Horizontal speed indicator for rotary-wing aircraft

Details Horizontal speed indicator for rotary-wing aircraft Horizontal speed indicator for rotary-wing aircraft

1997-06-20

1999-09-14

Williams, Hezron

Measuring and testing

Navigation

Take-off and landing monitors

73178T, 116 37, 116DIG43, 33351, G01C 2100, G01D 700

Patent

active

059525703

ABSTRACT:
A horizontal speed indicator for a rotary-wing aircraft includes first and second sensors for determining, respectively, the heading and the horizontal speed of the aircraft. The indicator processes the signals delivered by the first and second sensors, and displays the processed signals on a screen, which includes a compass rose which can rotate when the aircraft alters its heading, and a scale which represents the horizontal speed of the aircraft. The scale includes cross wires and concentric circles, and is capable of moving with respect to the compass rose.

REFERENCES:
patent: 3048836 (1962-08-01), Guarino et al.
patent: 4044709 (1977-08-01), Green
patent: 4170132 (1979-10-01), Serley
patent: 4297673 (1981-10-01), Green
patent: 4326189 (1982-04-01), Crane
Sheldon, et al. "The IntraFormation Positioning System," Conf. on Enhanced and Synthetic Vision Apr. 8-10, 1996, Orlando, FL, US; SPIE-Int'l Society for Optical Engineering, vol. 2736, 1996, pp. 176-182.

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