Variable threshold wind shear warning system

Details Variable threshold wind shear warning system Variable threshold wind shear warning system

1987-07-31

1989-08-08

Orsino, Joseph A.

Communications: electrical

Aircraft alarm or indicating systems

Flight alarm

244181, 340969, 364433, G08B 2300

Patent

active

048557382

ABSTRACT:
An improved wind shear warning system for aircraft. A wind shear signal representing wind shear as modified by the downdraft drift angle of the aircraft is used to provide a warning signal when the wind shear signal exceeds (negatively) a variable threshold. The threshold for the warning signal is modified in response to the pilot controlled excess of the airspeed of the aircraft over a reference airspeed during the approach to a landing so as to avoid unnecessary warnings. The threshold is further altered when the wind shear signal during approach indicates the high likelihood of a reversal of wind shear conditions.

REFERENCES:
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patent: 4012713 (1977-03-01), Greene et al.
patent: 4079905 (1978-03-01), Greene
patent: 4133503 (1979-01-01), Bliss
patent: 4281383 (1981-07-01), Lebrun
patent: 4413321 (1983-11-01), Lebrun
patent: 4530060 (1985-07-01), Greene
patent: 4725811 (1988-02-01), Muller et al.
patent: 4728951 (1988-03-01), Johnson et al.

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