System for providing an indication of wind shear

Details System for providing an indication of wind shear System for providing an indication of wind shear

G - Physics

01

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354/18

G01C 5/00 (2006.01) G01P 3/02 (2006.01) G01P 13/02 (2006.01) G05D 1/06 (2006.01) G06G 7/78 (2006.01)

Patent

CA 1128661

Abstract of the Disclosure The output of a transducer providing a signal representing the instantaneous airspeed of an aircraft is differentiated and fed to a summing device. Also fed to the summing device are a signal representing the horizontal acceleration of the aircraft which is subtracted from the instantaneous airspeed signal, and a signal in accordance with the downdraft drift angle of the aircraft which is added to the instantaneous airspeed signal. The output of the summing device represents the magnitude of the wind shear condition (rate of change of wind velocity) as modified by a downdraft drift angle signal. This output signal is fed to appropriate indicator apparatus which may comprise an appropriate display, a peak magnitude storage device, a warning device indicating a dangerous wind condition and/or a telemetering device providing a reading to a ground station for use in advising other aircraft.

296594

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