Method and installation for providing alignment guidance to an a

Details Method and installation for providing alignment guidance to an a Method and installation for providing alignment guidance to an a

1990-09-26

1992-08-04

Ng, Jin F.

Communications: electrical

Aircraft alarm or indicating systems

Land-based landing guidance

340953, 340954, B64F 118

Patent

active

051362880

ABSTRACT:
The invention relates to a method and an installation for providing an aircraft with alignment guidance during the approach stage. At least three flashing lights are disposed on either side of the runway and directed towards an approaching aircraft. The beam directions and the timing of the light flashes are such that the pilot of an aircraft lying on the axis of the runway sees the two lights closest to the runway flash simultaneously, whereas the pilot of an aircraft that is too far to one side or the other of the axis of the runway sees a series of light flashes that appear to be running towards the axis of the runway.

REFERENCES:
patent: 2968023 (1961-01-01), Ferguson et al.
patent: 3204218 (1965-08-01), Fillery et al.
patent: 3447129 (1969-05-01), Birmingham et al.
patent: 3488558 (1970-01-01), Grafton
patent: 3531765 (1970-09-01), Christianson et al.
patent: 3885876 (1975-05-01), Konopka
patent: 4170767 (1979-10-01), Tanner

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