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3 Cards in this Set
- Front
- Back
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Complete loss of tail rotor thrust |
a. This situation involves a break in the drive system, such as a severed driveshaft, causing the tail rotor to lose power. b. Indications: 1. Pedal input has no effect on helicopter trim. 2. Nose of the helicopter turns to right (left sideslip). 3. Left roll of fuselage along the longitudinal axis. C. Procedures: 1. If safe landing area is not immediately available, continue powered flight to suitable landing area at or above minimum rate of descent autorotational airspeed. 2. When landing area is reached, make an autorotational landing (THROTTLE CLOSED). 3. Use airspeed above minimum rate of descent airspeed. |
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Complete loss of tail rotor thrust warning |
Degree of roll and side-slip may be varied by varying throttle and/or collective. (At airspeeds below approximately 50 knots, the side-slip may become uncontrollable, and the helicopter will begin to spin on the vertical axis.) |
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Complete loss of tail rotor thrust NOTE |
Airflow around the vertical fin may permit controlled flight at low power levels and sufficient airspeed when a suitable landing site is not available; however, the touchdown shall be accomplished with the throttle in the full closed position |
