kick stage, does the kick stage do the full TLI?
Dialogue: 0,0:09:25.76,0:09:26.59,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, it's Photon.
Dialogue: 0,0:09:26.59,0:09:27.72,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Really? - Yeah, we'll basically
Dialogue: 0,0:09:27.72,0:09:29.27,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}just take a Photon to the moon.
Dialogue: 0,0:09:29.27,0:09:31.35,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Wow, it has that much Delta V kick?
Dialogue: 0,0:09:31.35,0:09:35.48,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, yeah, so, like I say we can configure it and change tank configurations, so,
Dialogue: 0,0:09:35.48,0:09:39.98,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you know, Photon to the moon is just basically a big tank on top of the payload deck.
Dialogue: 0,0:09:39.98,0:09:44.41,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, everything is already there, all the guidance, comms, and everything, it's just there.
Dialogue: 0,0:09:44.41,0:09:50.93,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And, you know, we architected the Curie engine in a way that it could burn for a very long time.
Dialogue: 0,0:09:50.93,0:09:53.32,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, yeah, it's not--
Dialogue: 0,0:09:53.32,0:09:55.87,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Would it take multiple, I'd assume it'd take multiple
Dialogue: 0,0:09:55.87,0:09:56.85,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, yeah you want
Dialogue: 0,0:09:56.85,0:09:59.21,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- insertion burns? - to optimize it.
Dialogue: 0,0:09:59.21,0:10:00.66,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Direct inject's expensive, but--
Dialogue: 0,0:10:00.66,0:10:03.15,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- That will be really exciting to see that.
Dialogue: 0,0:10:03.15,0:10:04.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I mean, just thinking that a rocket this size,
Dialogue: 0,0:10:04.89,0:10:08.44,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}a relatively small rocket will be able to take a payload to the moon I mean--
Dialogue: 0,0:10:08.44,0:10:14.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, and I think it's exciting on a lot of fronts, because it opens up so many different opportunities.
Dialogue: 0,0:10:14.86,0:10:19.77,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, TLI injection is great, but we can also go to GEO we can do a heliocentric,
Dialogue: 0,0:10:19.77,0:10:22.98,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but there's all sorts of stuff you can do, which are really exciting.
Dialogue: 0,0:10:22.98,0:10:24.61,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I didn't even think about GEO.
Dialogue: 0,0:10:24.63,0:10:28.02,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I'm sure there's never been a rocket this small putting anything in geostationary orbit, right?
Dialogue: 0,0:10:28.02,0:10:28.97,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- No, no I'm sure.
Dialogue: 0,0:10:28.97,0:10:30.48,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I mean, not even close.
Dialogue: 0,0:10:30.48,0:10:32.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, that's pretty amazing.
Dialogue: 0,0:10:32.46,0:10:36.68,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}One of the things that everyone's, you know, definitely questioning is,
Dialogue: 0,0:10:36.68,0:10:40.21,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}some of the hardware that's required to do some of your recovery stuff,
Dialogue: 0,0:10:40.21,0:10:44.75,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}is that one of the reasons you also went dual-prop, is to make up for that delta V difference?
Dialogue: 0,0:10:44.75,0:10:49.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, I mean, wherever we, we're continually trying to improve the performance of electron
Dialogue: 0,0:10:49.46,0:10:55.32,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}to both gain margin and also offset the changes that we're making with recovery.
Dialogue: 0,0:10:55.32,0:10:59.05,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, like I said before, if a mission doesn't require it,
Dialogue: 0,0:10:59.05,0:11:01.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}then we generally won't put it on, we'll just run mono-propellant.
Dialogue: 0,0:11:01.76,0:11:03.09,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, so overall,
Dialogue: 0,0:11:03.09,0:11:10.16,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}have you done any changes to batteries or optimization of the engines between flight one and 10 now that have--
Dialogue: 0,0:11:10.16,0:11:15.50,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- It's amazing really, remarkably few systems have really changed.
Dialogue: 0,0:11:15.50,0:11:20.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, we've understood the systems better, so we've been able to pull back margin,
Dialogue: 0,0:11:20.86,0:11:26.13,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but there's been no kind of major re-architect of really any system.
Dialogue: 0,0:11:26.13,0:11:30.38,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, we'll continue this year, 2020 we'll continue to kind of tweak,
Dialogue: 0,0:11:30.38,0:11:32.84,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and make a few improvements along the way,
Dialogue: 0,0:11:32.84,0:11:37.29,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because we will be adding a bit of mass on stage one to recover,
Dialogue: 0,0:11:37.33,0:11:41.08,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so we've got a pretty simple road map, there, to add performance to the vehicle.
Dialogue: 0,0:11:41.08,0:11:45.11,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- If you don't mind me asking, how much mass is added for first stage recoverability?
Dialogue: 0,0:11:45.11,0:11:52.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- It really depends on how successful the ballistic descents are with parachutes.
Dialogue: 0,0:11:54.40,0:11:59.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I mean, I would imagine probably no more than 150 kgs on stage 1, but you have to remember the ratios.
Dialogue: 0,0:11:59.86,0:12:02.19,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yes, what was it, about 4:1?
Dialogue: 0,0:12:02.19,0:12:04.60,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Actually, on electron it's much, much more than that.
Dialogue: 0,0:12:04.60,0:12:09.73,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}'Cause stage 2 does so much of the work, so it's probably more like 8:1 on a stage 1.
Dialogue: 0,0:12:09.73,0:12:10.28,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Really?
Dialogue: 0,0:12:10.28,0:12:13.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, so we can carry a lot of mass down there.
Dialogue: 0,0:12:13.86,0:12:16.47,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I should also explain for those watching and listening,
Dialogue: 0,0:12:16.47,0:12:18.71,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}that means, basically, they can add a bunch of weight to the first stage
Dialogue: 0,0:12:18.71,0:12:21.12,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and it doesn't take nearly as much payload penalty as it does
Dialogue: 0,0:12:21.13,0:12:23.55,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}if you were to stick that weight on the upper stage.
Dialogue: 0,0:12:23.55,0:12:26.24,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, you add eight kilograms to the first stage,
Dialogue: 0,0:12:26.24,0:12:29.55,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}it'll only detract about one kilogram from your payload capability.
Dialogue: 0,0:12:29.55,0:12:35.48,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, I guess, that's another question, then, is, "Has there ever been any thoughts?"
Dialogue: 0,0:12:36.36,0:12:41.33,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Okay, I'm going to ask this first, how much specific impulse is your upper stage?
Dialogue: 0,0:12:41.33,0:12:43.16,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So the Rutherford, or--
Dialogue: 0,0:12:43.16,0:12:46.32,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- The Rutherford, yeah, sorry, the Rutherford upper stage.
Dialogue: 0,0:12:46.32,0:12:48.49,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, so, it's around about 342
Dialogue: 0,0:12:48.49,0:12:49.84,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I think, 'round about there.
Dialogue: 0,0:12:49.84,0:12:52.23,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}It's high performance, it's a screaming, little engine.
Dialogue: 0,0:12:52.23,0:12:56.60,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Yeah, it's about 97% seastar efficient, 97, 98.
Dialogue: 0,0:12:57.17,0:12:58.57,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}It's a screamer.
Dialogue: 0,0:12:58.57,0:13:03.44,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So, has there ever been any thoughts of going with a different propellant on the upper stage,
Dialogue: 0,0:13:03.44,0:13:05.84,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}or the first stage, like methane, have you guys looked into methane?
Dialogue: 0,0:13:05.84,0:13:08.25,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, not really. I mean, I...
Dialogue: 0,0:13:09.45,0:13:11.33,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}{\a6}I love Kero.
Dialogue: 0,0:13:11.33,0:13:12.94,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}{\a6}I mean I know there's a lot of talk about,
Dialogue: 0,0:13:12.94,0:13:16.12,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}"Well, it's easier to have two cryogenic propellants than one cryogenic and one not."
Dialogue: 0,0:13:17.01,0:13:22.08,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Well, I prefer not to deal with another cryogenic propellant, personally, especially one that's a bit flamey.
Dialogue: 0,0:13:22.08,0:13:23.31,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I mean if you've seen...
Dialogue: 0,0:13:25.34,0:13:28.45,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}some of the stuff from SpaceX recently,
Dialogue: 0,0:13:28.45,0:13:30.65,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}that methane sure likes to go on fire a lot.
Dialogue: 0,0:13:31.60,0:13:34.09,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Kerosene is much different, like that.
Dialogue: 0,0:13:34.12,0:13:37.29,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, I mean, there's probably some performance upgrades there,
Dialogue: 0,0:13:37.34,0:13:42.36,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but just the handleability of kerosene and just the ease of it.
Dialogue: 0,0:13:43.58,0:13:47.55,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}What we're trying to do here is just churn launch out,
Dialogue: 0,0:13:47.55,0:13:52.08,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so, you know, adding systems that add complexity is not really a gig.
Dialogue: 0,0:13:52.08,0:13:56.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I was gonna say that is almost like your calling card, it's like, keep it as simple as possible.
Dialogue: 0,0:13:56.89,0:14:00.23,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Everyone wants to, and this is, again very much an armchair engineer thing,
Dialogue: 0,0:14:00.23,0:14:02.01,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}there's very much fans of aerospace going like
Dialogue: 0,0:14:02.01,0:14:05.87,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}"But, they could probably launch 400 kilograms if they switched to this, and this, and this!"
Dialogue: 0,0:14:05.87,0:14:07.66,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}It's like, what's the trade-off benefit of that?
Dialogue: 0,0:14:07.66,0:14:12.19,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Are you actually going to increase your amount of customers, payload opportunities,
Dialogue: 0,0:14:12.27,0:14:15.75,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}XYZ for all these new complications, all this new R&D.
Dialogue: 0,0:14:15.75,0:14:17.64,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I remember we spoke about aerospikes last time
Dialogue: 0,0:14:17.64,0:14:21.88,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I talked to you, and that's one of the perfect example of
Dialogue: 0,0:14:21.88,0:14:26.52,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}"maybe it might help in some things, or improve certain situations, but by the end of the day,
Dialogue: 0,0:14:26.52,0:14:28.26,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}even if you get it working perfectly,
Dialogue: 0,0:14:28.26,0:14:31.93,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}how much did you spend to get it working, and is it worth it in the long run?"
Dialogue: 0,0:14:31.93,0:14:32.58,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, that's exactly right.
Dialogue: 0,0:14:32.58,0:14:35.02,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- You might end up right back on page one, you know?
Dialogue: 0,0:14:35.02,0:14:37.70,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Okay, so optimizing the upper stage.
