Navigation instrument

Details Navigation instrument Navigation instrument

1975-04-14

1976-06-29

Morrison, Malcolm A.

Registers

Transfer mechanism

Traveling pawl

58152R, 23515027, 235 92TC, 340 27NA, B64D 4504

Patent

active

039670988

ABSTRACT:
A digital navigation instrument primarily intended for the general aviation pilot. The navigation instrument combines the functions of a calculator and a stopwatch and provides a method of easy reference to a navigation chart. The resulting unit provides ease of data entry from the navigation chart and ease of alternation between time interval measurement and arithmetic calculations.

REFERENCES:
patent: 3577120 (1971-05-04), Sherbert, Jr.
patent: 3589327 (1971-06-01), Jacobs
patent: 3854277 (1974-12-01), Samejima et al.
patent: 3877216 (1975-04-01), Mounce et al.

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