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Testing a Modern Gyro-Magnetic Compass

Published online by Cambridge University Press:  18 January 2010

J. D. Ackerman
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Extract

Gyro magnetic compasses are subject to a large number of errors, some of which may be eliminated, or at least greatly reduced, by careful design on the part of the instrument manufacturer and an intelligent operating drill on the part of the user. Table I shows errors under five basic headings, and allots to each error a symbol classifying it as:

(a) The responsibility of the instrument manufacturer (I)

(b) The responsibility of the aircraft manufacturer or its operator (A)

(c) Inadequate knowledge of the geomagnetic structure of the Earth's field (K)

Some sources of error in Table I are marked with an asterisk. It is these which the designers of the compass system described have endeavoured to eliminate.

Type
Gyro-Magnetic Compass Systems
Information
The Journal of Navigation , Volume 18 , Issue 1 , January 1965 , pp. 56 - 64
Copyright
Copyright © The Royal Institute of Navigation 1965

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References

Grocott, D. F. H. (1962). The testing and evaluation of radio navigation systems, Navigation Systems for Aircraft and Space Vehicles, AGARDograph, 55, 36.Google Scholar
Trials of gyro magnetic compass, aspects of the flight control system to OR 988. A. & A.E.E./Tech/246/Nav.Google Scholar
Trials of V.C.U. Mk. 1. A. & A.E.E./Tech/247/Nav.Google Scholar