Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Patent
1982-09-07
1984-07-31
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
244 87, B64C 2700
Patent
active
044625596
ABSTRACT:
A new means for controlling yaw or lateral movement of rotary wing aircraft that makes use of the entire tail section or fuselage of the aircraft. The tail section is comprised of a tail aileron, a rudder, and a trimming tab horizontally hinged to the aileron. The aileron is attached to a rotatable support boom which is supported by a plurality of fixed bushings and covered by a shroud. A pair of tail cables are attached to either side of the support boom and a pair of foot pedals within the cabin for controlling the direction and degree of pivot of the aileron. The rudder is vertically hinged to the rear of the aileron, and its pivotal movement is controlled by a pair of rudder cables attached to either side of the rudder and to the pedals within the cabin. Depression of the left or right pedal will cause the aileron and rudder to pivot to the left or right, respectively. The trimming tab is pivoted to the right or left by automatic control means independent of the aileron and rudder control mechanism. During flight, the down draft from the helicopter blade upon the aileron and trimming tab, and the wind from the forward motion of the helicopter upon the rudder, will cause the helicopter to move to the left or right as desired depending upon depression of the corresponding pedal.
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patent: 2386915 (1945-10-01), Spittler
patent: 2585468 (1952-02-01), Isacco
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patent: 2980364 (1961-04-01), Hohenemser
patent: 3034746 (1962-05-01), De Temple
patent: 3045950 (1962-07-01), Jennings, Jr.
patent: 3096953 (1963-07-01), Koump
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