Dictionary of Aviation上(28)

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aviation routine weather report aviation routine weather report
/evieʃ(ə)n rutin weθə r|pɔt/
noun a weather report issued regularly
at intervals of an hour or half an hour
describing weather conditions at an airport.
Abbreviation METAR
aviator aviator /evietə/ noun a person who
flies aircraft
avionics avionics /evi|ɒnks/ noun electronic
communication, navigation, and
flight-control equipment of an aircraft

The trainee engineer is doing an avionics
course. Full form aviation electronics
avoid avoid /ə|vɔd/ verb 1. to prevent
something from happening
She just
managed to avoid an accident. 2. to
keep away from something
Avoid flying
close to any person or vessel.

Cumulonimbus clouds and thunderstorms
should be avoided by as great a
distance as possible.
avoidance avoidance /ə|vɔd(ə)ns/ noun an act
of avoiding something  avoidance of
thunderstorms is recommended it is
recommended to keep away from thunderstorms
await await /ə|wet/ verb to wait for
Await
instructions from the flight deck.
aware aware /ə|weə/ adjective knowing and
being conscious of something
The
pilot should be aware of the positions of
all other aircraft in the circuit.
awareness awareness /ə|weənəs/ noun the
state of being aware or conscious of
something  safety awareness the state
of being familiar with and prepared for
any situation in which safety is important
AWR AWR abbreviation airborne weather
radar
axial axial /ksiəl/ adjective referring to an
axis
axial flow compressor axial flow compressor /ksiəl
fləυ kəm|presə/ noun a compressor in
which the flow of air is along the longitudinal
axis of the engine
In spite of
the adoption of the axial flow type compressor,
some engine retain the centrifugal
type.
axis axis /kss/ noun 1. an imaginary
line around which a body rotates
The
Earth rotates around its own axis.
An
aircraft moves around three axes – vertical,
longitudinal and lateral.
pitch,
roll, yaw 2. a horizontal or vertical scale
on a graph, often referred to as the X
axis, the horizontal axis, and the Y axis,
the vertical axis
The plot shows the
effect of airspeed on lift with airspeed
shown on the horizontal axis and lift on
the vertical axis. (NOTE: The plural form
is axes.)
axle axle /ksəl/ noun a shaft on which a
wheel is mounted
Unequal tyre-pressures,
where two wheels are mounted on
the same axle, will result in one tyre
carrying a greater share of the load
than the other. (NOTE: The wheel either
turns round the axle or is fixed to the
axle.)
azimuth azimuth /zməθ/ noun the horizontal
angle or direction of a compass bearing

Where precision approach radar
is installed, the controller can inform
the pilot if they depart from either the
extended centre-line in azimuth or
height or both.
B
back back /bk/ verb (of the wind) to
change direction in an anticlockwise
direction. Opposite veer
backup backup /bkp/ adjective, noun a
second or third system, instrument or
computer disk available to be used if the
first one fails
The backup system or
the backup failed as well.
Backup generators
are driven by the engine.
backward backward /bkwəd/ adjective
directed towards the back
a backward
movement
backwards backwards /bkwədz/ adverb
towards the back
Unlike most aircraft,
the C130 can move backwards using its
own power. (NOTE: The US English is
backward.)
backwash backwash /bkwɒʃ/ noun a backward
flow of air produced by an aircraft
propeller or jet engine
baffle baffle /bf(ə)l/ noun a metal plate for
preventing the free movement of sound
or liquids
Integral fuel tanks can be
strengthened by fitting baffle plates.
baggage baggage /b$d"/ noun luggage,
cases and bags which you take with you
when travelling
One passenger had a
huge amount of baggage.
She lost one
piece of baggage. (NOTE: The word luggage
is also used in British English.) 
baggage hall an area where arriving
passengers pick up their baggage 
carry-on baggage small bags of limited
size and weight that passengers are
allowed to take with them into the cabin
of an aircraft
baggage allowance baggage allowance /b$d" ə|
　
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