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dead reckoning
Definição1
Navigation of an airplane solely by means of computations based on airspeed, course, heading, wind direction and speed, groundspeed, and elapsed time.
Fonte1
FEDERAL AVIATION ADMINISTRATION. Pilot's handbook of aeronautical knowledge. [s.l.], 2008. Disponível em: http://www.faa.gov/regulations_policies/handbooks_manuals/aviation/pilot_handbook/media/PHAK%20-%20Cover-Preface.pdf. Acesso em: 26 jun. 2014.
Definição2
Navegation based on speed, elapsed time, and direction from a known position.
Fonte2
MULTILINGUAL aeronautical dictionary, or, dictionary aeronautique multilingue: english, french, spanish, dutch, greek, italian,portuguese, turkish. London, England: Technical Editing and reproduction Ltd, 1980. xx, 876 p. ISBN 92835016667
Fonte3
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 4 to the Convention on International Civil Aviation. Aeronautical charts. 11th ed. Montreal: ICAO, 2009.
Nota adicional1
Information regarding this term is a result of researches developed by DECEA in cooperation with ANAC.
Contexto
This chart shall provide a means of maintaining a continuous flight record of the aircraft position by various fixing methods and dead reckoning in order to maintain an intended flight path.
Subárea1
Air Navigation
Português
navegação estimada
Imagem

 The pilot marks his position at 9 a.m., indicated by the triangle, and, using his course and speed, estimates his position at 9:30 a.m. and 10:00 p.m.

The pilot marks his position at 9 a.m., indicated by the triangle, and, using his course and speed, estimates his position at 9:30 a.m. and 10:00 p.m.

Fonte: http://commons.wikimedia.org/wiki/File:Dead-reckining.svg?uselang=es