Quote:
Originally Posted by winkosmosis
You're assuming a bubble is just as aerodynamic as metal. Following that reasoning, why put a boattail on a car when a bubble forms back there in the shape of a boattail anyway?
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(1) the bubble IS as aerodynamic as metal.That's the point.
(2) a bubble does not form behind a vehicle in the form of a boat-tail unless you're talking about the last 15% of the 'Template' which is superflous anyway do to ground clearance.
Hucho made a grave contextual error when referring to Lay's wind tunnel research and the drag reducing contribution of the tail.
Kamm's comments MUST be taken in context as to the value of a tail
Ditto Fachsenfeld
Ditto Korff
Ditto Alberto Morelli ( he removed only 16% from the back of the CNR banana car,not 50% as inferred in some articles concerning the K-form).
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If you add out to 70% boat tail,based on the 'Template' you can expect no appreciable drag penalty.The air WILL pass over a phantom tail area from 70% rearwards.