Dialogue: 0,0:14:37.70,0:14:42.38,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, probably not going to liquid methane or any other cryogenic fuels, or changing up systems.
Dialogue: 0,0:14:42.38,0:14:44.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I've always had a question, two questions about upper stage.
Dialogue: 0,0:14:44.76,0:14:45.65,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Okay.
Dialogue: 0,0:14:45.65,0:14:47.14,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- You ditch both batteries at the same time.
Dialogue: 0,0:14:47.14,0:14:47.97,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Correct.
Dialogue: 0,0:14:47.98,0:14:49.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Is there a reason you don't stage them;
Dialogue: 0,0:14:49.82,0:14:51.43,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}one and then the other?
Dialogue: 0,0:14:51.43,0:14:55.45,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, I mean the, payload gained by doing that is relatively minor,
Dialogue: 0,0:14:55.45,0:15:00.03,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so the beauty of staging two at once is you don't introduce any torque offsets,
Dialogue: 0,0:15:00.03,0:15:01.45,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because they null each other out.
Dialogue: 0,0:15:01.45,0:15:02.01,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- One, right.
Dialogue: 0,0:15:02.01,0:15:04.61,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Whereas if you poke one off, then you sort of punch one way and then the other,
Dialogue: 0,0:15:04.62,0:15:08.41,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and look, the guidance will deal with that no problem at all,
Dialogue: 0,0:15:08.41,0:15:10.16,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you see the guidance when you punch both of them off,
Dialogue: 0,0:15:10.16,0:15:13.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}it just doesn't even know it's there, and same with the fairings.
Dialogue: 0,0:15:13.81,0:15:18.69,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, really that came about from day one trying to minimize risk.
Dialogue: 0,0:15:18.69,0:15:24.27,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And, yeah, for just a tiny amount of payload just don't introduce more risk.
Dialogue: 0,0:15:24.27,0:15:27.52,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, yup, again the whole "Don't introduce more risk."
Dialogue: 0,0:15:27.52,0:15:30.17,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Second stage has a bunch of sparks that always shoot out of the nozzle.
Dialogue: 0,0:15:30.17,0:15:31.49,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}What's that from again?
Dialogue: 0,0:15:31.49,0:15:34.78,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, so, the Rutherford engine is really high performance,
Dialogue: 0,0:15:34.78,0:15:38.17,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and what that actually is, it's quite funny, you see people talking,
Dialogue: 0,0:15:38.17,0:15:39.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}"Oh, they must've had a bladed nozzle"
Dialogue: 0,0:15:39.86,0:15:41.32,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}despite the fact that it's glowing bright red.
Dialogue: 0,0:15:41.32,0:15:44.30,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, no, they're little soot deposits.
Dialogue: 0,0:15:44.30,0:15:47.49,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, the soot deposits kind of build up on the injector face like stalactites,
Dialogue: 0,0:15:47.49,0:15:50.61,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and then they get to a certain size, and then break free,
Dialogue: 0,0:15:50.61,0:15:53.42,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and then that's the carbon entrained into the exhaust plane.
Dialogue: 0,0:15:53.42,0:15:54.25,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Really?
Dialogue: 0,0:15:54.26,0:15:55.66,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah.
Dialogue: 0,0:15:55.66,0:15:57.62,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So that's your soot of RP-1?
Dialogue: 0,0:15:57.62,0:15:58.45,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yup.
Dialogue: 0,0:15:58.45,0:16:01.05,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Wow, and shooting out as what looks like little sparks?
Dialogue: 0,0:16:01.05,0:16:02.06,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Little sparks, yeah.
Dialogue: 0,0:16:02.06,0:16:02.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Really?
Dialogue: 0,0:16:02.89,0:16:07.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, but that injector, the efficiency is, it's a good injector,
Dialogue: 0,0:16:07.81,0:16:08.99,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so it's really--
Dialogue: 0,0:16:08.99,0:16:13.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Are you guys doing on-face, like do you go coaxial, or what do you--
Dialogue: 0,0:16:13.89,0:16:14.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- It's a good injector.
Dialogue: 0,0:16:14.90,0:16:18.38,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- It's a good injector, (laughs) keeping it tight.
Dialogue: 0,0:16:18.38,0:16:19.21,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I love it.
Dialogue: 0,0:16:19.21,0:16:22.35,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Okay, so, we've talked about that, we talked about
Dialogue: 0,0:16:22.35,0:16:27.35,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}the injections, we talked about methane, sparky engines.
Dialogue: 0,0:16:27.45,0:16:30.39,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Okay, so, back to recoverability, we're going to wrap this all around.
Dialogue: 0,0:16:31.00,0:16:35.01,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You didn't have to do any aero-systems at all for your recoverability?
Dialogue: 0,0:16:35.01,0:16:37.07,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Not any aero-appendages,
Dialogue: 0,0:16:37.07,0:16:40.49,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but the whole stage was guided through RCS.
Dialogue: 0,0:16:40.49,0:16:42.07,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, a little Reaction Control Rocket motors.
Dialogue: 0,0:16:42.07,0:16:43.09,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Little tiny, they're cute.
Dialogue: 0,0:16:43.09,0:16:44.15,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, they're a little cute.
Dialogue: 0,0:16:44.15,0:16:45.39,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}They're little guys, yeah.
Dialogue: 0,0:16:45.39,0:16:48.22,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- But, that's enough control authority to keep you pointed in the right direction?
Dialogue: 0,0:16:48.22,0:16:50.55,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, so, it's really interesting,
Dialogue: 0,0:16:50.55,0:16:56.13,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you know, the kind of dynamic stability of the stage and the hypersonic regime is...
Dialogue: 0,0:16:57.22,0:17:00.95,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}It's when we get into the subsonic regime, then it wants to turn itself backwards,
Dialogue: 0,0:17:00.95,0:17:03.73,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but, during the hypersonic regime, it's actually quite stable.
Dialogue: 0,0:17:03.73,0:17:05.61,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Because of the engines being first, and--
Dialogue: 0,0:17:05.61,0:17:09.92,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- The engines and the batteries are all at the bottom, so all the mass is down there at the bottom.
Dialogue: 0,0:17:09.92,0:17:17.83,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, when we... about 5 seconds after second stage ignited,
Dialogue: 0,0:17:17.83,0:17:22.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}we started the kind of, maneuver, and the first maneuver was to do a flip-around,
Dialogue: 0,0:17:22.89,0:17:25.21,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and then align with the re-entry corridor.
Dialogue: 0,0:17:27.07,0:17:29.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}That was so good, too, because I had that on my screen as well,
Dialogue: 0,0:17:29.86,0:17:31.42,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I was watching that very carefully,
Dialogue: 0,0:17:31.42,0:17:33.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and you know, just watching those rates come down,
Dialogue: 0,0:17:33.90,0:17:35.42,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and they all just converged down to zero,
Dialogue: 0,0:17:35.42,0:17:36.38,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and I was like, "This is good!"
Dialogue: 0,0:17:36.38,0:17:39.21,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, this thing is just sitting bang on zero,
Dialogue: 0,0:17:39.21,0:17:40.38,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I thought "this is good."
Dialogue: 0,0:17:40.38,0:17:45.98,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And then, you know, we started to reach apogee, and then you see the, you know,
Dialogue: 0,0:17:45.98,0:17:48.50,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}the alignment vector come all good,
Dialogue: 0,0:17:48.50,0:17:50.65,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and then it just stayed all good,
Dialogue: 0,0:17:50.65,0:17:53.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and the little engines are firing away and doing their thing.
Dialogue: 0,0:17:53.81,0:17:56.75,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}We saw a bit of roll, but roll is the least damped axis,
Dialogue: 0,0:17:56.75,0:18:00.35,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so, you know, it's always hard to deal with roll.
Dialogue: 0,0:18:00.35,0:18:01.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And, you're not having to re-light engines,
Dialogue: 0,0:18:01.81,0:18:04.47,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so you don't have to worry about tank sloshes or anything.
Dialogue: 0,0:18:04.47,0:18:08.54,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Roll is good, a bit of barbecue roll, it's good so you don't cook things up.
Dialogue: 0,0:18:08.54,0:18:10.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, all credit to the GNC team,
Dialogue: 0,0:18:10.81,0:18:16.18,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}they were committing code at 2 o'clock in the morning for weeks and weeks, and tweaking,
Dialogue: 0,0:18:16.18,0:18:20.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and tweaking, and tweaking, so, those guys are just.
Dialogue: 0,0:18:20.46,0:18:21.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I mean, you see the accuracy of the vehicle,
Dialogue: 0,0:18:21.89,0:18:25.02,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and it's all down to those guys, they're just incredible, incredible.
Dialogue: 0,0:18:25.02,0:18:29.30,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- That's amazing, and what do those little RCS thrusters run on? Are they just--
Dialogue: 0,0:18:29.30,0:18:29.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Cold gas.
Dialogue: 0,0:18:29.82,0:18:30.58,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Cold gas, yup?
Dialogue: 0,0:18:30.58,0:18:32.12,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And that's enough to, I just,
Dialogue: 0,0:18:32.12,0:18:33.70,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}it's so hard to picture, they're so little.
Dialogue: 0,0:18:33.70,0:18:35.78,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, but, if you're in the corridor, it's good.
Dialogue: 0,0:18:35.78,0:18:38.30,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}It's only a problem if you get out of the corridor.
Dialogue: 0,0:18:38.30,0:18:39.63,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, the corridor is super narrow,
Dialogue: 0,0:18:39.63,0:18:41.19,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and if you kind of get out of corridor,
Dialogue: 0,0:18:41.19,0:18:43.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}then, that's when the plasma knives come back out,
Dialogue: 0,0:18:43.46,0:18:45.62,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and you just trip a shockwave boundary,
Dialogue: 0,0:18:45.62,0:18:47.36,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and just attach and you're done.
Dialogue: 0,0:18:47.36,0:18:50.94,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, if you can just sit in that nice little wake,
Dialogue: 0,0:18:50.94,0:18:54.64,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}with the big bell shock in front of you, then life's good.
Dialogue: 0,0:18:55.51,0:18:58.34,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- It's so unbelievable that we're talking about,
Dialogue: 0,0:19:00.17,0:19:03.05,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}that's a possibility now, you're just literally sending
Dialogue: 0,0:19:03.05,0:19:05.79,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}it back through the atmosphere, and it's coming in,
Dialogue: 0,0:19:05.79,0:19:07.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}there's parts of it that are as hot as the sun,
Dialogue: 0,0:19:07.90,0:19:08.77,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and they're able to survive.
