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Historical Hyperbolae

Published online by Cambridge University Press:  18 January 2010

Claud Powell
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At a first glance, one of the two accompanying diagrams might be taken to represent a three-station Decca or Loran chain, while the other offers familiar instruction on how to interpolate between the lattice lines and plot the fix. In fact, these are illustrations in a German Army handbook entitled An Introduction to Sound Ranging and the Work of the Sound Ranging Section, published in July 1918.

Type
Forum
Information
The Journal of Navigation , Volume 25 , Issue 1 , January 1972 , pp. 107 - 109
Copyright
Copyright © The Royal Institute of Navigation 1972