Originally Posted by
Non-PC Plod
Agree - it would be interesting to see if that was even worse than having zero rotor thrust -Just wondering whether you can get negative pitch on the tail rotor at extreme pedal inputs?
Yes, of course you can get negative pitch! Any helicopter has to be able to turn in both directions, both at high power and in autorotation. As I stated a long way back in this thread, the tail rotor of a Puma helicopter, as one example, can go between +35 degrees to -17 degrees of pitch.
That is why a tail rotor control failure can be far worse than a tail rotor drive failure.