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pitot tube
Definição1
An open-end tube that points directly into the air flowing over an aircraft structure. The pitot tube samples the pressure of the ram air. This pressure is taken into the airspeed indicator where it is compared with static air pressure to produce the airspeed indication.
Fonte1
CRANE, Dale (ed.). Dictionary of aeronautical terms. 2nd ed. Renton: ASA, 1991.
Fonte2
CROCKER, David. Dictionary of aviation. 2nd ed. London: A&C, 2005
Contexto
The position of the pitot tube and the attitude of an aircraft can affect the accuracy of the airspeed indicator.
Português
tubo pitot
Imagem

Aircraft use pitot tubes to measure airspeed. The example in this photo combines a pitot tube with a static port and an angle-of-attack vane.

Aircraft use pitot tubes to measure airspeed. The example in this photo combines a pitot tube with a static port and an angle-of-attack vane.

Fonte: http://en.wikipedia.org/wiki/File:Airspeed_p1230157.jpg