Autorotation is a state of flight in which the main rotor system of a helicopter or other rotary-wing aircraft turns by the action of air moving up through...

For fixed-wing aircraft, autorotation is the tendency of an aircraft in or near a stall to roll spontaneously to the right or left, leading to a spin (a...

gyroplane, is a class of rotorcraft that uses an unpowered rotor in free autorotation to develop lift. A gyroplane "means a rotorcraft whose rotors are not...

axis traverse to the wind so that Magnus-effect lift obtains during autorotation; the electricity is generated with end-hub generators. The LTA Windpower...

uses an unpowered rotor, driven by aerodynamic forces in a state of autorotation to develop lift, and an engine-powered propeller, similar to that of...

because it may be impossible for the pilot to complete an emergency autorotation from a starting point within these regions. The H/V curve also contains...

In flight dynamics a spin is a special category of stall resulting in autorotation (uncommanded roll) about the aircraft's longitudinal axis and a shallow...

basic flight conditions for a helicopter: hover, forward flight and autorotation. Some pilots consider hovering the most challenging aspect of helicopter...

on a routine training flight. While making his second attempt at an autorotation with powered recovery, the aircraft was unable to recover power after...

from the engine so that the rotors can continue spinning and perform autorotation. Helicopter clutches are usually freewheel clutches relying on centrifugal...

which lose power do not simply fall out of the sky. In a maneuver called autorotation, the pilot configures the rotors to spin faster driven by the upward...

the pilot shut off the engine and initiated a power-off descent under autorotation from approximately 950 feet (290 m) above ground level; however, as the...

the R22 to enter autorotation and land in a controlled manner. Because the main rotor has very little mass and inertia, autorotation in an R22 requires...

passing through the body's own center of mass is known as a spin (or autorotation). In that case, the surface intersection of the internal spin axis can...

successfully utilize cyclic pitch, as well as pioneering the use of autorotation for the safe landing of a damaged helicopter. Pescara also set a world...

rotor Unpowered free flight (Free) balloon Glider Helicopter, etc. in autorotation (None – see note 2) Tethered (static or towed) Tethered balloon Kite...

rotor Unpowered free flight (Free) balloon Glider Helicopter, etc. in autorotation (None – see note 2) Tethered (static or towed) Tethered balloon Kite...

crashed near Piaseczno, just outside Warsaw. The pilot performed an autorotation landing in a forest following the failure of both engines. The helicopter...

dangerous tendency to go into a spin. Early production C.200 aircraft showed autorotation problems similar to those found in the Fiat G.50 Freccia, IMAM Ro.51...

simplicity; this means, however, that in the event of engine failure autorotation is impossible. Usually, a ballistic parachute would be incorporated for...

referred to as "gyrodyne", between a rotaplane (with the rotor free for autorotation and an upward total axial flow through the rotor disc), on the one hand...

continue rotating faster than the engine so that the helicopter can enter autorotation. A sprag clutch is used in the electric starter motors of modern motorcycle...

evaluated its cost per flight hour at $23,941. While technically capable of autorotation if both engines fail in helicopter mode, a safe landing is difficult...

rotor Unpowered free flight (Free) balloon Glider Helicopter, etc. in autorotation (None – see note 2) Tethered (static or towed) Tethered balloon Kite...

propel through water. Wing forms in nature Winged tree seeds that cause autorotation in descent A laughing gull, exhibiting the "gull wing" outline. Bat in...

rotor Unpowered free flight (Free) balloon Glider Helicopter, etc. in autorotation (None – see note 2) Tethered (static or towed) Tethered balloon Kite...

rotor Unpowered free flight (Free) balloon Glider Helicopter, etc. in autorotation (None – see note 2) Tethered (static or towed) Tethered balloon Kite...

flights due to safety reasons. Another important feature of autogyro is an autorotation safety mode that enables a controlled (slow) descent even in the event...

reach flying speed was necessary, while tilting the rotor to establish autorotation. Another approach was to tilt the tail stabiliser to deflect engine slipstream...

Bristow Helicopters Flight 56C, forcing the crew to perform an emergency autorotation to a ditching in the sea. Despite the rough sea conditions, the 16 oil...