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Old 8th Nov 2013, 18:18
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zeja
 
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Question about teetering rotors

Hello everyone,

I am a young research who is doing some numerical simulation of helicopter rotor blades.
Nowadays, I am computing the two blades AH-1G. It is a teetering rotor.
I need for my simulations to know the flapping mode of the helicopter for given flow conditions:
betha=betha0+A*cos(azi)+B*sin(azi)
I have the values of the A and B from the experiments of the helicopter but there is no data of betha0 (cone angle).
I may be wrong, but since it is a teetering rotor, is this betha0 (cone angle) the same as pre-cone angle?

Hope somebody can help me. Thanks in advance
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