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hyperbolic position line

hyperbolic position line

hyperbolic position line
P1 and P2 are position lines.
Position lines obtained from NAVAIDs (navigational aids) such as CONSOL, LORAN (long-range navigation), and DECCA are hyperbolic in shape. These normally are combined with another position line of the same type to obtain a fix. These normally are plotted on special charts.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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Back home he joined HMS Scott and took part in rehearsals for D-Day before joining the armada that invaded on 6 June 1944, where the ship was tasked with clearing mines and establishing safe navigation channels using acetylene gas accumulator lighted navigation buoys (AGAs) and the then novel QM system that used hyperbolic position lines generated by low frequency continuous wave transmissions from two or more fixed stations.
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