Communications: electrical – Aircraft alarm or indicating systems – Nonalarm flight indicator
Patent
1982-05-28
1984-06-05
Groody, James J.
Communications: electrical
Aircraft alarm or indicating systems
Nonalarm flight indicator
73178R, 340971, 340975, 340978, 340705, G01C 2100, G01C 2500
Patent
active
044531630
ABSTRACT:
Display for use on propeller driven aircraft comprised of a radially disposed row of lamps 12 embedded in the rear surface of a propeller 11. Measurements of flight data are made by conventional means and converted into digital signals (15 and 18). These digital signals are applied to graphic generators, 16 and 19, which control lamp drivers 13 which in turn control lamps 12 through slip rings 14. The lamps 12 are lit at appropriate times (determined by sync pulses 17) during each revolution of the propeller to cause the flight data in graphic form to appear to the pilot.
REFERENCES:
patent: 3154636 (1964-10-01), Schwertz
patent: 3529283 (1970-09-01), Emerson
patent: 3846784 (1974-11-01), Sinclair
patent: 3958235 (1976-05-01), Duffy
patent: 4162493 (1979-07-01), Ross
Garner H. Douglas
Howell William E.
Groody James J.
King William H.
Manning John R.
Osborn Howard J.
The United States of America as represented by the Administrator
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