dead reckoning
English edit
Alternative forms edit
Etymology edit
Uncertain. Not short for deduced or deductive, but this belief explains the alternative spelling ded reckoning (which actually originated centuries later).
Pronunciation edit
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Noun edit
dead reckoning (countable and uncountable, plural dead reckonings)
- A method of estimating the position of a ship or aircraft by applying estimates of the distance and direction travelled from a previously known position. In respect to ships/boats, it excludes the effect of wind and current on the vessel. Compare with estimated position. Abbreviation: DR
Translations edit
method of estimating the position of a ship or aircraft
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