Dialogue: 0,0:19:08.77,0:19:14.63,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And, did you have to beef up heat shield around your structure and stuff like that compared to previous flights?
Dialogue: 0,0:19:14.63,0:19:18.95,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Well I mean, the bottom of electron has quite a hefty heat shield as it is,
Dialogue: 0,0:19:18.95,0:19:20.54,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because of the multiple engines.
Dialogue: 0,0:19:20.54,0:19:21.99,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You have a lot of plume-plume interaction,
Dialogue: 0,0:19:21.99,0:19:27.37,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and then, because of that, you have a lot of recirculation flow, especially at certain mach numbers.
Dialogue: 0,0:19:27.37,0:19:30.21,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, the heat shield's pretty decent.
Dialogue: 0,0:19:30.21,0:19:32.29,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, on the re-entry we did see the heat shield collapse,
Dialogue: 0,0:19:32.29,0:19:36.02,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because the heat shield was never designed for those kind of dynamic pressures.
Dialogue: 0,0:19:36.02,0:19:39.19,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, you know, we were still receiving solid telemetry,
Dialogue: 0,0:19:39.19,0:19:43.57,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}the tanks were still pressed, systems still responding, telemetry right to impact,
Dialogue: 0,0:19:43.68,0:19:48.00,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and yeah we lost a couple of data acquisition modules,
Dialogue: 0,0:19:48.00,0:19:50.23,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and some sensors on the heat shield, but that was it.
Dialogue: 0,0:19:50.23,0:19:52.11,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Wow, so you think it was--
Dialogue: 0,0:19:52.11,0:19:53.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I think it was in good shape.
Dialogue: 0,0:19:53.46,0:19:53.78,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Wow.
Dialogue: 0,0:19:53.78,0:19:58.09,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, yeah, all the data would show that it was in remarkably good shape.
Dialogue: 0,0:19:58.09,0:20:02.18,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Really, so you're going to do that again, basically the same thing?
Dialogue: 0,0:20:02.18,0:20:04.33,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Well I didn't expect flight 10 to be so successful,
Dialogue: 0,0:20:04.33,0:20:09.23,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so I figured that with all of these things, you know, it's so hard to model and predict,
Dialogue: 0,0:20:09.23,0:20:11.98,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you get a little thing wrong and then you go and learn from it.
Dialogue: 0,0:20:11.98,0:20:15.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, I said to the team, "Right, let's do two in a row, and you know--"
Dialogue: 0,0:20:15.90,0:20:17.13,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Confirm everything.
Dialogue: 0,0:20:17.13,0:20:18.99,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah first one, we'll try our best,
Dialogue: 0,0:20:18.99,0:20:22.25,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}we'll probably learn a lot, and then we'll might get the second one right.
Dialogue: 0,0:20:22.25,0:20:30.14,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, the second time 'round, we'll hold onto the live feed a lot longer in the second time 'round.
Dialogue: 0,0:20:31.03,0:20:35.06,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}We actually intentionally shut the re-entry camera of the line down,
Dialogue: 0,0:20:35.06,0:20:39.01,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because we wanted to maintain the integrity of the data link.
Dialogue: 0,0:20:39.01,0:20:41.89,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Data is king; images are great, but data is king.
Dialogue: 0,0:20:41.89,0:20:45.95,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, we switched into a low-bandwidth mode, and shut down the camera.
Dialogue: 0,0:20:45.95,0:20:51.18,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But as it was, we maintained one megabit per second link all the way into impact,
Dialogue: 0,0:20:51.18,0:20:54.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so we'll be able to have good camera on the way in on the next one.
Dialogue: 0,0:20:54.82,0:20:57.69,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Wow, wow, so that's great news.
Dialogue: 0,0:20:57.69,0:21:03.86,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, as far as, so you're going to basically do repeating the thing you just did for flight 10 for flight 11,
Dialogue: 0,0:21:03.86,0:21:08.87,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}then, is that when you start attaching hypersonic balloons and parachutes on flight 12?
Dialogue: 0,0:21:08.87,0:21:16.77,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Not flight 12, I expected us to have to do a lot of work before we would move to the next stage.
Dialogue: 0,0:21:16.77,0:21:21.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}I think we're all in kind of, like, a child giddy mode right now,
Dialogue: 0,0:21:21.46,0:21:25.54,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}because we've got all the data we needed to proceed,
Dialogue: 0,0:21:25.54,0:21:27.93,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so we'll do another block upgrade,
Dialogue: 0,0:21:27.93,0:21:30.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and that'll probably take us a few flights.
Dialogue: 0,0:21:30.46,0:21:31.29,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Really?
Dialogue: 0,0:21:31.29,0:21:32.94,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And then we'll get some chutes on it.
Dialogue: 0,0:21:32.94,0:21:35.48,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Another, if you don't mind me asking,
Dialogue: 0,0:21:35.48,0:21:36.95,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}what changes are gonna happen?
Dialogue: 0,0:21:36.95,0:21:39.66,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Chutes, so we'll get some chutes on the next one.
Dialogue: 0,0:21:39.66,0:21:44.53,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And, you know, we'll still have more work to do with some decelerators,
Dialogue: 0,0:21:44.53,0:21:47.23,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}but what I really want to do is get it onto chutes,
Dialogue: 0,0:21:47.23,0:21:52.87,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}get it back in one piece, and in the ocean, go fish it out, and do some forensics on it.
Dialogue: 0,0:21:52.87,0:21:56.71,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}That, we'll learn the most by actually physically inspecting the hardware.
Dialogue: 0,0:21:56.71,0:22:02.81,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Of course, yeah, so as far as maybe having more aerodynamic decelerators...
Dialogue: 0,0:22:05.14,0:22:08.80,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}has there ever been any talk about having the inter-stage kind of, like, peel back
Dialogue: 0,0:22:08.80,0:22:10.40,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}like some kind of flower petal or anything?
Dialogue: 0,0:22:10.40,0:22:13.74,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, actually, the inter-stage is the wrong place you want it, believe it or not.
Dialogue: 0,0:22:13.74,0:22:14.57,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Really?
Dialogue: 0,0:22:14.57,0:22:19.41,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, it's not, hypersonic flow regime is a little bit different.
Dialogue: 0,0:22:19.41,0:22:22.33,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Is it because it ends up out so far outside of the wake it's just almost sitting,
Dialogue: 0,0:22:22.33,0:22:23.91,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and not doing any effect at all?
Dialogue: 0,0:22:23.91,0:22:25.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Exactly, because you're punching in,
Dialogue: 0,0:22:25.82,0:22:28.82,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}if you get your corridor right you've got a big kind of shadow,
Dialogue: 0,0:22:28.82,0:22:31.75,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so, you end up having to have something something super big to be effective.
Dialogue: 0,0:22:31.75,0:22:32.52,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- And that's just dumb.
Dialogue: 0,0:22:32.52,0:22:35.97,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So if you just, yeah, folded your inter-stage over like petals,
Dialogue: 0,0:22:35.97,0:22:38.62,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}there's just nothing there, there's no flow there.
Dialogue: 0,0:22:39.51,0:22:40.33,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- That makes sense,
Dialogue: 0,0:22:40.33,0:22:44.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}so, you could potentially have little, small air brakes pop out of your thrust structure or something?
Dialogue: 0,0:22:44.76,0:22:46.60,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, there's all sorts of different regimes.
Dialogue: 0,0:22:46.60,0:22:49.35,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Just expand that surface area out a little bit more.
Dialogue: 0,0:22:49.35,0:22:51.70,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I mean, different solutions for different courses.
Dialogue: 0,0:22:51.70,0:22:55.27,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}Maybe, if you had a shallower angle of attack, then those would be more effective.
Dialogue: 0,0:22:55.27,0:23:00.76,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}But, our whole concept here is to keep the stages cool and out of all the wind as possible.
Dialogue: 0,0:23:00.76,0:23:03.06,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So, as far as your flight corridor;
Dialogue: 0,0:23:03.06,0:23:08.09,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}is it better for you guys to come in longer, like, steeper like that, or straight down?
Dialogue: 0,0:23:08.09,0:23:09.23,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- It's really about angle of attack.
Dialogue: 0,0:23:09.23,0:23:11.74,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}That's what we want to try and maintain.
Dialogue: 0,0:23:11.74,0:23:15.00,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- So, what we can look forward to in 2020 would be:
Dialogue: 0,0:23:15.00,0:23:19.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}we're going to be looking for more recovery hardware, more flights.
Dialogue: 0,0:23:19.46,0:23:20.72,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Double the flight rate.
Dialogue: 0,0:23:20.72,0:23:21.55,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Double the flight rate,
Dialogue: 0,0:23:21.55,0:23:22.38,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}once a month? - Yup, yup.
Dialogue: 0,0:23:22.39,0:23:24.17,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Wow, launches out of here.
Dialogue: 0,0:23:24.17,0:23:25.34,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yup, launch out of here.
Dialogue: 0,0:23:25.34,0:23:26.17,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- (laughs) From right here.
Dialogue: 0,0:23:26.17,0:23:27.61,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Yeah, in this flying bucket.
Dialogue: 0,0:23:27.61,0:23:30.25,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- We won't want to be right here when that happens.
Dialogue: 0,0:23:30.25,0:23:32.99,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And then, anything else you guys are really looking forward to in 2020?
Dialogue: 0,0:23:32.99,0:23:34.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Photon.
Dialogue: 0,0:23:34.46,0:23:37.13,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, next year is a big year of the satellite, for us.
Dialogue: 0,0:23:37.13,0:23:41.77,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, I'm super pumped about Photon, I think that solves a lot of problems for the industry,
Dialogue: 0,0:23:41.77,0:23:45.80,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}and really lowers the boundaries and barriers for people to put stuff on orbit.
Dialogue: 0,0:23:45.80,0:23:49.90,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}You know, science, and education, commercial business,
Dialogue: 0,0:23:49.90,0:23:54.40,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}you know, it just removes all of the fuss, that's in space.
Dialogue: 0,0:23:55.20,0:23:58.48,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}So, that'll be a big year for us next year, the first Photon mission.
Dialogue: 0,0:23:58.89,0:24:03.99,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}And, we'll see, who knows, we might even skid something to the moon.
Dialogue: 0,0:24:03.99,0:24:04.46,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- I hope so.
Dialogue: 0,0:24:04.46,0:24:05.42,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- We'll see how it goes.
Dialogue: 0,0:24:05.42,0:24:07.44,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- That's amazing, well thank you so much for your time - Thanks, Tim!
