Yak 18T Flight Operations Manual
Page 76 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.
Establishing external communication by the
user
1. A push button RADIO on the yoke of a
cadet or instructor
Press the push button to be engaged in
communication
2. RAD knob on the user’s apparatus of the
cadet or instructor
Set the volume required
Establishing internal communication by the
user
1. A push button on the yoke of a cadet or
instructor
Press the button to be engaged in
communication
2. A push button on the user’s apparatus of
the cadet or instructor
Set the required volume of signals from the
amplifier
The apparatus provides a constant listening to the external communication signals when
using the internal communication network and internal communication signals when using the
external communication network with 100% loudness level.
Listening to the radio navigation devices and special signals
The switch RADIO COMPASS OFF on the
user’s apparatus of the cadet or instructor
Set to position
Signals DANGEROUS ALTITUDE and of a marker receiver are listened to with 100% volume
irrespective of the controls position.
CAUTION
The switch (a standby one) on the user's apparatus must be always in OFF (down) position, if
the user's apparatus happens to be out of order, then set this switch up to change your
telephones over to other user's apparatus.
How to Use Wiper
1.
The wiper can be switched on when the aircraft is flying at a speed of 220km/h. It is
controlled from a WIPER switch placed at the left board of the instrument panel. The
WIPER switch has four fixed positions: START, 1 SPEED, 2 SPEED,
NEUTRAL
(off
position) and one pressed position INITIAL POSITION
2.
The wiper switch is turned-on using the following sequence -
•
at ambient temperatures of 30 to -20°C the switch can be set to any of its positions
START, 1 SPEED or 2 SPEED. The switch operation time in flight when it is being in
the START position should not exceed 5 minutes, when it is in the position I SPEED
or 2 SPEED time is not limited
NOTE:
1.
If the temperature exceeds -20°C, the wiper is allowed to be directly switched on at the
first or second speed
2.
Several double brush turns can be made during the first minute when the WIPER switch
is set to 1 SPEED -64 to 90, 2 SPEED -38 to 60
3.
At ambient temperatures below -20°C the WIPER switch can be set to the START position
for not more than 3 minutes and then it should be changed over to 1 SPEED
CAUTION
1.
At ambient temperatures below –20°C it is
PROHIBITED
to set the wiper switch to the
2 SPEED position
Содержание 18T
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