Aircraft excessive descent rate warning system

Details Aircraft excessive descent rate warning system Aircraft excessive descent rate warning system

1978-02-09

1980-07-29

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

73178R, 244180, 343 7TA, 364433, G01C 500, G01S 904

Patent

active

042153344

ABSTRACT:
In an aircraft excessive rate of descent warning system that utilizes barometric descent rate compared with aircraft altitude above ground to generate a warning, nuisance warnings at airports having terrain that slopes generally downwardly towards the runway can be substantially reduced by modifying either the descent rate signal or the altitude above ground signal as a function of radio altitude rate thereby having the effect of increasing the descent rate required to trigger a warning when the aircraft is descending essentially parallel to the ground.

REFERENCES:
patent: 3715718 (1973-02-01), Astengo
patent: 3947808 (1976-03-01), Bateman
patent: 3958218 (1976-05-01), Bateman
patent: 3958219 (1976-05-01), Bateman et al.
patent: 4016565 (1977-04-01), Walker
patent: 4060793 (1977-11-01), Bateman
patent: 4071894 (1978-01-01), Schuldt

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