PPRuNe Forums - View Single Post - Police helicopter crashes onto Glasgow pub
Old 15th Jan 2014, 08:13
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ShyTorque

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If a pilot had completely lost control of a rapidly yawing / rolling / pitching aircraft, which had gone below its critical Nr, it's more than likely he would become disorientated. It's possible in this state that his last action might be to secure both engines in an attempt to recover things. It might not be possible to recover at all.

I mentioned critical Nr. It's worth bearing in mind that an aircraft yawing, from an uncontrolled torque reaction, has also lost effective rotor rpm, to perhaps a surprising and critical degree. One rotation in yaw per second = 60 main rotor RPM.
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