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Just throwing this out there, but are the dimples because the ball spins, and the drag is reduced on the spining ball. A car doesnt spin hence no dimples... I dont know
does that design push the car closer to the floor to increase friction of the wheels to make it go faster, or does it push it upwards, like a plane, to reduce friction between the wheels to make it more fuel effecient?
Why are the bodies of racing cars not dimpled like golf balls to reduce drag ?
The spoilers on teh back of F1 cars are there to push the back down. This increases the friction between the tyres and the road surface thereby making enabling faster cornering and acceleration without wheel spin or slip.A few years ago the F1 cars had 'skirts' that reached down to the ground to take advantage of 'ground effect' to improve this even further. Unfortunately not every car maker was successful (particularly the French) and the F1 racing authorities (possibly French?) chose to rewrite the rules to forbid the use of the skirts.This means that F1 cars are now more prone to spinning off the track at speed; though I suspect that modern traction control systems have gone some way to offsetting the loss of skirts.NB: Famous BBC TV 'Horizon' episode covered this "Gentlemen, Lift Your Skirts!"; funny the things you remember...
Didnt they ban traction control systems in F1 ,could be wrong.ESP IS COOL THOUGHhttp://www.youtube.com/watch?v=K3m24bjkfg0
As you say, the skirts were great at keeping the cars stuck to the ground, but they tended to suck all the grit and gravel off the ground and spit it up at the car following - not so nice if you were following a car that was skirted.