Dialogue: 0,0:24:07.44,0:24:09.75,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- and congratulations on this wonderful new launch complex!
Dialogue: 0,0:24:09.75,0:24:12.00,1080P-src-hans-sans-Bold-50,,0,0,0,,{\blur4}- Thanks Tim, appreciate it. - Until next time.
Comment: 0,0:00:00.50,0:00:02.95,1080P-src-hans-sans-medi-75,,0,0,0,,中文字幕
Dialogue: 0,0:00:00.50,0:00:02.95,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}嗨 我是Everyday Astronaut的Tim Dodd
Dialogue: 0,0:00:02.95,0:00:05.85,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我在Rocket Lab的全新的发射设施
Dialogue: 0,0:00:05.85,0:00:06.78,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在Virginia的Wallops
Dialogue: 0,0:00:06.78,0:00:09.24,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这里是大西洋中部地区太空港0C号发射台
Dialogue: 0,0:00:09.56,0:00:11.55,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这座发射台将给Rocket Lab
Dialogue: 0,0:00:11.55,0:00:14.67,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}提供从美国发射小型运载火箭{\i1}电子{\i0}的能力
Dialogue: 0,0:00:14.67,0:00:17.08,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}要知道 现在他们只有一个(发射场)LC1
Dialogue: 0,0:00:17.08,0:00:19.87,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}LC1在新西兰 而这是LC2
Dialogue: 0,0:00:19.87,0:00:21.77,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}当然我还有很多问题想问
Dialogue: 0,0:00:21.77,0:00:25.33,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}尤其是 Rocket Lab正在研究电子火箭的可重复使用能力
Dialogue: 0,0:00:25.33,0:00:27.47,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以我不知道会不会有人
Dialogue: 0,0:00:27.47,0:00:31.26,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}来回答我几个问题
Dialogue: 0,0:00:31.26,0:00:32.11,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}特别是关于回收使用的问题
Dialogue: 0,0:00:33.61,0:00:35.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们在上面讨论如何
Dialogue: 0,0:00:38.06,0:00:39.28,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在你的发射台上？
Dialogue: 0,0:00:39.28,0:00:40.11,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}没问题
Dialogue: 0,0:00:41.01,0:00:43.11,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们跟这位懂行的聊聊吧
Dialogue: 0,0:00:43.11,0:00:45.24,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}关于火箭实验室的很多事情
Dialogue: 0,0:00:47.01,0:00:48.31,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}别掉坑里 别掉坑里
Dialogue: 0,0:00:48.31,0:00:49.99,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}别掉坑里
Dialogue: 0,0:00:49.99,0:00:50.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}嘿Peter
Dialogue: 0,0:00:50.82,0:00:51.65,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}嘿Tim 你好吗？
Dialogue: 0,0:00:51.66,0:00:52.49,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}很高兴再次见到你
Dialogue: 0,0:00:52.49,0:00:53.32,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}有没有感觉屁股快冻住了
Dialogue: 0,0:00:53.32,0:00:54.36,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}是的
Dialogue: 0,0:00:54.36,0:00:56.50,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}来这儿度过年末时光挺不错的
Dialogue: 0,0:00:56.50,0:00:57.40,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}快到2020年了
Dialogue: 0,0:00:57.40,0:00:58.33,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这地方确实不错
Dialogue: 0,0:00:58.33,0:01:00.49,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而且 你们这一年的成就难以置信
Dialogue: 0,0:01:00.49,0:01:03.16,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}是啊 我们队伍2019年的成果让我感到很自豪
Dialogue: 0,0:01:03.16,0:01:06.72,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}年末大家都会为此感到高兴
Dialogue: 0,0:01:06.72,0:01:09.64,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}今年到头 你们一共发射了6次对吧
Dialogue: 0,0:01:09.64,0:01:10.47,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对
Dialogue: 0,0:01:10.47,0:01:13.69,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而且 你们现在有两个发射台正在运作
Dialogue: 0,0:01:13.69,0:01:14.52,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对
Dialogue: 0,0:01:14.52,0:01:18.26,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而且 你们开始搞重复使用了
Dialogue: 0,0:01:18.26,0:01:22.70,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}是的 当前可重复使用的工作达到了重要阶段
Dialogue: 0,0:01:22.70,0:01:24.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}比我们预期的更好
Dialogue: 0,0:01:24.89,0:01:26.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那我们从这里开始吧
Dialogue: 0,0:01:26.90,0:01:28.52,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这确实是让人感兴趣的话题
Dialogue: 0,0:01:28.52,0:01:33.23,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以你以前是听之任之 {\i1}不知道先生{\i0}
Dialogue: 0,0:01:33.23,0:01:35.14,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}可能不是要去尝试 可重复使用能力
Dialogue: 0,0:01:35.14,0:01:36.55,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}(说)这里面没有利润
Dialogue: 0,0:01:36.55,0:01:38.69,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}首先 跟我说说你是怎么转变看法的
Dialogue: 0,0:01:38.69,0:01:41.41,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}也就是重复使用其实是有市场的
Dialogue: 0,0:01:41.41,0:01:42.77,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}也许是值得的
Dialogue: 0,0:01:42.77,0:01:44.14,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}说说你的想法
Dialogue: 0,0:01:44.14,0:01:46.77,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那么 小型运载火箭确实是非常困难的
Dialogue: 0,0:01:46.77,0:01:49.80,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}导致小型运载火箭的利润如此紧张
Dialogue: 0,0:01:49.80,0:01:53.25,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}当你的有效载荷只有150kg时
Dialogue: 0,0:01:53.25,0:01:57.72,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}再加入100kg的降落伞是很难处理的事情
Dialogue: 0,0:01:57.72,0:02:02.10,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 那么 真正让我考虑这个事情是当我开始看数据
Dialogue: 0,0:02:02.10,0:02:05.49,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}发现一级火箭的再入大气之后的生存能力是如此之好
Dialogue: 0,0:02:05.49,0:02:10.28,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们获得了很好的上升段的测量数据
Dialogue: 0,0:02:10.28,0:02:12.94,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我开始理解这件事
Dialogue: 0,0:02:12.94,0:02:18.14,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}当然 也是为了提高发射频率
Dialogue: 0,0:02:18.14,0:02:20.59,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}至于工厂
Dialogue: 0,0:02:20.59,0:02:23.08,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我之前就决定必须要把工厂扩建一倍
Dialogue: 0,0:02:23.08,0:02:25.09,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}然后继续建造更多机器
Dialogue: 0,0:02:25.09,0:02:27.29,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}让制造过程变得更加自动化
Dialogue: 0,0:02:27.29,0:02:33.48,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}工厂这边的事是很明确的 话说回来 火箭回收这边的数据并不夸张
Dialogue: 0,0:02:33.48,0:02:36.83,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}是很困难 但还不至于打破物理法则
Dialogue: 0,0:02:36.83,0:02:40.43,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 如此 我在公司内部组建了一个小团队
Dialogue: 0,0:02:40.43,0:02:43.07,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}并着手完成这个项目
Dialogue: 0,0:02:43.07,0:02:48.34,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 你有像Wile E. Coyote的黑板那样的说明来简单介绍一下这个工作吗
Dialogue: 0,0:02:48.34,0:02:51.15,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} -  是啊 肯定有大量的白板讨论
Dialogue: 0,0:02:52.06,0:02:56.51,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 跟我分享一下 在你尝试这件事之前
Dialogue: 0,0:02:56.51,0:02:59.97,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}是否有其他竞争者尝试做空中的回收？
Dialogue: 0,0:02:59.97,0:03:04.14,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊 考虑到最后把火箭降落到回收网里
Dialogue: 0,0:03:04.14,0:03:06.21,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}和SpaceX所做的没有什么不同呢
Dialogue: 0,0:03:06.21,0:03:08.42,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}更不用说反推式再入
Dialogue: 0,0:03:08.42,0:03:11.72,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但这个事情就像是你只有半张餐巾纸写字一样
Dialogue: 0,0:03:11.72,0:03:13.63,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}最后你会发现这行不通的
Dialogue: 0,0:03:14.54,0:03:21.50,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}没错 团队里大家有很多不同的想法
Dialogue: 0,0:03:21.50,0:03:24.48,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}类似巨型无人机 或者其他很多东西
Dialogue: 0,0:03:24.48,0:03:28.66,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 啊 对 这正是我想问的
Dialogue: 0,0:03:28.66,0:03:31.74,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我和一些人做了一个播客叫 {\i1}Our Ludicrous Future(我们滑稽的未来){\i0}
Dialogue: 0,0:03:31.74,0:03:34.51,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}每周 我们会收集人们的问题
Dialogue: 0,0:03:34.51,0:03:35.57,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}他们为什么不只是...{\i0}
Dialogue: 0,0:03:35.57,0:03:36.40,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊 是啊 没错
Dialogue: 0,0:03:36.40,0:03:39.32,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这是个好问题 {\i1}为什么不干脆用个巨大的无人机呢{\i0}
Dialogue: 0,0:03:39.32,0:03:40.61,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}你们已经有电池了{\i0}
Dialogue: 0,0:03:40.61,0:03:44.99,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}你有电动机 使用它的话会比操作一个直升机便宜{\i0}
Dialogue: 0,0:03:44.99,0:03:48.05,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}甚至能搞成四轴的{\i0}
Dialogue: 0,0:03:48.05,0:03:50.15,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}为什么最后没有这么做呢？
Dialogue: 0,0:03:50.15,0:03:53.65,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 嗯 我的意思是 我正准备我的直升机驾照 所以
Dialogue: 0,0:03:53.65,0:03:57.78,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} 使用直升机很好
Dialogue: 0,0:03:57.78,0:04:00.52,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 只是因为你想多飞下直升机吗？
Dialogue: 0,0:04:00.52,0:04:03.11,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 不 不 不 但它有一个小原子在里面
Dialogue: 0,0:04:04.05,0:04:07.85,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}当然不是这样 我是指用直升机捕获这件事在之前已经被很多人做过了
Dialogue: 0,0:04:07.85,0:04:09.08,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}很多人看到这个
Dialogue: 0,0:04:09.08,0:04:12.31,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}他们就会说这些话 {\i1}这也太难搞了{\i0}
Dialogue: 0,0:04:12.31,0:04:14.11,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}和 {\i1}这么难的事情怎么能做成呢？{\i0}
Dialogue: 0,0:04:14.11,0:04:17.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但实际上这是相对正统(理论)的做法
Dialogue: 0,0:04:17.81,0:04:20.62,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}比起让火箭再入并让其幸存要稍微正统一点
