Navigational system of high-speed aircraft

Details Navigational system of high-speed aircraft Navigational system of high-speed aircraft

1967-08-25

1979-11-20

Birmiel, Howard A.

Boots, shoes, and leggings

3401463Q, 343 5MM, 364604, G06F 1550

Patent

active

041752856

ABSTRACT:
Navigational system for the guidance of automatically piloted aircraft during high-speed (e.g. supersonic) overland flights, the predetermined course of the aircraft including a series of spaced-apart measuring zones registered on a progressively displaceable film strip or other recording medium in the form of two-dimensional arrays of prerecorded altitude markings representing the profile of the overflown terrain within each zone. Each array encompasses several regions of uncertainty defined as a range of possible horizontal deviation of the automatic pilot from the charted course; the markings, which may be in the form of identical asymmetrical figures indicating by their angular orientation the reference parameter (absolute or relative altitude) of the terrain within each elemental area of a region of uncertainty, are electro-optically compared with a bench mark indicating, by its own angular orientation in response to altitude soundings aboard the aircraft, the value of the reference parameter of the terrain actually overflown, the comparison yielding a projected contour line whereby, through a rapid succession of soundings and comparisons within each zone, the true position of the aircraft can be determined from the intersection of the several contour lines so obtained.

REFERENCES:
patent: 3328795 (1967-06-01), Hallmark
patent: 3740747 (1973-06-01), Hance et al.
patent: 3794272 (1974-02-01), Hecker
patent: 3805261 (1974-04-01), Deschamps et al.

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