Ah, the Blackhawk Helo has things called Bifilars near the rotor hub at the root of each blade. I guess they are doing a similar thing. They sit loose and 'wobble' as the main rotor turns.
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Ah, the Blackhawk Helo has things called Bifilars near the rotor hub at the root of each blade. I guess they are doing a similar thing. They sit loose and 'wobble' as the main rotor turns.