Dialogue: 0,0:04:20.62,0:04:23.18,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 好吧 你与一些公司合作
Dialogue: 0,0:04:23.18,0:04:27.96,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}是那些位于苏格兰或英格兰那些有回收系统的公司吗？
Dialogue: 0,0:04:27.96,0:04:28.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}真的吗
Dialogue: 0,0:04:28.89,0:04:29.78,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}- 不 不
Dialogue: 0,0:04:29.78,0:04:31.85,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 好吧 当然 网上的那些人马上就发现了
Dialogue: 0,0:04:31.85,0:04:33.94,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你们这些人正着手研究的东西{\i1}没错 这个已经有人做出来了{\i0}
Dialogue: 0,0:04:33.94,0:04:38.94,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}一家公司的一个视频 内容是回收一个带翼伞的模型火箭{\i0}
Dialogue: 0,0:04:38.94,0:04:41.02,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊 可这件事在此之前就已完成
Dialogue: 0,0:04:41.02,0:04:43.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}洛克希德·马丁公司大概90年代就做到了
Dialogue: 0,0:04:43.76,0:04:49.27,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}他们尝试回收一些再入的人造物体
Dialogue: 0,0:04:49.27,0:04:51.62,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}如果你追溯到更早的时期
Dialogue: 0,0:04:51.62,0:04:52.75,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你看看日冕计划
Dialogue: 0,0:04:52.75,0:04:54.67,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}尽管(ULA回收的那部分)用的是直升机 但和这个也差不多
Dialogue: 0,0:04:54.67,0:04:55.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 对 没错
Dialogue: 0,0:04:55.76,0:04:57.74,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}再入之后打开降落伞
Dialogue: 0,0:04:57.74,0:04:59.05,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在它溅落之前回收它
Dialogue: 0,0:04:59.05,0:05:00.28,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊 这基本上一样
Dialogue: 0,0:05:00.28,0:05:01.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 那么 你有多少时间
Dialogue: 0,0:05:01.90,0:05:05.25,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在溅落和降落伞部署之间
Dialogue: 0,0:05:05.25,0:05:07.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 所以这就是我们用翼伞的想法 可以用风控制它
Dialogue: 0,0:05:07.89,0:05:10.15,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}最大程度的延长滞空时间
Dialogue: 0,0:05:10.15,0:05:11.63,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}差不多可以维持20分钟
Dialogue: 0,0:05:11.63,0:05:15.28,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}- 所以这么说你可以用直升机多次尝试回收过程
Dialogue: 0,0:05:15.28,0:05:19.72,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊  所以我们尝试并限制下降率最大为每秒10米
Dialogue: 0,0:05:19.72,0:05:23.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这么看去用钩子回收的几率很大
Dialogue: 0,0:05:23.86,0:05:25.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 好吧 听起来不错
Dialogue: 0,0:05:25.82,0:05:29.36,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以近期之内真的没有无人机了吗？
Dialogue: 0,0:05:29.36,0:05:35.74,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 不会的 以前只讨论过无人船 但现在不考虑无人机
Dialogue: 0,0:05:35.74,0:05:39.57,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 好吧 这是你对 {\i1}为什么不干脆用无人机{\i0}(的回答)
Dialogue: 0,0:05:39.57,0:05:40.92,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - Peter喜欢驾驶直升机
Dialogue: 0,0:05:40.92,0:05:43.56,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这就是原因
Dialogue: 0,0:05:43.56,0:05:47.88,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}不过 没关系 关于反推 很多人说
Dialogue: 0,0:05:47.88,0:05:49.60,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}他们为什么不做反推式再入？{\i0}
Dialogue: 0,0:05:49.60,0:05:52.22,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}答案很简单 最有可能是 你不需要它
Dialogue: 0,0:05:52.22,0:05:54.91,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你的一级火箭能够扛下高温墙
Dialogue: 0,0:05:54.91,0:05:55.79,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没错 它确实扛过了高温墙
Dialogue: 0,0:05:55.79,0:05:57.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 而且不需要反推来减速
Dialogue: 0,0:05:57.86,0:05:59.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 而且它不仅扛下了高温墙
Dialogue: 0,0:06:00.76,0:06:04.55,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而且还是最差的再入弹道
Dialogue: 0,0:06:04.55,0:06:08.13,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}绝对没有加上任何减速部件
Dialogue: 0,0:06:08.13,0:06:10.42,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}就是这么热的情况下撑了过来
Dialogue: 0,0:06:10.42,0:06:12.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 那么 好吧 那么问题来了
Dialogue: 0,0:06:12.82,0:06:15.01,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对不起 我就是要好好问清楚这里的问题
Dialogue: 0,0:06:16.91,0:06:20.27,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你的发动机卢瑟福能二次点火吗
Dialogue: 0,0:06:22.01,0:06:28.80,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 因为使用的是火炬式点火器 而不是三乙基铝-三乙基硼烷 所以能多次点火
Dialogue: 0,0:06:28.80,0:06:32.36,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但我们不常用它 因为还有别的事要准备
Dialogue: 0,0:06:32.36,0:06:35.35,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们需要用氮或者别的东西来清洗燃烧室
Dialogue: 0,0:06:35.35,0:06:38.05,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在发射的火箭上则完全不使用这个功能
Dialogue: 0,0:06:38.05,0:06:41.15,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}二次点火能力(对整个电子火箭的发射过程)而言是没有太大意义的
Dialogue: 0,0:06:41.15,0:06:44.03,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 但是 你从来没遇到过需要二次点火的任务吗
Dialogue: 0,0:06:44.03,0:06:44.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没有
Dialogue: 0,0:06:44.86,0:06:46.10,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这就是kick stage的工作吗
Dialogue: 0,0:06:46.10,0:06:47.32,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊 kick stage很好
Dialogue: 0,0:06:47.32,0:06:52.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对于圆化轨道而言 它的推进系统的大小恰到好处
Dialogue: 0,0:06:52.89,0:06:54.56,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而且轨道注入真的很准确
Dialogue: 0,0:06:54.56,0:06:58.59,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}达到这种精度 对于一级火箭和二级火箭而言是很难的
Dialogue: 0,0:06:58.59,0:07:02.24,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}哪怕只是点火几秒钟也都过度了
Dialogue: 0,0:07:02.24,0:07:06.93,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是居里却要点火20-30秒(才能达到相同的效果) 这样就能获得很高的精度
Dialogue: 0,0:07:06.93,0:07:09.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - kick stage进行的是时间长 但是推力小的推进过程
Dialogue: 0,0:07:09.81,0:07:12.38,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}换成推力大的发动机就只要很短时间
Dialogue: 0,0:07:12.38,0:07:17.17,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 让我最满意的东西是调整轨道时做的圆化点火
Dialogue: 0,0:07:17.17,0:07:23.59,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在任务控制中心 能看到目标轨道和(实际)上升轨道
Dialogue: 0,0:07:23.59,0:07:29.39,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}看着这两条轨道在30多秒内缓慢地靠近并重合在一起真是令人难以置信的满足
Dialogue: 0,0:07:29.39,0:07:32.74,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}很美丽
Dialogue: 0,0:07:32.74,0:07:35.62,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 很精彩 最近有个SpaceX的任务
Dialogue: 0,0:07:35.62,0:07:39.31,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}他们的上面级(二级)使用梅林引擎 过于强大
Dialogue: 0,0:07:39.31,0:07:41.74,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我觉得他们大概
Dialogue: 0,0:07:41.74,0:07:44.17,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}点火点了不到半秒钟
Dialogue: 0,0:07:44.17,0:07:45.97,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}就像爆炸一样
Dialogue: 0,0:07:45.97,0:07:49.22,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}稍纵即逝
Dialogue: 0,0:07:49.22,0:07:51.75,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}就是晃动了一下
Dialogue: 0,0:07:51.75,0:07:53.85,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而你们呢
Dialogue: 0,0:07:53.85,0:07:56.83,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}现在升级成了光子上面级
Dialogue: 0,0:07:56.83,0:07:59.21,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}光子不使用居里发动机
Dialogue: 0,0:07:59.21,0:08:00.70,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}还是说从此往后上面级都叫光子了？
Dialogue: 0,0:08:00.70,0:08:02.93,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这里面有些争议
Dialogue: 0,0:08:02.93,0:08:06.15,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}kick stage现在就是指光子
Dialogue: 0,0:08:06.15,0:08:07.56,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但也有不同的种类
Dialogue: 0,0:08:07.56,0:08:10.58,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对于kick stage 我们有单组元推进剂的和双组元推进剂的
Dialogue: 0,0:08:10.58,0:08:13.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以 你知道 对于不要求额外性能的任务
Dialogue: 0,0:08:13.86,0:08:15.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们更偏向于用单组元推进剂
Dialogue: 0,0:08:15.82,0:08:19.04,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为(对于单组元推进剂)你只需要打开一下阀门
Dialogue: 0,0:08:19.04,0:08:21.31,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是 对于性能要求较高的任务 我们用双组元推进剂
Dialogue: 0,0:08:21.31,0:08:25.11,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 单组元和双组元之间的比冲差异多大
Dialogue: 0,0:08:25.11,0:08:29.20,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 差不多50-60秒
Dialogue: 0,0:08:29.20,0:08:30.30,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}确实挺大的
Dialogue: 0,0:08:30.30,0:08:33.57,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 换用双组元之后 你将获得多少dv提升呢
Dialogue: 0,0:08:34.42,0:08:37.13,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 我不记得确切的数字
Dialogue: 0,0:08:37.13,0:08:41.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为这取决于推进剂储箱的组合
Dialogue: 0,0:08:41.90,0:08:46.99,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}上面级的灵活性体现在不同任务中进行不同的配置
Dialogue: 0,0:08:46.99,0:08:51.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}譬如像第10次飞行中到达400km的轨道
Dialogue: 0,0:08:51.90,0:08:55.30,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}释放部分卫星后 再次点火 降低轨道 然后再部署一些
Dialogue: 0,0:08:55.30,0:08:57.24,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}越来越多的这类任务
Dialogue: 0,0:08:57.24,0:09:00.06,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}会涉及到多次点火 变轨之类的东西
Dialogue: 0,0:09:00.06,0:09:04.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的 这对客户很有价值 可以直接部署到他们想去的轨道
Dialogue: 0,0:09:04.81,0:09:07.06,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}他们自己不需要再做推进的工作
Dialogue: 0,0:09:07.06,0:09:09.10,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这正是专用火箭的意义所在
Dialogue: 0,0:09:09.10,0:09:13.26,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对于共同搭载类任务而言是做不到的
