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dead reckoning - [navigation] A navigation method of last resort that uses the most recently recorded position of a ship or aircraft, along with its speed and drift, to calculate a new position.
[Category=Geospatial ]
Source: esri, 20 March 2012 08:39:53, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation
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