Subject: [FlyRotary]
Re: 11th test flight
"Just
as speed increases at as the cube root of hp, so does it decrease as the cube
root of drag."
Al,
shouldn't that be: so does it decrease as the drag CUBED? No guarantee's,
but from memory (poor), I thought this would be closer.
Bob
Darrah
Bob;
Only if you are looking at it upside
downJ. The speed changes as the cube root of the hp or the drag;
one directly and the other inversely. If you start with the speed, you cube the
ratio of the speed to get the change in drag. So if the speed drops for 135 to
125; 135/125 = 1.08. 1.08 cubed is 1.26. Drag has gone up 26%.
Unless I have it wrong . . .
Al