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Old 04-24-2011, 07:34 PM
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Furio Furio is offline
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Quote:
Originally Posted by Gryphon_ View Post
but when airspeed falls and AoA increases that big wing should produce a lot more drag than it does. But the Spitfire seems to retain energy very well, and pulls off high AoA turns that no other aircraft can follow.
This sounds obscure to me. As far as I know, there’s no reason a “big wing” should produce more drag in a turn than a small one.
As a rule of thumb, you look at wing loading (Kgs x square metres, or lbs x square feet) to evaluate stalling speed, but you must look at span loading (Kgs x metre, linear, not square) to evaluate efficiency and low drag in a turn.

My feeling is that Spit FM is pretty good, and that we should look with suspicion at our feelings without hard numbers.