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Autorotation (ÀÚµ¿È¸Àü)
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÷ºÎµÈ ±×¸²ÆÄÀÏÀº Ç︮ÄßÅÍ ºñÇà¿ø¸®¿¡ ´ëÇÑ Training book ³»¿ëÁß Autorotation °üÇÑ ³»¿ëÀÌ°í,
¾Æ·¡ÀÇ ²¿ºÎ¶û ³«¼´Â ½ÇÁ¦ Ç︮ÄßÅÍ ºñÇà±³¹ü¿¡¼ ¹ßÃëÇß½À´Ï´Ù.
ENGINE FAILURE AND AUTOROTATION
NOTE
Rotor RPM maintained at the high end of the
operating range will provide maximum rotor
energy to accomplish the landing.
Collective pitch control - Adjust as required to maintain rotor
RPM, 90% to 107%.
NOTE
Avoid large forward cyclic inputs until
collective is full down and rotor decay has ceased.
Cyclic control - Adjust to obtain desired autorotative airspeed for
existing conditions. Normal autorotation airspeed is 70 MPH (61
knots) IAS.
AIRSPEED for Minimum Rate of Descent is 60 MPH (52 knots)
IAS.
AIRSPEED for Maximum Glide Distance is 80 MPH (69 knots)
IAS.
Maximum airspeed for steady autorotation is 115 MPH (100
knots) IAS. Autorotation above this speed results in high rates of
descent and low rotor speed. A blue radial is installed on the
airspeed indicator as a reminder of this condition.
If ample altitude remains, attempt Engine Air start.
At low altitude, close throttle and flare to lose excessive airspeed.
Apply collective pitch as flare effect decreases to further
reduce forward speed and cushion landing. It is recommended
that level touchdown be made prior to passing through 70%
rotor RPM. Upon ground contact, collective pitch shall be
reduced smoothly while maintaining cyclic in neutral or
centered position.
NOTE
Excessive ground run with collective up, or
any tendency to float for long distance prior
to ground contact should be avoided.
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