Definitions for "Autorotation"
When a helicopter loses power mid-flight, a pilot may nevertheless land the craft safely by causing the rotor blades to spin freely in the wind. By changing the pitch of the rotor blades to a negative angle, wind rushing through the rotor system as the helicopter descends will cause the rotors to speed up. As the helicopter approaches the ground, the pilot "feeds in" positive pitch gradually to create lift and slow the descent. Positive pitch drains the rotational energy stored in the rotor system so a pilot has only ONE chance to successfully perform an autorotation maneuver. Report this Word See also: Dead Stick Added by: mkranitz
A helicopter flight condition in which the lifting rotor is driven entirely by action of air when the helicopter is in motion.
Rapid power-off descent in a helicopter, reduced immediately before touch-down by