See Also: Roof Flaps - Motor Sports(gambling)
Roof Flap(s) - Motor Sports(gambling)
Professional Sports Car Racing - Motor Sports(gambling)
surgical flaps(medicine)
World Sports Car - Motor Sports(gambling)
Blowed (Motor) - Motor Sports(gambling)
Blown Motor - Motor Sports(gambling)
Sports Car - Motor Sports(gambling)
Srp - Motor Sports(gambling)
O.H.C. - Motor Sports(gambling)

Roof Flaps - Motor Sports (gambling)


A set of trap doors in the roof of a Winston Cup or BGN car (ARCA also requires them at some tracks). The roofs of these cars, since they are usually shaped somewhat in profile like an airplane wing, tend to generate lift when the car gets sideways, and on a superspeedway, this lift can be strong enough to actually fly the car off the track surface. The roof flaps are designed to open under these circumstances and kill the lift, both by venting air pressure inside the cockpit, and by breaking up the airflow over the top of the roof