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' 12.5 X diameter radius, double ogival body '
Awesome video!
For supersonic flight, ruled by shockwave drag, the 'pointy' nose allowed for successful flight, once Volkswagen got the sheet metal thick enough to survive max-Q.
Translated to subsonic operation though, the nose would demonstrate a distinct disadvantage, drag-wise.
Then you'd desire the 'bulbous' nose ( forebody ), constituting the ichthyoid ( fishlike [ cod's head ] ) 33.3%, and 66.3% ( mackerel tail ) aft-body; and ideally, the l/d = 2.5 fineness ratio, in mirror image ground reflection.
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Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
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