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landing site  verb to position or to
put in a particular place
Where it is
impossible or inadvisable to site the
localiser antenna on the runway centreline,
it may be positioned to one side.
sitting sitting /stŋ/ adjective  sitting position
the position of a person who is on
a seat
The correct technique of using
the escape slides is to assume a sitting
position.
situate situate /stʃuet/ verb to put in a particular
place, to locate
The inlet pressure
is sensed by a single pitot-type
probe which is situated just in front of
the compressor.
situation situation /stʃu|eʃ(ə)n/ noun 1. a
location, the place where something is

The situation of the flight controls is
important. 2. the conditions or circumstances
in a particular place or at a particular
time
The synoptic chart is a
graphical representation of the general
weather situation over a given area at a
given time.
six character group six character group /sks
krktə $rup/ noun a group of six
letters and/or numbers
six degrees of freedom of motion six degrees of freedom of
motion /sks d|$riz əv fridəm əv
məυʃ(ə)n/ plural noun the six types of
movement that an aircraft must be able
to make: forward, upward and downward,
and roll, yaw and pitch
size size /saz/ noun the extent of a thing,
how big something is
Whether or not
an object can be seen by aircrew at a
given distance will depend on factors
such as the size, shape and colour of the
object.
skid skid /skd/ noun 1. a slide on slippery
ground
Anti-skid braking systems
units are designed to prevent the brakes
locking the wheels during landing, thus
reducing the possibility of wheel skid. 2.
a condition of uncoordinated flight then
the aircraft moves away from the centre
of a turn
Deflection of the ball in the
turn coordinator indicates a slip or a
skid.
anti-skid (NOTE: To correct a
skid, the pilot should increase the bank,
or increase rudder pressure on the
same side as the ball has moved to in
the turn coordinator.)  verb 1. to slide
on slippery ground
If you brake too
hard on a wet surface, you might skid.
(NOTE: skidding – skidded)  to skid
to a halt to slide or skid until you stop
2. to move sideways towards the outside
of a turning manoeuvre
skill skill /skl/ noun expertise, an excellent
ability in something
Skill in accurate
flying can only be achieved by constant
practice.
skin skin /skn/ noun the outer layer of a
body, or the outer layer of an aircraft

The aircraft skin is riveted to stringers
and frames.
skip distance skip distance /skp dstəns/ noun
the shortest distance at which a sky
wave can be received
The higher the
layer in which a direct wave signal is
totally refracted and returns as a sky
wave, the greater the skip distance.
skiplane skiplane /skiplen/ noun an aircraft
equipped with skis for taking off from
and landing on snow
sky sky /ska/ noun the atmosphere and
outer space as seen from the earth
The
higher the sun is in the sky, the more
intense is the radiation per unit area.
skyjack skyjack /skad"k/ verb to use force
to take illegal control of an aircraft,
especially a commercial aircraft, when
it is in the air
sky wave sky wave /ska wev/ noun part of a
radiated wave which is returned to
Earth by refraction from the ionosphere
skyway skyway /skawe/ noun a route used
by aircraft
skywriting skywriting /skaratŋ/ noun 1. the
use of an aircraft releasing coloured
smoke to form letters in the sky 2. letters
or a message formed in the sky by
coloured smoke released from an aircraft
slack slack /slk/ adjective 1. not tight  a
slack cable a loose cable 2. not busy

Early afternoon is a slack period of the
day. 3. widely spaced
Throughout the
tropics and sub-tropics, where pressure
gradients are normally slack, the sea
breeze is a regular feature.
Land and
211 smoke alarm
sea breezes occur in coastal areas when
there is a slack pressure gradient.
slant slant /slɑnt/ noun a slope or inclination

Distance Measuring Equipment
(DME) is a radio aid which measures
aircraft slant range to a ground beacon.
 verb to slope
The wing slants
　
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