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heading indicator
Definição1
An instrument designed to indicate the heading of the aircraft. It enables the pilot to steer the required heading with the least effort. Also known as directional gyro.
Fonte1
KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
Definição2
An instrument which senses airplane movement and displays heading based on a 360° azimuth, with the final zero omitted. The heading indicator, also called a directional gyro (DG), is fundamentally a mechanical instrument designed to facilitate the use of the magnetic compass. The heading indicator is not affected by the forces that make the magnetic compass difficult to interpret.
Fonte2
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.
Fonte3
FEDERAL AVIATION ADMINISTRATION. Rotorcraft flying handbook (FAA-H-8083-21). Washington, DC: FAA, 2000. Disponível em: http://www.faa.gov/library/manuals/aircraft/media/faa-h-8083 -21.pdf. Acesso em: 10 fev. 2012.
Fonte4
ARAÚJO, João Richard Barcelos. Inglês técnico: técnicos em manutenção de aeronaves. [S.l]: [s.n.], [200-]. 100 p.
Contexto
In coordinated flight, the heading indicator gives an indirect indication of the helicopter ’s bank attitude. When a helicopter is banked, it turns. When the lateral axis of the helicopter is level, it flies straight. Therefore, in coordinated flight, when the heading indicator shows a constant heading, the helicopter is level laterally.
Subárea1
Flight Instruments
Português
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