Term
Power Failure Below 8 feet AGL |
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Definition
- Apply right pedal
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Allow aircraft to settle
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Raise collective just before touchdown to cushion landing.
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Term
What is the configuration for Max glide distance? |
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Definition
- Airspeed aprox. 75 KIAS.
- Rotor RPM aprox. 90%.
- Best glide ratio is aprox. 4:1 or one nautical mile per 1500 feet AGL.
CAUTION: Increase rotor RPM to 97% minimum when autorotating below 500 feet AGL. |
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Term
What is the air restart procedure? |
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Definition
- Mixture - full rich
- Primer (if installed) - down and locked.
- Throttle - closed, then cracked slightly.
- Actuate starter with left hand.
CAUTION: Do not attempt restart if engine malfunction is suspected or before safe autorotation is established. |
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Term
What is the procedure for power failure above 500 feet AGL? |
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Definition
- Lower collective immediately to maintain RPM and enter normal autorotation.
- Establish a steady glide at approximately 65 KIAS.
- Adjust collective to keep RPM in green arc or apply full down collective if light weight prevents attaining above 97%.
- Select landing spot and, if altitude permits, maneuver so landing will be into wind.
- A restart may be attempted at pilot's discretion if sufficient time is available.
- If unable to restart, turn off unnecessary switches and shut off fuel.
- At about 40 feet AGL, begin cyclic flare to reduce rate of descent and forward speed.
- At about 8 feet AGL, apply forward cyclic to level ship and raise collective just before touchdown to cushion landing. Touc down in level attitude with nose straight ahead.
Note: If power failure occurs at night, do not turn on landing lights above 1000 feet AGL to preserve battery power. |
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Term
What is procedure for power failure between 8 feet and 500 feet AGL? |
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Definition
- Takeoff operation should be conducted per the Height-Velocity Diagram.
- If power failure occurs, lower collective immediately to maintain rotor RPM.
- Adjust collective to keep RPM in green arc or apply full down collective if light weight prevents attaining above 97%.
- Maintain airspeed until ground is approached, then begin cyclic flare to reduce rate of descent and forward speed.
- At about 8 feet AGL, apply forward cyclic to level ship and raise collective just before touchdown to cushion landing. Touch down with skids level and nose straight ahead.
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Term
What is the best airspeed for max glide distance? |
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Definition
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Term
What is the best rotor RPM for max glide distance? |
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Definition
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Term
What is the glide ratio in max glide configuration? |
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Definition
4:1 or one nautical mile per 1500 feet AGL |
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Term
What does land immediately mean? |
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Definition
Land on the nearest clear area where a safe normal landing can be performed. Be prepared to enter autorotation during the approach, if required. |
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Term
What does land as soon as practical mean? |
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Definition
Land at the nearest airport or other facility where emergency maintenance may be performed. |
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Term
What can cause a power failure? |
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Definition
Engine or drive system failure. |
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Term
What is an indication of power failure? |
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Definition
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Term
What are some indications of engine failure? |
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Definition
Change in noise level, nose left yaw, oil pressure light or decreasing engine RPM. |
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Term
What are some indications of drive system failure? |
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Definition
Unusual noise or vibration, nose right or left yaw, or decreasing rotor RPM while engine RPM is increasing. |
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