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27th Apr 2012, 15:46

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achimha

Join Date: Dec 2011

Location: Stuttgart, Germany

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Not knowing anything at all about this but looking at this site...

Drag = thrust in steady straight flight

thrust = (shaft power * eff) / speed
eff = (thrust * speed) / shaft power

Now get the units right...

Last edited by achimha; 27th Apr 2012 at 15:57.

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