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Old 12th October 2006 | 14:14
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Tweedles
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From: USA
Mr. Lappos,

I too am wondering about the option of flying away from the TR failure.

Earlier you stated "...he saw that the rotation rate was not unmanageable."

What made it so? Is the lowering of collective, and therefore torque, the key to keeping the yaw rate manageable? I would have expected a helicopter in a high power required HOGE to start yawing very rapidly and almost immediatley become unmanageable.

In cruise flight I understand that the fuselage will streamline with a degree of sidelsip and roll. A run-on landing and/or autorotation (depending on type) are then your two available options. Somewhere between cruise and hover my little mind is telling me that I might be able to reduce collective and spiral to attain the streamlining effect, altitude permitting.

Would the rule-of-thumb be that one would initiate a descent (with rotation)and a hovering auto once the helicopter has begun swapping ends? Or is there any merit in attempting to sweep the cyclic while trying to attain enough forward airspeed for it to streamline?

My RFM only states to execute a hovering auto if TR thrust is lost while hovering.

Thank you for your time. Your willingness to share your knowledge is much appreciated.

Todd
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