Quote:
Originally Posted by LuckyKid
I thought that if the back of the rear tire is enclosed that it creates drag. Maybe I could leave a cavity behind the tire but extend the rear quarter panel downward?
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Enclosing will definitely reduce drag if the panels are boat-tailed, when viewed from above, however, you will lose the drogue effect of the exposed wheels, affecting high-speed stability. This has been known since before 1940.
Historically, if the rulebook allows, the body will be streamlined as much as possible, then 'sail' area will be added for directional stability, of which will be partly supplied by the paneling.