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Old 09-16-2020, 02:38 PM   #31 (permalink)
aerohead
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d/L

Quote:
Originally Posted by Grant-53 View Post
The 5th edition does not list fineness in the index but does discuss d/l ratio. Since an automobile is not a body of rotation tapered to a point this is more applicable to aircraft. Compound curved panels are more costly to stamp than flat panels generally speaking. My interest is chiefly in body shells for commuter bicycles. Drag and stability are issues to be addressed.
*The inverse is the fineness ratio for the mirror image, what the air always
'sees'
* The convention is to take half, as a half-body,and loft up to whatever ground clearance is chosen.
* For bicycle stability, aeronautical engineer, Al Voight chose a trike for his Vector, which HUFFY purchased and sold for $10,000/ pop. Cd 0.11 was claimed.

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