crab: i recon the tail rotor would be the magor factor in the roll rate problem. the helicopter naturaly wants to tip over right with the main rotor turning clockwise.
nick: wouldnt the low bell tail rotor have more of a rolling moment than the high 76 one? (if the tail rotor was behind the main rotor, no rolling would take place).
and the pitching up you talk about i would put down as gyroscopic pressesion. with the disc spinning clockwise and right cyclic applied the disc would start tilting right and pressesion would advance the rolling movement in the direction of rotation (tending to a pitching up attitude) but the blades would feather because of the cyclic position leaving the disc at a aft of right rolling position. of cause as soon as the bank angle is reached and the roll rate stopped, the pressesion stops?
