Normalized coefficient of lift indicator

Details Normalized coefficient of lift indicator Normalized coefficient of lift indicator

1979-03-19

1980-11-25

Woodiel, Donald O.

Measuring and testing

Navigation

Leeway incidence or side-slip

G01C 2100

Patent

active

042351049

ABSTRACT:
An aircraft instrumentation system having an indicator which indicates a linearly variable ratio of the pressure differential between two pressures at two different locations on the aircraft wing and two pressures located remote therefrom. An electrical circuit is responsive to the pressures to determine and indicate the aforesaid ratio. Each of the locations wherein pressure is to be detected is positioned so that the aforesaid ratio remains nondouble valued independent of electrical compensation circuits which are responsive to variations in aircraft power and flap setting to thereby provide a ratio which is a function only of a normalized coefficient of lift (C.sub.LN *) and to thereby provide the pilot with an indication at all times as to the aircraft's orientation relative to the maximum coefficient of lift.

REFERENCES:
patent: 2986033 (1961-05-01), Spencer
patent: 3587311 (1971-06-01), Hays
patent: 3880002 (1975-04-01), Gallington
patent: 3885431 (1975-05-01), Gallington

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