Communications: electrical – Aircraft alarm or indicating systems – Flight alarm
Patent
1984-07-11
1990-12-25
Orsino, Joseph A.
Communications: electrical
Aircraft alarm or indicating systems
Flight alarm
73178H, 244 1711, 340946, 340963, 342 65, 364433, G08B 2100
Patent
active
049806840
ABSTRACT:
A warning system for rotary wing aircraft that monitors the altitude above ground of the aircraft and issues a warning when there is insufficient terrain clearance. The warning criteria are optimized for rotary wing aircraft and are altered as a function of landing gear position and airspeed. Two distinct warnings are given. One indicates insufficient terrain clearance and the other warns the pilot if he attempts to land with the landing gear up. Logic circuitry is provided to modify the criteria necessary to generate a warning, and to inhibit certain warnings, as required by the mode of operation of the aircraft.
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Glover John H.
Paterson Noel S.
Orsino Joseph A.
Sundstrand Data Controls, Inc.
Swarthart Brent A.
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