Bensen Aircraft B8MG Gyrocopter
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"An autogyro is a type of rotorcraft invented by Juan de la Cierva in 1919, making its first successful
flight on January 9, 1923 at Cuatro Vientos Airfield in Madrid, Spain. Similar to helicopters, autogyros use a rotor to develop lift. While
a helicopter's rotor is rotated by an engine during normal flight, the rotor of an autogyro is driven by aerodynamic forces in autorotation.
An engine-powered propeller, similar to that of a fixed-wing aircraft, provides thrust for the autogyro.
Autogyros are also known as gyroplanes, gyrocopters, or rotaplanes. The term Autogiro was a trademark of the Cierva Autogiro Company and the term Gyrocopter was originally a trademark of Bensen Aircraft. An autogyro is characterized by a free-spinning rotor that turns due to passage of air upwards through the rotor. The vertical component of the total aerodynamic reaction of the rotor gives lift for the vehicle, and sustains the autogyro in the air. A separate propeller provides forward thrust and can be placed in a tractor configuration, with the engine and propeller at the front of the fuselage (e.g., Cierva), or pusher configuration with the engine and propeller at the rear of the fuselage (e.g., Bensen). |
Whereas a helicopter works by forcing the rotor blades through the air, pushing air downwards, the autogyro rotor blade generates lift in the same way as a glider's wing by changing the angle of the air as it moves upwards and backwards relative to the rotor blade. The free-spinning blades turn by autorotation; the rotor blades are angled so that they not only give lift, but the angle of the blades causes the lift to accelerate the blades' rotation rate, until the rotor turns at a stable speed with the drag and thrust forces in balance.Pitch control of the autogyro is by tilting the rotor fore and aft; roll control is by tilting the rotor laterally (side to side). Three designs to affect the tilt of the rotor are a tilting hub (Cierva), swashplate (Air & Space 18A), or servo-flaps (Kaman SAVER). A rudder provides yaw control. On pusher configuration autogyros, the rudder is placed in the propeller slipstream to maximize yaw control at low airspeed."
This information found: Wikipedia Encylopedia
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Susan Dietel
Gyrocopter, Autogyro for Sale, Information, History and Products, Manuals, Kits. Gyroplanes, Gyrocopters, or Rotaplanes are other
names for the Autogyro. Used Gyrocopters for Sale.
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