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The 3-Position Line Problem at Sea

Published online by Cambridge University Press:  01 July 1950

A. J. R. Tyrrell
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Extract

When simultaneous position lines are unobtainable a running fix or transferred position line is generally used. This method depends for its accuracy on the true assessing of course and speed. If, instead of transferring one of two position lines, three are obtainable, only the course need be assessed and used to obtain a position. It is assumed that the speed is constant, or nearly so—a reasonable assumption.

Type
Research Article
Information
The Journal of Navigation , Volume 3 , Issue 3 , July 1950 , pp. 307 - 309
Copyright
Copyright © The Royal Institute of Navigation 1950

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