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Old 12-15-2010, 08:47 AM   #307 (permalink)
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GasDwarf - '13 Volkswagen up! EcoFuel CNG
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Originally Posted by lunarhighway View Post
have you considdered experimenting with a dorsal fin?
Why would Jim consider adding area to the rear, while the centre of pressure is obviously still forward enough not to cause handling issues in sidewind conditions ?
A fin wouldn't cure an aft shift in CoP, it'd make it worse.

If not perfectly symmetrical to eliminate "lift", a vertical tail surface would add a permanent resultant sideways force working on the vehicle.

A fin also adds to the frontal area, and thus to the aerodynamic drag, the reduction of which is why the tail extension was built in the first place.
GasDwarf's fuel consumption :

Last edited by euromodder; 12-15-2010 at 09:42 AM..
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