Aircraft terrain closure warning system with descent rate...

Details Aircraft terrain closure warning system with descent rate... Aircraft terrain closure warning system with descent rate...

G - Physics

08

B

343/15, 354/18

G08B 23/00 (2006.01) G01C 5/00 (2006.01) G01C 21/00 (2006.01)

Patent

CA 1243118

AIRCRAFT TERRAIN CLOSURE WARNING SYSTEM WITH DESCENT RATE BASED ENVELOPE MODIFICATION Abstract of the Disclosure Aircraft ground proximity warning systems that provide the pilot with a warning in the event that the closure rate with terrain is too high have the problem that when such systems are used in air- craft that are intentionally flown at high descent rates, such as occur in dives, nuisance warnings can occur. In order to minimize the problem, the criteria necessary to generate a terrain closure warning are modified as a function of the descent rate of the aircraft (12, 14, 30, 40, 42, 44) to prevent the closure rates encountered as a result of high descent rates from generating nuisance warnings.

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