Hey, John, will you please explain to us dummies (okay, THIS dummy!) what difference it makes whether a car is doing 200+ in a drag race vs. 200+ in the standing mile and therefore why a drag chute isn't kosher for the 'mile? The aero on any given car is the same no matter which "race" situation it's in...and it's still stopping from 200+ in either case.
I'm not questioning the wisdom of what you said. I just don't grasp the reasoning BEHIND it - and I wanna.
Thanks. :thumbsup
One last thing, if you are going to build a car fast enough to need a parachute, please have your builder contact Bill Stroud so he can design you the right chute. Some guys are putting drag chutes on the back of their mile cars and I've seen them cause some cars to wreck when deployed. Not saying this is the case with what happened today at Goliad. I am not there and dont know anything about the car that crashed. But I have been to many other events and seen what a drag chute can do to a car that is not drag racing. If you are running mile events you need a land speed chute design which generally has a longer tether, smaller chute design and big ass spring that throws it a log ways behind the car when deployed. Bill Stroud is the man to talk to about your specific design.
The smaller chute and longer tether do not hit as hard (decel g's) as a drag setup. Also, when using a chute the driver should be full on the power when pulling the chute. That way the power and force of the car control the chute and the direction. If you lift off the power then deploy the chute it could pull you where you dont want to go.
Are you speaking of Stroud Safety? After seeing the events unfold first hand Saturday in Goliad, I want to make sure I have the correct guy.
Thanks,
Justin
I have to disagree about the full power when deploying the chute. In my drag car, I make sure my brakes are stable and the load is transfered off the rear before I pull the chutes. At 197, I pull negative 1.99 G acording to my racepak 300. That is with 2 chutes, as manated by the NHRA. I run a matching pair of chutes from stroud. Also, the method of deployment, (spring vs. air launch) should be considered. This assumes that your chute location and mounting in regards to the chassis loading is correct in the first place. If the chute caused the wreck, I would be suspect of proper mounting design.
Steve
No I think this was his first or second run Chip.
any way to put those together in a moving .gif?