Quote:
Originally Posted by ennored
NASA got pretty darn good results (on the order of .347 to .242 adding a tail to a rounded box) using a square truncated tail. I see no reason to think rounding your tail is going to make it suddenly "work" where a square one does not.
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I would want to interject some qualifiers into NASA's tail 'solution'.
1) The body that they constructed 'over' the original Ford Econoline van, had a complete belly pan
2) Their tail spanned the entire vertical body height.
3) And the tail incorporated a curved diffuser, which integrated seamlessly into the belly pan.
4) We'd want to note the 'length' of their tail, as a percentage of the bodies total length, 25.48%.