Yak 18T Flight Operations Manual
Page 57 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.
10.5. Crosswind Landing
1.
On the crosswind approach crab into the wind using a drift-correction angle
2.
When landing, keep in mind that the aircraft in crosswind from the left has a settling
tendency
3.
After the two main wheels have touched down, move the rudder to obtain a coincidence
between the axis of the aircraft and the runway centre line, then
SET
the rudder pedals
to the
NEUTRAL
position and on lowering the nose wheel at a speed of 110km/h
proceed to braking. Compensate the aircraft downwind side banking by aileron deflection
4.
The touch down speed is 5-10km/h more than for usual flight
10.6. Engine Shutdown
1.
Prior to the engine shutdown, switch-off the circuit breakers converter, radio altimeter,
radio compass, intercommunication system, marker receiver, gyro-horizon inverter,
compass system, gyro-horizon and radio station
2.
Cool the engine, for this purpose –
•
OPEN
the cowling gills and the oil radiator shutters fully
•
DECELERATE
the engine crankshaft speed up to 28%-34% (a fine pitch of the
propeller) and run at this condition until the cylinder head temperature is reduced to
140°C-150°C
If it is impossible to cool the cylinder heads up to 140°C-150°C, then engine stopping is
allowed to be performed at the cylinder head temperature not over 170°C, in so doing, note
the number of cut-outs with 170°C cylinder head temperature in the engine log sheet
3.
After cooling the cylinder heads, carry out the engine stopping
CAUTION
Prior to the engine stopping, long-term idling is
PROHIBITED
as it causes the spark plugs to
be fouled, the crankcase to be overfilled with oil and this in its turn can result in a hydraulic
shock during a subsequent start
For the engine stopping, proceed as follows –
•
ACCELERATE
the engine up to 65%-68% with FINE PITCH of propeller during 20-30
seconds and let the spark plugs to burn-through
•
DECELERATE
the engine up to 28%-34% by the thrust lever
•
MAKE SURE
that the propeller pitch lever is
SET
to the position FINE PITCH
•
MOVE
the thrust level smoothly forwards against the stop (open fully the carburettor
throttle butterfly)
•
SWITCH
the magneto off by setting the switch to 0 position
After stopping the engine,
SET
the thrust lever to the idle stop position IDLING (fully
backwards) and close the fire valve.
SWITCH OFF
the rest of the circuit breakers, switches and cut-outs on the switchboard.
CAUTION
The engine is
PROHIBITED
to be shutdown –
•
directly from the cruise power settings and higher power settings
Summary of Contents for 18T
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