Aircraft display devices

Details Aircraft display devices Aircraft display devices

1984-11-07

1986-12-02

Rowland, James L.

Communications: electrical

Aircraft alarm or indicating systems

Nonalarm flight indicator

73178R, 340784, 340971, 340973, 340974, 434 51, G01C 2100, G01C 2300

Patent

active

046268510

ABSTRACT:
An aircraft attitude display device comprising: a circular array of radially extending selectively activatable display elements (5), the radially inner ends of which constitute a boundary defining a central space; within the said central space, a fixed aircraft symbol (7); and means for selectively activating the said display elements in accordance with aircraft attitude so that the selected display elements form a visible pattern, e.g. a sector of the array, bearing a geometrical relationship with respect to the aircraft symbol indicative of the aircraft attitude.
The device is suitable for implementation using liquid crystal display technology to give a stand-by display of aircraft pitch and roll which is readily understandable by pilots since it is similar to the display given by conventional rolling ball action aircraft attitude instruments.

REFERENCES:
patent: 2823378 (1958-02-01), Reedy et al.
patent: 3018661 (1962-01-01), Meredith et al.
patent: 3337845 (1967-08-01), Hart
patent: 4198810 (1980-04-01), Fahrenschou
patent: 4247843 (1981-01-01), Miller et al.
patent: 4371870 (1983-02-01), Biferno
patent: 4463355 (1984-07-01), Schultz et al.

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