Aeronautics and astronautics – Aircraft structure – Fuel supply
Patent
1977-10-05
1979-04-24
Blix, Trygve M.
Aeronautics and astronautics
Aircraft structure
Fuel supply
74471XY, 244 83E, 74491, 244 85, B64D 3700
Patent
active
041508033
ABSTRACT:
A two axis controller for controlling a tanker aircraft in-flight refueling boom while maneuvering prior to engagement with the receiver aircraft and including a boom load alleviation system after engagement. Movement of the control stick is transmitted mechanically to a position transducer. The transducer provides a signal to an actuator to effect boom control. The transducer output is also transmitted to a servo motor which is mechanically connected to the control stick. During the free flight mode, when the operator is manually controlling the boom, the servo motor provides a resisting force to stick movement that varies as a function of the transducer signal. Following coupling of the two airplanes, which initiates the automatic load alleviation system, the same servo motor back drives the control stick in response to boom force and position signals to alleviate boom forces. Manual override of the automatic system is possible at any time.
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Blix Trygve M.
Eisenzopf Reinhard J.
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