Dialogue: 0,0:09:13.26,0:09:14.75,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没错
Dialogue: 0,0:09:14.75,0:09:18.77,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那么 你们还有个任务是要去月球的吗
Dialogue: 0,0:09:18.77,0:09:19.60,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊
Dialogue: 0,0:09:19.60,0:09:25.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 那么kick stage的地月转移轨道的载荷有多少 或者它能抵达完全的地月转移轨道吗
Dialogue: 0,0:09:25.76,0:09:26.59,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没错 光子能做到这点
Dialogue: 0,0:09:26.59,0:09:27.72,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 真的吗？ - 是的 基本能达到
Dialogue: 0,0:09:27.72,0:09:29.27,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}光子上面级能到月球
Dialogue: 0,0:09:29.27,0:09:31.35,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 那这一脚有多少dv
Dialogue: 0,0:09:31.35,0:09:35.48,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 正如我前面说的 可以配置储罐不同的储罐组合
Dialogue: 0,0:09:35.48,0:09:39.98,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}光子到月球的计划 只是相当于在有效载荷平台上加了个大储罐
Dialogue: 0,0:09:39.98,0:09:44.41,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而光子里面还集成了导航 通信 以及其他必要的东西
Dialogue: 0,0:09:44.41,0:09:50.93,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在设计居里发动机时 就考虑到要让其能工作很长的时间
Dialogue: 0,0:09:50.93,0:09:53.32,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以 -
Dialogue: 0,0:09:53.32,0:09:55.87,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 它能带多个载荷
Dialogue: 0,0:09:55.87,0:09:56.85,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没错
Dialogue: 0,0:09:56.85,0:09:59.21,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 轨道注入点火？ - 优化它
Dialogue: 0,0:09:59.21,0:10:00.66,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}直接入轨代价比较高 但是 -
Dialogue: 0,0:10:00.66,0:10:03.15,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 看到这些让人振奋人心
Dialogue: 0,0:10:03.15,0:10:04.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}想想这种尺寸的火箭
Dialogue: 0,0:10:04.89,0:10:08.44,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}一个小火箭也能把有效载荷带到月球
Dialogue: 0,0:10:08.44,0:10:14.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这在很多方面都会振奋人心 因为它带来了很多不同的机会
Dialogue: 0,0:10:14.86,0:10:19.77,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}TLI很难 但我们也可以去地球同步轨道 或者日心轨道
Dialogue: 0,0:10:19.77,0:10:22.98,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是这种能力让人振奋
Dialogue: 0,0:10:22.98,0:10:24.61,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 我甚至没有想到GEO
Dialogue: 0,0:10:24.63,0:10:28.02,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我肯定以前没有这样的小型火箭做到过
Dialogue: 0,0:10:28.02,0:10:28.97,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 确实没有
Dialogue: 0,0:10:28.97,0:10:30.48,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 甚至想接近都做不到
Dialogue: 0,0:10:30.48,0:10:32.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以 这是相当惊人的
Dialogue: 0,0:10:32.46,0:10:36.68,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这之中大家都想问的是
Dialogue: 0,0:10:36.68,0:10:40.21,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}为回收所准备的硬件
Dialogue: 0,0:10:40.21,0:10:44.75,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你用双组元推进剂有(弥补回收导致的)dv不足这方面的考虑吗
Dialogue: 0,0:10:44.75,0:10:49.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 当然 不管是电子的哪个部分 我们都在努力提高它的性能
Dialogue: 0,0:10:49.46,0:10:55.32,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}通过提高性能来减少回收的影响
Dialogue: 0,0:10:55.32,0:10:59.05,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但正如我之前说的 如果任务不需要它
Dialogue: 0,0:10:59.05,0:11:01.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那我们一般不会用上它 我们只用单组元推进剂
Dialogue: 0,0:11:01.76,0:11:03.09,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊 所以总体来说
Dialogue: 0,0:11:03.09,0:11:10.16,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}相比于第1次飞行 你在第10次飞行的过程中做了任何电池或者发动机的优化吗
Dialogue: 0,0:11:10.16,0:11:15.50,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 很惊人的是 很少部分的系统发生了改变
Dialogue: 0,0:11:15.50,0:11:20.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们之前增进了对火箭各系统的了解 这样才能提高余量
Dialogue: 0,0:11:20.86,0:11:26.13,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但真的没有对任何一个系统进行了重新设计
Dialogue: 0,0:11:26.13,0:11:30.38,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}2020年我们也会如此小幅改进
Dialogue: 0,0:11:30.38,0:11:32.84,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}也会一直进行增强
Dialogue: 0,0:11:32.84,0:11:37.29,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为回收 我们会在一级上加质量
Dialogue: 0,0:11:37.33,0:11:41.08,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在这个简单的路线图上 给载具增加性能
Dialogue: 0,0:11:41.08,0:11:45.11,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 方便的话 你能说下为了回收 一级加了多少质量吗
Dialogue: 0,0:11:45.11,0:11:52.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这真的取决于下降弹道和降落伞(的设计)有多成功
Dialogue: 0,0:11:54.40,0:11:59.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我觉得一级应该增重不超过150kg 但你要知道这些比例
Dialogue: 0,0:11:59.86,0:12:02.19,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 那这比例大概是4比1？
Dialogue: 0,0:12:02.19,0:12:04.60,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 其实 对电子火箭而言很多
Dialogue: 0,0:12:04.60,0:12:09.73,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为2级做的工作更多 对1级而言比例更接近8比1
Dialogue: 0,0:12:09.73,0:12:10.28,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 真的吗
Dialogue: 0,0:12:10.28,0:12:13.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的 所以在下面(一级)可以带多一些质量
Dialogue: 0,0:12:13.86,0:12:16.47,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 我需要给观众解释下
Dialogue: 0,0:12:16.47,0:12:18.71,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这意味着他们可以给一级加些质量
Dialogue: 0,0:12:18.71,0:12:21.12,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而不会对有效载荷带来同等质量的损失
Dialogue: 0,0:12:21.13,0:12:23.55,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这与上面级的质量增加不同
Dialogue: 0,0:12:23.55,0:12:26.24,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以你在一级增加8kg质量
Dialogue: 0,0:12:26.24,0:12:29.55,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}只会让有效载荷质量损失1kg
Dialogue: 0,0:12:29.55,0:12:35.48,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那么另一个问题是 {\i1}以前有过什么想法吗{\i0}
Dialogue: 0,0:12:36.36,0:12:41.33,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}好吧 我先问问你上面级的比冲有多少
Dialogue: 0,0:12:41.33,0:12:43.16,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是说卢瑟福吗
Dialogue: 0,0:12:43.16,0:12:46.32,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 啊 是的 是搭载卢瑟福发动机的上面级(二级)
Dialogue: 0,0:12:46.32,0:12:48.49,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 它比冲大概有342秒(卢瑟福真空版)
Dialogue: 0,0:12:48.49,0:12:49.84,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}差不多
Dialogue: 0,0:12:49.84,0:12:52.23,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}它是个声音很大的高性能小发动机
Dialogue: 0,0:12:52.23,0:12:56.60,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}是啊 大概97％ seastar(?) 效率
Dialogue: 0,0:12:57.17,0:12:58.57,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}相当可以
Dialogue: 0,0:12:58.57,0:13:03.44,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 那么 有没有想过给上面级(二级)换个燃料
Dialogue: 0,0:13:03.44,0:13:05.84,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}或者一级也行 譬如甲烷 你们想过甲烷吗
Dialogue: 0,0:13:05.84,0:13:08.25,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 真没这么想过
Dialogue: 0,0:13:09.45,0:13:11.33,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\a6}我喜欢煤油
Dialogue: 0,0:13:11.33,0:13:12.94,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\a6}这里面可以展开很多话题
Dialogue: 0,0:13:12.94,0:13:16.12,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}两种低温推进剂总比一个低温一个常温好{\i0}
Dialogue: 0,0:13:17.01,0:13:22.08,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\fs70}我不想处理第二种低温推进剂 特别是液态甲烷还容易燃烧
Dialogue: 0,0:13:22.08,0:13:23.31,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}如果你见过了
Dialogue: 0,0:13:25.34,0:13:28.45,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}SpaceX公司最近发生的一些事情
Dialogue: 0,0:13:28.45,0:13:30.65,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}甲烷肯定喜欢着火
Dialogue: 0,0:13:31.60,0:13:34.09,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}煤油是非常不同的
Dialogue: 0,0:13:34.12,0:13:37.29,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}虽然这之中会有一些性能提升
Dialogue: 0,0:13:37.34,0:13:42.36,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是煤油操作起来更方便
Dialogue: 0,0:13:43.58,0:13:47.55,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们努力要做的是批量生产并发射出去
Dialogue: 0,0:13:47.55,0:13:52.08,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}增加复杂度实在不是我们想做的
Dialogue: 0,0:13:52.08,0:13:56.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这就像你的名片一样 保持越简单越好
Dialogue: 0,0:13:56.89,0:14:00.23,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}每个人都希望简单 也就像懒人工程师一样
Dialogue: 0,0:14:00.23,0:14:02.01,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}很多航空粉丝就像
Dialogue: 0,0:14:02.01,0:14:05.87,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}如果他们做了这项 那项增强 他们也许就能发射400kg载荷{\i0}
Dialogue: 0,0:14:05.87,0:14:07.66,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这就像权衡利弊的好处
Dialogue: 0,0:14:07.66,0:14:12.19,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}为了增加客户 有效载荷的机会等等
Dialogue: 0,0:14:12.27,0:14:15.75,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而研发这些新的复杂的东西
Dialogue: 0,0:14:15.75,0:14:17.64,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我记得我们上次提到了气尖发动机
Dialogue: 0,0:14:17.64,0:14:21.88,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这算是完美的例子之一
Dialogue: 0,0:14:21.88,0:14:26.52,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}也许它可以在某些事情上有帮助 或改善某些情况 但到了最后
Dialogue: 0,0:14:26.52,0:14:28.26,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}即使你能让它完美运转{\i0}
Dialogue: 0,0:14:28.26,0:14:31.93,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}你让它工作所耗费的成本花费了多少 而且长远来看这是否值得{\i0}
Dialogue: 0,0:14:31.93,0:14:32.58,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的
Dialogue: 0,0:14:32.58,0:14:35.02,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 你最后可能又回到了最初
Dialogue: 0,0:14:35.02,0:14:37.70,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那么 优化上面级
Dialogue: 0,0:14:37.70,0:14:42.38,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}不会通过液态甲烷或者其他低温燃料 或者改变系统的方式来实现
