PPRuNe Forums - View Single Post - Vmd implies equal form and induced drag

10th May 2010 | 18:56

#8 (permalink)

BEagle

Joined: May 1999

: ATP+Mil

Posts: 27,395

Likes: 857

From: Quite near 'An aerodrome somewhere in England'

It's blindingly obvious, by inspection, that the expression refers to a minimum!

However, for pedants, consider the second derivative:

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