Re: Again :-] : Re: Again: origin of bird flight

["David Marjanovic" <david.marjanovic@gmx.at>]

> >At an average velocity of 5 mph & 7 mph for fractions of a second, it
don't
> >make much difference.<
> Hmm...speaking of mph, a few fellow list members and I have had a little
> problem with the V=.25g^.5*SL^1.67*H^-1.17 (speed formula).
> With a height of 3.9624 meters, a stride length of 9.144, I get a speed of
> 12.59 m/s, which, if I do the the math right, comes out as 45.32mph.
> However, other list members get much slower speeds (11.52 mph), using the
> same formula. I was wondering if anyone more familiar with calculating
speed
> knows what we(most likely I) are/am doing wrong.

Why stride length? I've calculated a simple free fall and got the same
results as HP Jim Cunningham...