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Old 06-03-2012, 05:12 PM   #26 (permalink)
DoubleCH
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Yeah, luckily it didn't happen when I was flying hard and high. Regarding headspeed vs pitch, it depends. Besides lower pitch requirement, high headspeed means more cyclic power and more pop by trading in flight time. Blade/prop starts to lose efficiency beyond an angle of attack not RPM. I could be wrong but from all my testings with main and tail blade pitch, I find 11 degrees the most angle of attack I like to run before efficiency starts to drop exponentially. Of course with a curved tail blade you can run higher pitch on the trailing edge from the curvature, but the leading edge is still best at 11 degrees.
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