Aircraft ground proximity warning system having speed versus alt

Details Aircraft ground proximity warning system having speed versus alt Aircraft ground proximity warning system having speed versus alt

1974-11-01

1976-03-16

Blix, Trygve M.

Communications: electrical

Selective

Having indication or alarm

73178R, 2351502, 244 77D, 343 7TA, 343112CA, 343112S, G01C 500

Patent

active

039449688

ABSTRACT:
The warning system includes a function generator for generating a signal representative of a minimum altitude over terrain as a function of the aircraft's speed. This signal is combined with a signal representing the aircraft's actual altitude over the terrain and if the aircraft is below this minimum altitude a warning signal is generated. A circuit is included to inhibit the warning signal, and thereby nuisance warnings, when the aircraft overflys another aircraft. In addition, electronic circuitry is disclosed for implementing the invention that is compatible with at least two separate types of air data computers.

REFERENCES:
patent: 2736878 (1956-02-01), Boyle, Jr.
patent: 3077557 (1963-02-01), Joline et al.
patent: 3245076 (1966-04-01), LeTilly et al.
patent: 3333795 (1967-08-01), Hattendorf et al.
patent: 3510090 (1970-05-01), Falkner et al.
patent: 3641323 (1972-02-01), Hughes et al.
patent: 3698669 (1972-10-01), Miller
patent: 3715718 (1973-02-01), Astengo
patent: 3774017 (1973-11-01), Zagalsky

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