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Message ID: 16046
Date: Mon Mar 13 21:41:14 GMT 2000
Author: Adam Wasserman
Subject: RE: [eqbards] The view from the sky (Plane of)...
On Mon, 13 Mar 2000, Reeves, Patrick W wrote:
>
> But John, what is the air speed of an unlaiden swallow? lol :p
> -------------------------------------------------
> Rokenn Swiftsong - Karana server
Drag on a body in a fluid is:
D = Cd*pi*r^2*rho*Vo^2
Cd = coefficient of drag of the swallow
pi = 3.1415...
r = radius of bird cross-section (approximating as a circle)
rho = viscosity of air
Vo = velocity
For steady state flight, D (drag) = T (thrust), so:
Vo = sqrt(T/Cd*pi*r^2*rho)
--
John H. Kim
kim@...
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