Hovering - Kazan Helicopters Mi-17-1V Flight Manual

MI'I-17 -1B. Flight manual
pitch down to the minimum level and retard the throttle
control twist grip. If the helicopter oscillations do not
stop or increase their magnitude immediately shut down
the engin8$ and stop the helicopter.
2. Never decelerate the helicopter motion by the main rotor
(by pulling the control stick).
3. Do not turn the throttle control twist grip to the left during
taxiing since this may cause a deceleration of the main
rotor below 88% at which the ac generators may cut out.
(7) During taxiing the Pilot-Navigator should observe the space forward and
to the right from the helicopter and report the Captain of obstacles.
Having reached the point of takeoff test the flight and navigation equip-
ment and make sure the gyro horizon is energised (there is no flag on the
ArS-3K gyro horizon display), the APK-15(ADF) indicates correct bearing
to the locator station, the compass system is slaved and its reading
agrees with the actual takeoff heading.
Start the aircraft clock elapsed flight time readout.
(8) During taxiing the Flight Engineer should monitor operation of the power
plant, hydraulic system and generators.
4.2. Hovering
(1) Hover near the ground in the following cases:
(a) Before each flight with a new variant of loading.
(b) In case of necessity to test some helicopter systems.
(c) For functional check of the power plant and flight controls.
(2) To execute hovering proceed as follows below:
(a) Position the helicopter to meet the wind speed and direction limita-
tions (into the wind where possible).
(b) Make sure the instrument readings are normal and the throttle con-
trol twist grip is set to the rightmost position.
(c) Smoothly pull up the collective pitch control lever to set the collec-
tive pitch to 3°.
(d) Make sure the main rotor speed is within 95%. If it exceeds 95%,
operate the main rotor speed resetting switch to bring the speed to
the specified limits.
Warning: It is not allowed to operate main rotor speed resetting
switch in flight.
(e) Engage the autopilot by depression of the ROLL-PITCH (KPEH-
TAHrA)/() and YAW (HAnPABnEHLtlE) switch-lights, and the
ROLL-PITCH ON (BKn.KPEH-TAHrA>K) and YAW ON
(BKn.HAnPABJlEHLtlE) green indication lights should come on.
(f) Request clearance for hovering over the radio channel.
(g) Smoothly pull up the collective pitch control lever to lift the helicop-
ter off the ground and ascend to a desired hovering height.
(3) Increasing of the main rotor collective pitch during lift-off should be
smooth, process of setting takeoff power to the engines should continue
for not less than 5
S,
thus maintaining the main rotor speed unchanged
within the limits of 92 to 97 %.
Setting of takeoff power is determined by the Pilot by a main rotor speed
4-4