Peter,
It takes alot of forward speed to complete a hard-banked turn, fly forward at a high rate of speed, decide which direction your gonna turn, roll cyclic quickly left or right, when the heli rolls 90 degrees, pull back on the cyclic & throttle up (hard-bank), then quicky roll the cyclic back so the heli is level again. If you forget to throttle up or give back cyclic during the hard-bank, the rotors will lose headspeed & you'll fall.

Cat samich,
No, there is no active tail motor on a Big Lama, it's just for looks, spins when it wants too.

Shadow