Excessive altitude loss after take-off warning system for rotary

Details Excessive altitude loss after take-off warning system for rotary Excessive altitude loss after take-off warning system for rotary

1983-06-10

1989-04-04

Caldwell, Sr., John W.

Communications: electrical

Aircraft alarm or indicating systems

Flight alarm

340946, 340963, 364428, 364433, 244 1711, 244180, 244182, 73178H, 73178T, 342 65, G08B 2300

Patent

active

048189928

ABSTRACT:
A warning system for rotary wing aircraft compares the accumulated altitude loss after take-off of the aircraft with its altitude above ground, and generates a warning if the altitude loss is excessive for the altitude above ground at which the aircraft is flying. The position of the landing gear, the speed of the aircraft and its altitude enable the system only during the take-off and missed approach phases of operation in order to minimize nuisance warnings during other phases. The relationship between radio altitude and altitude loss required to generate a warning is optimized for rotary wing aircaft such as helicopters.

REFERENCES:
patent: 3946358 (1976-03-01), Bateman
patent: 3947808 (1976-03-01), Bateman
patent: 3947810 (1976-03-01), Bateman
patent: 4030065 (1977-06-01), Bateman
patent: 4293840 (1981-10-01), Hadari
patent: 4319218 (1982-03-01), Bateman

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