>>1850799It sounds counter intuitive because that's nonsense.
1)having more blades wouldn't stop mast bumping. Fully articulated rotors flap up and down just as much as teethering rotors, the difference is that they also have a extra joint that allows individual blades to also go back and forwards, but 2 blade rotor systems don't need that. Rigid rotors would not suffer this problem because as the name implies, they don't move as much.
2) the reason mechanical stops are not used in flight (there are autogyros that actually have them to be able to taxi without flapping blades) is not because they would make the problem worse. The real issue is that the blades hitting a hard stop while in motion would make the helicopter either pitch or bank violently, for an equally disastrous result. However robinson could engineer a specialized damper to smoothly slow down excessive flapping, but that would make more expensive, require more maintence to make sure it behaves properly and wouldn't completely prevent the issue. One other option would be to increase the rotor height, but that would make the r22 too big.
It's not like it's a big as fiasco as having rotor blades so light they made autorotation near impossible (i'm amazed all helicopters don't shift the collective automatically when the engine stops driving the rotor, but that's a side note).
Besides, the real chad solution to mast bumping is not having a tail rotor in the first place.
