Kazan Helicopters Mi-17-1V Flight Manual page 97

MI1·17·1B. Flight manual
applications of the control stick and pedals. An attempt to bring the heli-
copter to course only by application of the pedals may cause its swinging
in yaw. Establish the airspeed for flying in bumpy air in accordance with
the instructions of para. 4.26.
When flying the helicopter in clouds refer to the gyro horizon and the
compass system indicator with periodical check of the readings of air-
speed indicator, rate-of-climb indicator, altimeter and slip indicator.
If the light screen induced by the navigation lights after entering the
clouds diverts pilots' attention from the flight instruments set the naviga-
tion lights DIM-BRIGHT (TYCKnO-71PKO) selector switch to DIM
(TYCKnO).
When flying in clouds continuously monitor and compare the flight in-
struments readings to timely detect their failure.
Failure of the gyro horizon can be detected by appearance of the flag on
its dial (indicating failure of the AC power supply), by comparing the
readouts of gyro horizon, rate-of-climb indicator and compass system in-
dicator. Failure of the pressure-actuated instruments can be detected by
comparing their readings with those of the gyro horizon and the Pilot-
Navigator's instruments.
If failure of one or several instruments is detected proceed to piloting the
helicopter referring to the standby instruments, report to the flying control
officer and act in accordance with his instructions.
During instrument flying more frequently check heading since even at
small banks practically not displayed by the gyro horizon the helicopter
deviates from the selected heading.
(12) During instrument flying the distribution of pilot's attention should be ap-
proximately as follows below:
(a) In climb: gyro horizon - rate-of-climb indicator, gyro horizon -
compass system indicator - altimeter, gyro horizon - airspeed indi-
cator and further in the same order with periodical check of the en-
gine power selling.
(b) In horizontal flight: gyro horizon - rate-of-climb indicator, gyro hori-
zon - compass system indicator - altimeter, gyro horizon - airspeed
indicator and further in the same order with periodical check of the
engine power selling.
(c) In turns: gyro horizon (miniature aircraft - ball) - rate-of-climb indica-
tor, gyro horizon - airspeed indicator, gyro horizon -compass sys-
tem indicator - rate-of-climb indicator and further in the same order.
(d) In glide on final approach: gyro horizon - compass system indicator
- rate-of-climb indicator, gyro horizon - compass system indicator -
altimeter - airspeed indicator and further in the same order.
(e) With the use of duplicating instruments upon failure of the gyro ho-
rizon: turn and slip indicator - compass system indicator, turn and
slip indicator - rate-of-climb indicator, turn and slip indicator - air-
speed indicator - altimeter.
(13) In flight the Pilot-Navigator should monitor the selected condition of flight
and calculated data of the manoeuvre being performed such as the time,
heading, altitude, airspeed and ADF relative bearings and particularly
current height in descent on final approach, report to the Captain the turn
initiation time during landing approach, be ready in any moment to as-
sume control of the helicopter.
4-26