Omnidirectional speed cockpit display

Details Omnidirectional speed cockpit display Omnidirectional speed cockpit display

1978-03-14

1981-10-27

Yasich, Daniel M.

Communications: electrical

Selective

Having indication or alarm

116202, 116DIG43, B64D 4500, G08G 502

Patent

active

042976731

ABSTRACT:
An omnidirectional airspeed indicator has a plate with a window and a fixed horizontal bar across the window. A drum with graduations and numerical indications of speed and forward and rearward direction and with a safe flight envelope indication and safe engagement and disengagement indication rotates within the window so that the horizontal bar points to the forward and rearward speeds. A vertical bar moves between a drum and the window to indicate lateral speeds. Vectoral sum of speed is presented in digits at the top of the window. A rearward flight warning light is mounted beneath the window and a high speed warning flag appears in the window when maximum safe speeds are approached. Triangles at the lateral edges of the window cause the vertical bar to appear as a broken line when maximum lateral indications are approached or exceeded. Rate of climb is indicated by a pointer beside the window. A selector switch lights air density in the digital display. Airspeed inputs or ground speed inputs drive the indicator. A flag or light indicates which mode was in use if both types of data were alternately applied.

REFERENCES:
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patent: 4027838 (1977-06-01), Barnum et al.
patent: 4034605 (1977-07-01), Green
patent: 4044709 (1977-08-01), Greene

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