"..as to the low side flip, air gets under the car and..."
It happens from the front, too. Back in the days of the original Can-Am
series, the very powerful, fast, lightweight cars had unprecidented
performance and a new phenomenon surfaced... under hard acceleration, those
mid-engine cars had so much traction (60% rear weight bias and BIG stickey
tires) and torque (mostly aluminum BIG- block Chevys) that they could raise
the nose of the car (wheelie). When this happened at high speed, that was
enough to suddenly go from aerodynamic downforce on the nose to lots of
lift-- and voila! up the nose came and the whole car flipped over backwards!
The first one to find out about this was a British driver named Hugh Dibbley
(sp?). He got on the throttle hard just as his car reached the crest of a
hill and the result of that created the phrase "he did a Dibbley"
Just a tidbit of info from the past.
Regards, Neil Tucson, AZ
-----Original Message-----
From: DrMayf [mailto:drmayf@teknett.com]
Sent: Wednesday, August 21, 2002 7:45 AM
To: Dave Seely; W S Potter; Dan Warner; land speed
Subject: Re: Trucks & roof rails
No cheating from me! Don't have a pickup...as to the low side flip, air gets
under the car and...the roof rails and flaps on the roof are to discourage
the air over thep, preventing it from becoming an airfoil. If you look at
an installation, one is straight and one is at an angle. DOn't know about
the trucks...but as to the bed, I would require them on the tonneau also.
Small price to pay and no help for speed.
mayf
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