Originally Posted by
Lonewolf_50
@John D
I have been told that the cutting edge bearingless rotors (Bell Viper/Venom) required that the design and test teams had to keep an eye on flapping during test and development, but do not have personal experience in that program.
It is not unusual for an instrumented head to provide "flap" angle when developing a rotor system. I've not often seen this fed as a direct instrument to the pilot and I've never seen "coning" angle as a specific monitored value. I was interested to see if anyone on here had.
Crab, shame that Apache didn't have any flotation gear fitted.