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Typically, the control stick is termed the cyclic and tilts the rotor in the desired direction to provide pitch and roll control (some autogyros do not tilt the rotor relative to the airframe, or only do so in one dimension, and have conventional control surfaces to vary the remaining degrees of freedom). The rudder pedals provide yaw control ...
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 the rotor, as with an autogyro, rather than engine power driving the rotor.
A vehicle can perform controlled descent using the anti-lock braking system (ABS) and in some cases engine braking. [1] [2] If a vehicle accelerates under the force of gravity, the system will automatically apply brakes to slow down to the desired vehicle speed. Cruise control buttons can adjust the speed on some vehicles. [2]
In May 1968 a B-8 and B-8M were studied by the USAF under the Discretionary Descent Vehicle (DDV) program as the X-25B and X-25A respectively. In this scheme, it was proposed to integrate combat aircraft ejection seats with a small autogyro or rotor kite to allow downed pilots more control over their post-ejection landing spot. The X-25A and X ...
The first United States autogyro to dispense with these was the PA-22, which the pilot manoeuvred by altering the rotor plane with a long hanging stick which reached down into the cabin; such designs were termed direct control autogyros. Direct control meant the aircraft could be controlled at the lowest speed at which sufficient lift was ...
Interest in the auto-gyro by the USN resulted in the purchase of two Pitcairn PCA-2 autogyros, modified as two-seat observation platforms, designated XOP-1. Trials with the XOP-1s from 1931 had limited success, but included an operational deployment in Nicaragua from June 1932, with the United States Marine Corps (USMC).
Instead, control was by the ailerons, elevators and rudder via a conventional column, a system that only worked effectively when the airspeed was high enough. A major engineering refinement in the C.19 was the means to mechanically start the main rotor spinning; in earlier de la Cierva designs, the rotor had to be turned by hand or by pulling a ...
The first production direct control autogyro was the C.30, produced in quantity by Avro, Liore et Olivier, and Focke-Wulf. This machine allowed for change of motion in any direction – upwards, downwards or sideways – by the tilting of the horizontal rotors and also effected a minimising of some of controls used in more conventional aircraft ...