Autopilot Controlled Flight - Kazan Helicopters Mi-17-1V Flight Manual

MI1-17-1B. Flight manual
(a) At a height of 200 m and an airspeed of 120 km/h, on final leg shut
down the engine proceeding as instructed in 4.12, (4).
(b) Operate the coiiective pitch control iever io mainiain the main rotor
speed within the limits of 95± 2%.
(c) Make sure the operating engine has gained the contingency power.
(d) On the glideslope maintain such a condition that the airspeed is 20
km/h higher than the current height in meters.
(e) Assume landing attitude at a height of 7 to 5m.
(f)
Beginning from a height of 3 to 5 m proceed to reducing the vertical
speed of descent by increasing the main rotor pitch up to the mo-
ment of touchdown. In so doing, smoothly apply the right pedal to coun-
teract the helicoptertendency to turn to the left and operate the control
stick to maintain the landing pitch attitude. In increasing the collective
pitch precludethe main rotor speed from dropping below 88%.
(g) After touchdown, immediately push smoothly the collective pitch
control lever fully down and simultaneously push the control stick
1/3 to 1/4 full travel forward to preclude hitting of the tail boom by
the main rotor blades.
(h) After rotation to touch down by the nose LG wheel apply the wheel
brakes. When using such a procedure the helicopter touches down
at a speed of 10 to 20 km/h, and the landing run is 5 to 20m.
To touch down at a speed of 50 km/h maintain such a flight condi-
tion on the glideslope that the airspeed is 20 km/h higher than the
current height value in meters down to a height of 40 m. Maintain
an airspeed of 60 km/h down to a height of 5 to 7 m.
Touch down following the conventional procedure covered above
which yields a landing run of 80 to 100 m.
4.13. Autopilot controlled flight
(1) Flying under the autopilot control is the main flying procedure.
At all stages of flight up to landing the ROLL-PITCH (KPEH-TAHrA}J{)
and YAW (HAnPABnEHVlE) channels should be engaged.
(2) In case of the autopilot disengagement in flight (during its normal opera-
tion) it may be re-engaged in any steady condition of flight.
(3) Engage the autopilot before takeoff by depressing the appropriate chan-
nels switch-lights, and monitor their operation by observing illumination of
the green lights of the engaged channels.
(4) Execution of takeoff and flight with the autopilot engaged is easier than
with the autopilot disengaged and does not require double strokes of the
control stick.
In hovering the autopilot holds bank and pitch attitudes (angles) and, with
the pedals free, yaw attitude, this feature significantly facilitating the heli-
copter flying.
(5) The autopilot is functionally checked in hovering by observing the indica-
tors at the autopilot controller.
Normal operation of the autopilot is displayed by small oscillations of
pointers "K" and "H" of the indicator near the neutral position.
Notes: 1. Pointer "H" of the Indicator should oscillate only with the ped-
als released. If the pilot's feet are on the pedals and the tiptoe
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