Helicopter low-g monitor, recorder and warning system

Details Helicopter low-g monitor, recorder and warning system Helicopter low-g monitor, recorder and warning system

1986-08-19

1988-08-09

Lall, Parshotam S.

Boots, shoes, and leggings

364424, 73178H, 340963, G06G 748, G08B 2300, G01C 2100

Patent

active

047632852

ABSTRACT:
When helicopters are accomplishing certain special maneuvers such as powered descent, or the like involving low "g" conditions, the helicopter blades may teeter excessively with respect to the mast, and under severe conditions, the mast may shear. To sense such low "g" conditions, which may be dangerous, an accelerometer is mounted on the helicopter frame close to the center of gravity of the helicopter and is coupled to data processing circuitry which classifies the low-g conditions in bands or levels of severity, recording the duration of exceedances in which the low-g conditions are below predetermined levels, and issues warning signals to the helicopter pilot through the helicopter intercom system and a suitable warning light.

REFERENCES:
patent: 4115755 (1978-09-01), Cotton
patent: 4258421 (1981-03-01), Juhasz et al.
patent: 4300200 (1981-11-01), Doe
patent: 4382283 (1983-04-01), Clelford et al.

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