Bob
If you know the Cd and the square ft. of the chute standard the formula for
drag :
(Cd x .002 [air density at Bonneville] x ft/sec squared x sq. ft. x .5)
tells you the drag at any given speed
Adding the drag of the car and dividing by the car wt gives the Gs .
I'm shure Bob Stroud knows the sq ft and Cd of all his chuted off the top of
his head .
> I'd like to advance a subject that's not often considered in this sport,
> namely braking a vehicle. Basically, is there a formula that considers
> speed,
> weight, a drag chute, CD, Tires, etc., and obviously surface to determine
> a
> safe distance? Obviously the best answer will be actual experience on the
> track
> of choice, but I observed the NHRA shut down areas and see how fast the
> Top
> Fuelers and Funnies stop, considering their speed, but this has to do
> with
> BHP available, I'd assume.
> Mayf, single syllable words, please.
> Bob W
_______________________________________________
Land-speed mailing list
http://autox.team.net/mailman/listinfo/land-speed
|