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DEAD ACCURATE DISTANCE [2 records]
Record 1 - internal organization data 2018-02-27
Record 1, English
Record 1, Subject field(s)
- River and Sea Navigation
- Shipbuilding
Record 1, Main entry term, English
- dead range
1, record 1, English, dead%20range
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- dead accurate distance 2, record 1, English, dead%20accurate%20distance
Record 1, French
Record 1, Domaine(s)
- Navigation fluviale et maritime
- Constructions navales
Record 1, Main entry term, French
- distance exacte
1, record 1, French, distance%20exacte
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-06-21
Record 2, English
Record 2, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 2, Main entry term, English
- cumulative drift
1, record 2, English, cumulative%20drift
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- cumulative deviation 2, record 2, English, cumulative%20deviation
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Dead reckoning is a technique of computing the position of a vehicle from its distance and heading measurements. It is an inertial system which uses two independent sensors from which distance and heading information can be extracted. Because each position is relative, cumulative drift errors occur on an average of 2% of the distance traveled. The system consists of a magnetic compass or gyroscope for heading and odometer for distance. Dead reckoning is often combined with map matching to correct for drift errors. It performs well when combined with highly accurate digital maps. It can also be used to back up GPS during satellite visibility outages. 3, record 2, English, - cumulative%20drift
Record number: 2, Textual support number: 2 CONT
To minimize cumulative drift, verticial gyros may be slaved, or caged, to the gravity vertical. Caging is automatically discontinued whenever the airplane is in a steady turn. 4, record 2, English, - cumulative%20drift
Record 2, French
Record 2, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 2, Main entry term, French
- dérive cumulée
1, record 2, French, d%C3%A9rive%20cumul%C3%A9e
feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Test dérive cumulée d'étalonnage. 2, record 2, French, - d%C3%A9rive%20cumul%C3%A9e
Record 2, Spanish
Record 2, Textual support, Spanish
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