dead reckoning(redirected from Ded reckoning)
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1. A method of estimating the position of a vehicle such as an aircraft or a ship based on its previous position and its course and speed over a known interval of time.
2. Predictive calculation based on inference; guesswork.
[Possibly alteration of ded., abbr. of deduced, from deduce, to trace from the beginning; see deduce.]
(Navigation) a method of establishing one's position using the distance and direction travelled rather than astronomical observations
Navig. calculation of one's position on the basis of compass readings, speed, and distance run from a known point, with allowances for drift from wind, currents, etc.
dead reckoning- A calculation based on guesswork.
See also related terms for reckoning.
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|Noun||1.||dead reckoning - an estimate based on little or no information|
|2.||dead reckoning - navigation without the aid of celestial observations|