pushrod /pυ.r.d/ noun a steel or aluminium rod which moves the rocker arm . The camshaft operates the push-rod. (NOTE: The pushrod is part of the valve mechanism.)
pylon /pa.l.n/ noun 1. a structure on the wing of an aircraft to support an
engine (NOTE: Most modern jet passen-ger transport aircraft have pylon-mounted engines.) 2. a tall metal struc-ture built to support electricity or tele-phone cables . Electricity pylons are difficult to see from the air so pilots of light aircraft should be particularly careful to note their positions.
pyrotechnic /pa.r.tekn.k/ adjec-tive of or relating to fireworks . pyro-technic lights lights created by rockets or flares
Q
Q-code /kju k.υd/ noun an interna-tional telegraph code which is now used in RTF operations
QDM noun in the Q-code system, the magnetic bearing to a direction-finding station
QFE noun in the Q-code system, the atmospheric pressure at aerodrome level
QFI abbreviation qualified flying instructor
QNE noun in the Q-code system, the altimeter setting for flight level reading, 1013.25 mb
QNH noun in the Q-code system, the atmospheric pressure at mean sea level
QNH datum /kju en e.t. de.t.m/
noun the barometric level from which altitude is measured
QTE noun in the Q-code system, the true bearing from a direction-finding station
quadrant /kw.dr.nt/ noun 1. a
device shaped like a quarter of a circle . gated quadrant a quadrant with a device preventing a lever from being moved to an incorrect setting . The throttles, usually known as power levers, operate in a gated quadrant. 2. .
compass quadrant the quarter part of a circle centred on a navigational aid
COMMENT: NE quadrant = 000° – 089°; SE quadrant = 090° – 179°; SW quadrant = 180° – 269°; NW quadrant = 270° – 359°.
quadrantal /kw.drnt(.)l/ adjec-tive referring to a quadrant or to a quar-ter of a circle . quadrantal error a radio signal error caused by the metal structure of the receiving aircraft . quadrantal height flight levels in each of the compass quadrants designed to provide safe separation for aircraft heading towards each other
qualified /kw.l.fa.d/ adjective hav-
ing gained a certificate after having completed a specialised course of study
qualified flying instructor
/kw.l.fa.d fla... .nstrkt./ noun a
pilot with an instructor’s rating. Abbre-
viation QFI qualify /kw.l.fa./ verb 1. to add res-ervations or modify an earlier statement to make it less absolute . Fire in the wing may cause the captain to qualify the evacuation command, informing cabin crew of these conditions and allowing them to adjust the evacuation plan accordingly. 2. to study for and obtain a diploma which allows to do a particular type of work . He qualified as an engineer in 1996.
quality /kw.l.ti/ noun the amount of excellence of something . Satisfactory ignition depends on the quality of the fuel.
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Dictionary of Aviation 航空詞典 下
