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Old 06-09-2022, 11:01 AM   #41 (permalink)
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Yes! It's the 'elongation' Wolf H. Hucho spoke of in 1987. ' when vehicles developed for the lowest drag coefficient are evaluated for Cd vs length, the correlation is discerned and expected trend is in fact confirmed.' 2nd-Ed page-202.
' the drag reduction from an elongated tail varies almost linearly with the reduction in cross section area.
'PhD Jeff Howell et al, SAE Paper 2020-01-0673.

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