: the determination without the aid of celestial observations of the position of a ship or aircraft from the record of the courses sailed or flown, the distance made, and the known or estimated drift
2
: guesswork
dead reckonverb
Example Sentences
Recent Examples on the WebBorn in Marblehead, Mass., Ellen Creesy learned how to pilot a vessel from her father, who also taught her the rudiments of navigation: dead reckoning and how to read a nautical chart. Gary Kamiya, San Francisco Chronicle, 4 Feb. 2022 But for longitude, navigators had to rely on dead reckoning that was subject to errors. Tim Bajarin, Forbes, 28 Apr. 2021 The researchers modeled the animals’ behavior using a variety of math ideas and the navigational concept of dead reckoning. Caroline Delbert, Popular Mechanics, 19 Mar. 2021 Yoni Nova Kusumawan, had to rely on dead reckoning—using the STS-50’s trackline and rate of speed to estimate where and when to intercept it. Tristram Korten, Smithsonian Magazine, 21 Aug. 2020 But since all of these systems all used dead reckoning—which, again, compares a car’s location to that of a map—these solutions weren’t actually that much more advanced than the 1909 Jones Live-Map. Larry Printz, Ars Technica, 24 June 2020 Known as dead reckoning, the system didn't use satellites. Larry Printz, Ars Technica, 24 June 2020 Developed in California by Stan Honey and Atari founder Nolan Bushnell, this aftermarket automotive navigation system also operated on dead reckoning by comparing a car’s location to points on a map. Larry Printz, Ars Technica, 24 June 2020 In 1995, the 174m Panamanian cruise ship Royal Majesty had a mechanical failure that forced its navigation system to switch from GPS to dead reckoning. Jim Salter, Ars Technica, 22 June 2019 See More