Yak 18T Flight Operations Manual
Page 36 of 82
Disclaimer: This manual is to be used as a reference only, it is based on translated Yak 18T Flight Operations
Manuals and has not been approved by the Yakovlev Design Bureau or any other authority.
Section 7 - Flying
7.1. Take-off Preparation
Prior to requesting clearance for take-off, hold the aircraft with the brakes
ON
and carry out
the following checks –
•
CHECK
the proper state of the gyro-horizon. The aircraft is cleared for take-off only
if the gyro-horizon is
OPERATIONAL
(i.e. actually operational for at least 3 minutes)
•
CHECK
that the compass reading
CORRESPONDS
to the take-off heading (when
was the last time the compass was re-aligned?)
•
CHECK
that the landing split flap is
RETRACTED
•
CHECK
propeller pitch is
SET
to the
FINE PITCH
position (i.e. fully forward)
•
CHECK
for full and free
DEFLECTION
of the yoke and rudder pedals
•
CHECK
elevator trim is
NEUTRAL
position (a yellow/green light
TRIM NEUTRAL
on
the panel should be
ON
)
•
CHECK
that the cut-outs, switches and circuit breakers on the switch board required
for the flying mission fulfilment are
ON
•
in case of possible carburettor icing or ice formation in winter,
SWITCH
the
carburettor heat
ON
LOOK
around and on making sure that it is clear and that no unexpected aircraft are
approaching,
REQUEST
a clearance for take-off.
7.2. Take-off and Climb
Upon receiving the appropriate form of take-off clearance, enter the runway and
TAXI
along
a straight line 3-5m in order to
SET
the nose wheel straight and over the take-off line,
holding the brakes
ON
.
Immediately place the engine into the
Nominal I
regime. Hold the aircraft with the brakes
ON
and check readings of the instruments controlling the engine operation. The instrument
readings must be as follows –
•
cylinder head temperature
140°C-190°C
•
recommended inlet engine oil temperature
50°C-65°C
(at least
40°C
and not over
75°C
) and
fuel pressure
0.2-0.5 kgf/cm²
)
•
oil pressure
4-6 kgf/cm²
•
the engine must run without undue
VIBRATION
or
SHAKING
•
SWITCH ON
the warning indicator
DANGEROUS SPEED
On making sure that the engine
OPERATES PROPERLY
,
CLEARANCE
has been given and
NO OBSTACLES
are present on the runway, you may
TAKE-OFF
by selecting the engine
TAKE-OFF
regime
•
SET
the
CLOCK
to the
ON
position
•
RELEASE
the
BRAKES
and by a smooth moving of the thrust lever
SET
it to the
take-off regime, i.e. fully forward
•
DURING
the take-off run, keep the yoke in the
NEUTRAL
position, compensate for
the turns that may be necessary by gradually deflecting the rudder
•
when the IAS has reached
80-90km/h
, smoothly pull the yoke backwards in order
to
RAISE
the nose wheel to the take-off position (10-15 cm off the ground) and hold
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