Dialogue: 0,0:14:42.38,0:14:44.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我有两个关于上面级的问题
Dialogue: 0,0:14:44.76,0:14:45.65,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}- 好的
Dialogue: 0,0:14:45.65,0:14:47.14,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 你同时分离两个电池
Dialogue: 0,0:14:47.14,0:14:47.97,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没错
Dialogue: 0,0:14:47.98,0:14:49.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 为什么没打算分阶段分离他们
Dialogue: 0,0:14:49.82,0:14:51.43,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}一个接着一个
Dialogue: 0,0:14:51.43,0:14:55.45,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没错 有效载荷会因此有轻微上涨
Dialogue: 0,0:14:55.45,0:15:00.03,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是一次分离两个的优点是你不会引入多余的扭矩
Dialogue: 0,0:15:00.03,0:15:01.45,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为它们分离时产生的力矩互相抵消了
Dialogue: 0,0:15:01.45,0:15:02.01,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 一个(接着一个)
Dialogue: 0,0:15:02.01,0:15:04.61,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 其中一个下来的时候 有点抖动 但是加上另外一个
Dialogue: 0,0:15:04.62,0:15:08.41,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}就会发现导航系统能很顺利地解决这个问题
Dialogue: 0,0:15:08.41,0:15:10.16,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}在分离两块电池时 你会发现导航系统
Dialogue: 0,0:15:10.16,0:15:13.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}甚至没有察觉到分离的动静 整流罩分离时也是如此
Dialogue: 0,0:15:13.81,0:15:18.69,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}如此 这也是从一开始就降低风险的设计
Dialogue: 0,0:15:18.69,0:15:24.27,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}特别是对于这么小的有效载荷而言 就不要再引入更多的风险了
Dialogue: 0,0:15:24.27,0:15:27.52,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没错 又是那个{\i1}不要再引入更多风险{\i0}
Dialogue: 0,0:15:27.52,0:15:30.17,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}二级总是有有火花从喷管中喷出
Dialogue: 0,0:15:30.17,0:15:31.49,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那个是咋回事儿啊
Dialogue: 0,0:15:31.49,0:15:34.78,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 卢瑟福发动机效率很高
Dialogue: 0,0:15:34.78,0:15:38.17,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这件事儿挺有趣的 你常听人们说
Dialogue: 0,0:15:38.17,0:15:39.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}哦 他们一定有个桨式喷嘴{\i0}
Dialogue: 0,0:15:39.86,0:15:41.32,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}{\i1}尽管它泛着鲜艳的红色{\i0}
Dialogue: 0,0:15:41.32,0:15:44.30,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}不过这其实是一些碳质沉积
Dialogue: 0,0:15:44.30,0:15:47.49,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这些碳质堆积到喷注器上就像钟乳石一样
Dialogue: 0,0:15:47.49,0:15:50.61,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}积累到一定规模 就会掉渣
Dialogue: 0,0:15:50.61,0:15:53.42,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}接着这些碳质就夹杂在尾气流中吹走了
Dialogue: 0,0:15:53.42,0:15:54.25,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 真的吗？
Dialogue: 0,0:15:54.26,0:15:55.66,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊
Dialogue: 0,0:15:55.66,0:15:57.62,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这就是RP-1的碳质？
Dialogue: 0,0:15:57.62,0:15:58.45,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}- 对
Dialogue: 0,0:15:58.45,0:16:01.05,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 哇 而且射出来看起来像小火花一样
Dialogue: 0,0:16:01.05,0:16:02.06,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 小火花 是的
Dialogue: 0,0:16:02.06,0:16:02.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 真的啊
Dialogue: 0,0:16:02.89,0:16:07.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的 但是喷注器的效率还是很高的
Dialogue: 0,0:16:07.81,0:16:08.99,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以这是真的 -
Dialogue: 0,0:16:08.99,0:16:13.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 你们表面是怎么做的 是同轴形状的 还是
Dialogue: 0,0:16:13.89,0:16:14.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这是一个很好的喷注器
Dialogue: 0,0:16:14.90,0:16:18.38,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - {\i1}这是一个很好的喷注器{\i0} 口风很严
Dialogue: 0,0:16:18.38,0:16:19.21,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}好好好
Dialogue: 0,0:16:19.21,0:16:22.35,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}好 我们已经讨论过了
Dialogue: 0,0:16:22.35,0:16:27.35,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}喷注器 甲烷 喷火花的发动机
Dialogue: 0,0:16:27.45,0:16:30.39,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}好的 回到可回收能力 我们只围绕这个话题谈
Dialogue: 0,0:16:31.00,0:16:35.01,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你完全没必要为可回收做任何空气动力的系统吗
Dialogue: 0,0:16:35.01,0:16:37.07,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没有任何空气动力的附件
Dialogue: 0,0:16:37.07,0:16:40.49,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}整个一级是靠RCS控制的
Dialogue: 0,0:16:40.49,0:16:42.07,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}只需要一些RCS发动机
Dialogue: 0,0:16:42.07,0:16:43.09,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 那些RCS发动机很小很可爱
Dialogue: 0,0:16:43.09,0:16:44.15,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的 它们是小可爱
Dialogue: 0,0:16:44.15,0:16:45.39,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那些小家伙啊
Dialogue: 0,0:16:45.39,0:16:48.22,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 但这个控制力足以指向正确的方向了吗
Dialogue: 0,0:16:48.22,0:16:50.55,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的 这很有趣
Dialogue: 0,0:16:50.55,0:16:56.13,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对一级而言 那种超音速状态下的动态稳定性
Dialogue: 0,0:16:57.22,0:17:00.95,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}只有在亚音速状态下 它才有翻转的力
Dialogue: 0,0:17:00.95,0:17:03.73,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是在超音速状态下 其实挺稳定的
Dialogue: 0,0:17:03.73,0:17:05.61,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 因为是发动机朝下 而且 -
Dialogue: 0,0:17:05.61,0:17:09.92,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 因为发动机和电池都在底部 所以质量也集中在底部
Dialogue: 0,0:17:09.92,0:17:17.83,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以差不多在二级点火5秒以后
Dialogue: 0,0:17:17.83,0:17:22.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们就开始一种机动 首先是翻转
Dialogue: 0,0:17:22.89,0:17:25.21,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}然后指向再入通道的方向
Dialogue: 0,0:17:27.07,0:17:29.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这个看起来也很好 因为我在屏幕上也能看到
Dialogue: 0,0:17:29.86,0:17:31.42,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}当时我看得很仔细
Dialogue: 0,0:17:31.42,0:17:33.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}只是看着那些比率下降
Dialogue: 0,0:17:33.90,0:17:35.42,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}它们都收敛到零
Dialogue: 0,0:17:35.42,0:17:36.38,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我当时想 {\i1}这是好事{\i0}
Dialogue: 0,0:17:36.38,0:17:39.21,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}只需要坐着等 那些数值就都归零了
Dialogue: 0,0:17:39.21,0:17:40.38,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我想 {\i1}这是件好事{\i0}
Dialogue: 0,0:17:40.38,0:17:45.98,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}接着一级火箭就抵达了最高点
Dialogue: 0,0:17:45.98,0:17:48.50,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}方向矢量没问题
Dialogue: 0,0:17:48.50,0:17:50.65,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}一切数值保持在正常状态
Dialogue: 0,0:17:50.65,0:17:53.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}然后那些RCS的小发动机点火 并完成自己的工作
Dialogue: 0,0:17:53.81,0:17:56.75,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}火箭有点滚转 但滚转是我们不太在意的那个坐标轴
Dialogue: 0,0:17:56.75,0:18:00.35,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}处理滚转总是很难
Dialogue: 0,0:18:00.35,0:18:01.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 而且 你不必让(主)发动机二次点火
Dialogue: 0,0:18:01.81,0:18:04.47,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以你不必担心储罐里燃料飞溅之类的事情
Dialogue: 0,0:18:04.47,0:18:08.54,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - (适当)滚转是有益的 特别是那种烧烤滚转 这样你就不会(把仪器)烤熟了
Dialogue: 0,0:18:08.54,0:18:10.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是 所有的功劳归导航控制团队
Dialogue: 0,0:18:10.81,0:18:16.18,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}他们持续几周半夜两点提交代码并进行调整
Dialogue: 0,0:18:16.18,0:18:20.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那些人实在是
Dialogue: 0,0:18:20.46,0:18:21.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你看看载具的精度
Dialogue: 0,0:18:21.89,0:18:25.02,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}都要归功于他们 太不可思议了
Dialogue: 0,0:18:25.02,0:18:29.30,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这让人吃惊 那么那些小的RCS推进器用的是什么燃料
Dialogue: 0,0:18:29.30,0:18:29.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 冷气体
Dialogue: 0,0:18:29.82,0:18:30.58,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 冷气体 是吗
Dialogue: 0,0:18:30.58,0:18:32.12,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}而这已足够
Dialogue: 0,0:18:32.12,0:18:33.70,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}它们小到难以入镜
Dialogue: 0,0:18:33.70,0:18:35.78,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 但你只要进入了再入通道 就没事了
Dialogue: 0,0:18:35.78,0:18:38.30,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}只有在离开再入通道之后 (进行机动时)推力大小这些才是问题
Dialogue: 0,0:18:38.30,0:18:39.63,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}再入通道是很狭窄的
Dialogue: 0,0:18:39.63,0:18:41.19,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}如果你在再入通道外面
Dialogue: 0,0:18:41.19,0:18:43.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}这个时候等离子体就会回来了
Dialogue: 0,0:18:43.46,0:18:45.62,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你只是挨着(超音速)激波的边缘走
Dialogue: 0,0:18:45.62,0:18:47.36,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}贴着这个边 就成功了
Dialogue: 0,0:18:47.36,0:18:50.94,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你只需紧跟在那后面
Dialogue: 0,0:18:50.94,0:18:54.64,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}跟在巨大的钟形激波后面 那就没问题了
Dialogue: 0,0:18:55.51,0:18:58.34,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 你说的这些真令人难以置信
Dialogue: 0,0:19:00.17,0:19:03.05,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}现在看起来这很有可能
Dialogue: 0,0:19:03.05,0:19:05.79,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}你只是把它带回来 通过大气层
Dialogue: 0,0:19:05.79,0:19:07.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}尽管回来时 有一部分的温度会达到太阳的水平
