Operation verification system and method for navigational instru

Details Operation verification system and method for navigational instru Operation verification system and method for navigational instru

1994-06-07

1997-03-11

Swarthout, Brent A.

Communications: electrical

Aircraft alarm or indicating systems

Nonalarm flight indicator

324155, 342401, 342411, 4552264, G01C 2100

Patent

active

056106009

ABSTRACT:
An instrument verification system which causes the instrument needles to "bob" periodically--a sharp momentary deflection from center. If desired, the flags can also be "dipped" at the same time, verifying their operation as well. The pilot can easily distinguish the momentary deflection of the needles from the more gradual changes caused by deviation from true course, and is assured that the centered needles mean perfect flying and not instrument failure.

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patent: 4996717 (1991-02-01), Koenig
patent: 5241698 (1993-08-01), Koenig
Lawton, R., IFR Refresher, "When the Glideslope Fails" Mar. 1994, vol. 8 Issue 3.

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