Dictionary of Aviation下(63)

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lapse rate
salvage salvage /slvd"/ verb to save items
of property which may be in danger of
being lost
In the event of a crash landing
in a remote area on land, an attempt
should be made to salvage all items of
survival equipment from the wreckage
including beacons, rafts and raft equipment.
sample sample /sɑmpəl/ noun a small
amount which is representative of the
whole
If a sample of fuel taken from a
tank was found to be hazy or cloudy in
appearance, this would indicate the
presence of water in suspension.
If
fuel contamination by water is suspected,
a sample of fuel should be
drained from the tank for inspection.
sandwich sandwich /snwd"/ noun a construction
of three layers, the material of
the one in the middle being different
from the two on each side
Standard
connectors consist of a metal coupling
with a rubber sandwich joint.
SAR SAR abbreviation 1. special aerodrome
report 2. search and rescue (ICAO)
SAS 202
SAS SAS abbreviation stability augmentation
system
satellite satellite /stəlat/ noun an object
launched to orbit the earth, usually
receiving and transmitting signals, pictures
and data
Satellite communications
improve the effective distribution
of world area forecasts.
satellite navigation satellite navigation /st(ə)lat
nv|$eʃ(ə)n/, satellite navigation
system noun a system of navigation
which uses orbiting satellites to determine
the position of an aircraft or point,
in relation to the Earth’s surface. Abbreviation
SATNAV
satisfactory satisfactory /sts|fkt(ə)ri/
adjective adequate, good enough
For
satisfactory operation, an engine
requires an adequate supply of oil.
‘…during the engine run-up, check that
the use of carburettor heat gives a
satisfactory drop in rpm or manifold
pressure’ [Civil Aviation Authority,
General Aviation Safety Sense Leaflet]
satisfy /stsfa/ verb 1. to meet a
particular prescribed standard
Shell
Avgas 100LL satisfies British specification.
2. to meet the needs or requirements
of something
To satisfy the
requirements of aviation there are three
types of meteorological offices for aviation,
each with a specific role to fulfil.
SATNAV SATNAV /stnv/ abbreviation satellite
navigation
saturate saturate /stʃəret/ verb to cause a
substance to combine with the greatest
possible amount of another substance

When a sample of air contains the maximum
amount of water vapour for its
particular temperature, it is said to be
saturated.
lapse rate
saturation saturation /stʃə|reʃ(ə)n/ noun
the state of being filled with the maximum
amount of something which can
be absorbed, e.g. a sample of air which
contains the maximum amount of water
vapour for its temperature
The various
types of fog are classified by the
manner in which saturation is reached.
 the moisture in the air reached saturation
point and fell as rain the air
could absorb no more water
saturation point saturation point /stʃə|reʃ(ə)n
pɔnt/ noun the level at which no more
of a substance can be absorbed
save save /sev/ verb to prevent unnecessary
use of
Electro-magnetic switches
are generally used to control high-current
devices by means of a small current
thus saving heavy duty cable and therefore
weight.
SBSB abbreviation service bulletin
scale scale /skel/ noun 1. marks at fixed
intervals used as a reference standard in
measurement
This ruler has scales in
inches and centimetres. 2. a graded system
of classification 3. a proportion
used in determining distance on charts

Many aeronautical charts use a scale of
1:500,000.
scan scan /skn/ verb 1. to look at quickly
and systematically
The pilot is trained
to scan the instrument panel. 2. to move
a radar beam in a systematic pattern in
search of a target
Some radars scan in
azimuth and glideslope.
scatter scatter /sktə/ noun deflection of
radiation
High frequencies are freer of
ionospheric scatter and are relatively
free of noise.
schedule schedule /ʃedjul/ noun 1. a list of
times of departures and arrivals
an
airline schedule 2. a printed or written
list of items in the form of a table

inspection schedule
maintenance
　
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