Dialogue: 0,0:19:07.90,0:19:08.77,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}然后它们还能幸存下来
Dialogue: 0,0:19:08.77,0:19:14.63,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}相比于之前的发射 你是不是必须得在一级(承重)结构之类的地方加了隔热板
Dialogue: 0,0:19:14.63,0:19:18.95,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 电子的底部(本来)就有一个很大的隔热板
Dialogue: 0,0:19:18.95,0:19:20.54,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为(底下)有多个发动机
Dialogue: 0,0:19:20.54,0:19:21.99,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}有很多羽流效应
Dialogue: 0,0:19:21.99,0:19:27.37,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因此 在某些马赫数下 会有很多回流流量
Dialogue: 0,0:19:27.37,0:19:30.21,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以需要一个性能较好的隔热板
Dialogue: 0,0:19:30.21,0:19:32.29,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}再入的时候我们确实发现隔热板有分裂的情况
Dialogue: 0,0:19:32.29,0:19:36.02,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为隔热板的设计目的并非用于承受那种动态压力
Dialogue: 0,0:19:36.02,0:19:39.19,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是我们仍然接收到很稳定的遥测信号
Dialogue: 0,0:19:39.19,0:19:43.57,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}储罐仍在加压状态 系统仍有响应 遥测信号一直维持到坠毁
Dialogue: 0,0:19:43.68,0:19:48.00,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}不过确实失去了几个传感器的信号
Dialogue: 0,0:19:48.00,0:19:50.23,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}包括一些隔热板上的传感器 但也就仅此而已了
Dialogue: 0,0:19:50.23,0:19:52.11,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 哇 那么你觉得它 -
Dialogue: 0,0:19:52.11,0:19:53.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 我认为这是在良好的状态
Dialogue: 0,0:19:53.46,0:19:53.78,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}- 哇
Dialogue: 0,0:19:53.78,0:19:58.09,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 所有的数据都显示 这是出奇地好
Dialogue: 0,0:19:58.09,0:20:02.18,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 所以你还会这样做一遍吗
Dialogue: 0,0:20:02.18,0:20:04.33,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的 我没想到第10次飞行是如此成功
Dialogue: 0,0:20:04.33,0:20:09.23,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我觉得这些东西可能比较难以建模和预测
Dialogue: 0,0:20:09.23,0:20:11.98,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}从一些小错误中学习并借鉴
Dialogue: 0,0:20:11.98,0:20:15.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以 我跟团队说了{\i1}没事 我们连续做两次(实验){\i0}
Dialogue: 0,0:20:15.90,0:20:17.13,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 确认所有东西
Dialogue: 0,0:20:17.13,0:20:18.99,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - (收集数据)是第一位的 我们会尽力的
Dialogue: 0,0:20:18.99,0:20:22.25,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们可能会学到很多东西 然后第二次可能就成功了
Dialogue: 0,0:20:22.25,0:20:30.14,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}第二次时我们直播可能会开久一点
Dialogue: 0,0:20:31.03,0:20:35.06,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}再入时我们是主动地关闭了相机的下行数据传输
Dialogue: 0,0:20:35.06,0:20:39.01,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为我们想保持完整的数据传输链路
Dialogue: 0,0:20:39.01,0:20:41.89,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}数据是最重要的 尽管图像也很好(但要牺牲一下)
Dialogue: 0,0:20:41.89,0:20:45.95,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以我们切换到低带宽模式 并关闭了相机
Dialogue: 0,0:20:45.95,0:20:51.18,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}尽管如此 在坠毁之前我们一直保持着1Mbps的速度
Dialogue: 0,0:20:51.18,0:20:54.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以下次我们可能会一直开着相机
Dialogue: 0,0:20:54.82,0:20:57.69,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 哇 所以这是个好消息
Dialogue: 0,0:20:57.69,0:21:03.86,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以 你尽量把第10次飞行做的事在第11次飞行上重复一遍
Dialogue: 0,0:21:03.86,0:21:08.87,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}那么到第12次飞行的时候你会把超音速气球和降落伞带上吗
Dialogue: 0,0:21:08.87,0:21:16.77,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 不会是第12次飞行 我们在转向下一阶段之前会做很多工作
Dialogue: 0,0:21:16.77,0:21:21.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我们现在还在很初级的阶段
Dialogue: 0,0:21:21.46,0:21:25.54,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}因为我们(只是)得到了需要处理的数据
Dialogue: 0,0:21:25.54,0:21:27.93,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以还需要另一部分的升级
Dialogue: 0,0:21:27.93,0:21:30.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}还需要好几次飞行
Dialogue: 0,0:21:30.46,0:21:31.29,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 真的吗？
Dialogue: 0,0:21:31.29,0:21:32.94,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 然后我们才会加上降落伞
Dialogue: 0,0:21:32.94,0:21:35.48,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 另外 方便的话
Dialogue: 0,0:21:35.48,0:21:36.95,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}还会有什么别的变化吗
Dialogue: 0,0:21:36.95,0:21:39.66,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 下一个阶段就是加上降落伞了
Dialogue: 0,0:21:39.66,0:21:44.53,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对于减速装置 我们还有很多事要做
Dialogue: 0,0:21:44.53,0:21:47.23,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但最想做的还是加上降落伞
Dialogue: 0,0:21:47.23,0:21:52.87,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}能完整地回收 在海里溅落 从里面捞出来 取证并进行分析
Dialogue: 0,0:21:52.87,0:21:56.71,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}只有实际物理地检查了硬件才能了解最多的东西
Dialogue: 0,0:21:56.71,0:22:02.81,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 当然 也可能一旦有了更多的空气动力学上的减速装置
Dialogue: 0,0:22:05.14,0:22:08.80,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}有人讨论过那种剥皮一样的中间级设计吗
Dialogue: 0,0:22:08.80,0:22:10.40,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}像开花一样
Dialogue: 0,0:22:10.40,0:22:13.74,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 实际上 那种东西加到级间端就是加错位置了 信不信由你
Dialogue: 0,0:22:13.74,0:22:14.57,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 真的吗？
Dialogue: 0,0:22:14.57,0:22:19.41,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的 这和高超音速流体状态是有一点点不同
Dialogue: 0,0:22:19.41,0:22:22.33,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 因为它离激波太远了
Dialogue: 0,0:22:22.33,0:22:23.91,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}起不了太多作用？
Dialogue: 0,0:22:23.91,0:22:25.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 没错 (再入时)就像打孔一样
Dialogue: 0,0:22:25.82,0:22:28.82,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}如果你的再入通道没问题 那么激波(在后部)会比较大
Dialogue: 0,0:22:28.82,0:22:31.75,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以 (减速装置放在后面)想要起作用就必须变得很大
Dialogue: 0,0:22:31.75,0:22:32.52,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 而这会很蠢
Dialogue: 0,0:22:32.52,0:22:35.97,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 所以你把级间端折叠成花瓣一样
Dialogue: 0,0:22:35.97,0:22:38.62,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}气流不会流过那里
Dialogue: 0,0:22:39.51,0:22:40.33,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这讲得通
Dialogue: 0,0:22:40.33,0:22:44.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以 你可能有小的折叠型减速板 在需要时从一级结构上弹出吗
Dialogue: 0,0:22:44.76,0:22:46.60,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是有各种不同的方法
Dialogue: 0,0:22:46.60,0:22:49.35,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 只是增加一些表面面积
Dialogue: 0,0:22:49.35,0:22:51.70,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 不同的情况有不同的解决方法
Dialogue: 0,0:22:51.70,0:22:55.27,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}可能更小的攻角会更有效(而不需要减速板这些)
Dialogue: 0,0:22:55.27,0:23:00.76,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}但是 我们所想的是尽量确保一级火箭温度较低并且不要被风压损坏
Dialogue: 0,0:23:00.76,0:23:03.06,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 所以 只要保持在你的再入通道里面
Dialogue: 0,0:23:03.06,0:23:08.09,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}所以你们是希望更长一点的通道 还是陡峭或者垂直往下的
Dialogue: 0,0:23:08.09,0:23:09.23,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这些都与攻角有关
Dialogue: 0,0:23:09.23,0:23:11.74,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}也是我们想尝试维持的参数
Dialogue: 0,0:23:11.74,0:23:15.00,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 因此 我们在2020年可以期待的事情会是：
Dialogue: 0,0:23:15.00,0:23:19.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}增加更多的可重复性使用的硬件 更多次发射
Dialogue: 0,0:23:19.46,0:23:20.72,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 发射频率翻番
Dialogue: 0,0:23:20.72,0:23:21.55,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 发射频率翻番
Dialogue: 0,0:23:21.55,0:23:22.38,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}每月一次？ - 是啊 是啊
Dialogue: 0,0:23:22.39,0:23:24.17,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 哇 从这里进行的发射
Dialogue: 0,0:23:24.17,0:23:25.34,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是的 从这里进行的发射
Dialogue: 0,0:23:25.34,0:23:26.17,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 从这里
Dialogue: 0,0:23:26.17,0:23:27.61,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 是啊 在这个飞行桶里
Dialogue: 0,0:23:27.61,0:23:30.25,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 当然我们不想在发射的时候呆在这里
Dialogue: 0,0:23:30.25,0:23:32.99,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}然后 2020年你们有什么期待的呢
Dialogue: 0,0:23:32.99,0:23:34.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 光子
Dialogue: 0,0:23:34.46,0:23:37.13,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}对我们而言明年是发射卫星的重要的一年
Dialogue: 0,0:23:37.13,0:23:41.77,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}我很看好光子 我认为这为整个行业解决了很多问题
Dialogue: 0,0:23:41.77,0:23:45.80,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}降低了人们把东西发射入轨的门槛
Dialogue: 0,0:23:45.80,0:23:49.90,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}科学 教育 商业企业
Dialogue: 0,0:23:49.90,0:23:54.40,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}(它能为这些领域的需求)解除烦恼
Dialogue: 0,0:23:55.20,0:23:58.48,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}明年对我们而言任务很重 (特别是)第一次的光子任务
Dialogue: 0,0:23:58.89,0:24:03.99,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}也许我们也会把东西送到月球
Dialogue: 0,0:24:03.99,0:24:04.46,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4}- 但愿如此
Dialogue: 0,0:24:04.46,0:24:05.42,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 我们走着瞧
Dialogue: 0,0:24:05.42,0:24:07.44,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 这会很了不起的 谢谢你给我这么多的时间 - 谢谢你 Tim
Dialogue: 0,0:24:07.44,0:24:09.75,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 同时祝贺你建设了这么一个新的发射场
Dialogue: 0,0:24:09.75,0:24:12.00,1080P-src-hans-sans-medi-75,,0,0,0,,{\blur4} - 谢谢你 Tim - 下次再见