Aeronautics and astronautics – Aircraft structure – Fuselage and body construction
Patent
1985-11-29
1987-01-06
Barefoot, Galen
Aeronautics and astronautics
Aircraft structure
Fuselage and body construction
297DIG3, 297284, B64D 2504
Patent
active
046340831
ABSTRACT:
A system for counteracting the effect of helicopter vibrations on a seat in the helicopter which seat includes a plurality of controllable air cells includes a means for varying the pressure of the cells and transducer means for sensing cell pressure and vibrations and for providing electrical signals representative thereof. Control means provide signals for controlling the means for varying and processing means process the electrical signals and provide driving signals for driving the control means. A processing means converts the electrical signals to provide driving signals which drive the control means to control the means for varying so as to counteract the changes in pressure in the air cells due to vibrations to eliminate or reduce the changes in pressure with this system, the pilot is isolated from the helicopter compared with prior art systems where the seat is isolated from the helicopter.
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Barefoot Galen
CAE Electronics Ltd.
Fiorito Lynn M.
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