HERIKOPUTAANO KUKISOKUDOO SOKUTEISURUSOCHI

Title:

HERIKOPUTAANO KUKISOKUDOO SOKUTEISURUSOCHI

Document Type and Number:

Japanese Patent JPS5147799

Kind Code:

A

Abstract:

Apparatus for measurement of the velocity of a helicopter with reference to the air comprises two measurement systems that are substantially identical, associated with a double indicator. The measurements are effected with reference to the longitudinal axis and the transverse axis of the helicopter. Each measurement system comprises a position detector for detecting the position of the cyclic rotor pitch command member along one axis, and a detector of the acceleration component along the same axis, with a substantially identical measurement system associated with the other axis. Computing means effect integration of the algebraic sum of the measured values, and pass signals to the double indicator which indicates velocity of the helicopter along the axes. The acceleration detectors include pendular levels, and all detectors incorporate measurement potentiometers. The apparatus is especially useful in the measurement of the air speed of a helicopter close to hovering conditions.

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Inventors:

BERUNAARU MARI JOSEFU

Application Number:

JP10130275A

Publication Date:

April 23, 1976

Filing Date:

August 22, 1975

Export Citation:

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Assignee:

FRANCE ETAT

International Classes:

B64C27/00; B64D43/02; G01P7/00; G05D1/06; (IPC1-7): G01P5/06

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