Excessive sink rate warning system for aircraft

Details Excessive sink rate warning system for aircraft Excessive sink rate warning system for aircraft

1976-07-19

1977-11-29

Kunin, Stephen G.

Communications: electrical

Selective

Having indication or alarm

244180, 343 7TA, 343112CA, G01C 500

Patent

active

040607933

ABSTRACT:
In an aircraft ground proximity warning system that compares the rate of descent of an aircraft with its altitude above the terrain and in response thereto generates a warning signal when the aircraft's sink rate exceeds a predetermined limit for a particular altitude, a first type of advisory voice warning is generated for combinations of lesser descent rates and greater altitudes and a second type of imperative voice warning is generated for greater sink rates at lower altitudes where the danger of the aircraft impact with the terrain is more significant. In addition, the repetition rate of the advisory warning is increased as a function of increasing descent rate and the amplitude of the advisory warning can similarly be increased as function of increasing descent rate in order to call attention to an increasing undesirable operating condition.

REFERENCES:
patent: 3925751 (1975-12-01), Bateman et al.
patent: 3947808 (1976-03-01), Bateman
The Sundstrand Ground Proximity Warning System, Advertising Circular, Sundstrand Data Control, Inc., 13-475.

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