Vertical velocity indicator

Details Vertical velocity indicator Vertical velocity indicator

1993-08-27

1995-03-07

Teska, Kevin J.

Boots, shoes, and leggings

364434, 364435, 340945, G01C 2100

Patent

active

053964250

ABSTRACT:
A vertical velocity indicator for aircraft is described which comprises an inlet open to ambient static pressure; a pressure transducer communicating with the inlet for detecting changes in ambient static pressure and providing output signals corresponding to equilibrium with ambient pressure at level flight, a static pressure increase corresponding to rate of descent, and a static pressure decrease corresponding to rate of climb of the aircraft; a pitch gyroscope for detecting pitch of the aircraft and providing a corresponding output signal; a signal processor for the output signals from the pressure transducer and pitch gyroscope and a graphics generator operatively connected to a visual display of aircraft pitch and vertical velocity, the display including an aircraft silhouette defining aircraft pitch, and a color coded background and a preselected plurality of spaced level altitude lines which present preselected intervals of altitude and which move on the background at a rate corresponding to the rate of climb or descent of the aircraft, and a plurality of simulated cloud figures which move on the background with the lines for enhancing realism of the silhouette display and for minimizing reverse motion illusion associated with movement of the lines; and a digital display for presenting the numerical vertical velocity of the aircraft.

REFERENCES:
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patent: 3970829 (1976-07-01), Melvin
patent: 4040005 (1977-08-01), Melvin
patent: 4095271 (1978-06-01), Muller
patent: 4326189 (1982-04-01), Crane
patent: 4368517 (1983-01-01), Lovering
patent: 4539843 (1985-09-01), Wise
patent: 4845495 (1989-07-01), Bollard et al.
patent: 4860007 (1989-08-01), Konicke et al.
patent: 5001638 (1991-03-01), Zimmerman et al.
patent: 5250947 (1993-10-01), Worden et al.

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