Kazan Helicopters Mi-17-1V Flight Manual page 123

MI1·17·1B. Flight manual
(h) Correct readings of the XTK DISTANCE (km) (60KOBOE
YKnOHEHlt1E - KM) and TRACK (km) (mTb - km) digital readouts
by using visual ground contact and omnirange stations.
(4) When flying along a navigation leg the Pilot-Navigator should proceed as
follows below:
(a) Operate the L (Bn) and R (Bnp) keys to set the XTK DISTANCE
(km) (60KOBOE YKnOHEHlt1E - km) digital readout to zero and the
FWD (B) and BKWD (H) keys to set the TRACK (km) (mTb - KM)
digital readout to zero or to the BACKWARD (HA3A,Q) position
equal to the distance from the initial waypoint to the first enroute
waypoint.
If the TRACK (km) (nYTb - km) digital readout is set to zero the dis-
tance flown from the initial waypoint will be displayed, and if the
readout is set to the BACKWARD (HA3A,[\) the distance to go to the
enroute waypoint will be displayed.
(b) Slave the compass system and select it from the magnetic slaved
(MAG) mode to the directional gyro (DG) mode.
(c) Fly over the initial waypoint on a heading equal to the desired mag-
netic track angle of the first route segment with the drift angle ac-
counted for. At the moment of passing over the initial waypoint start
the dead reckoning by depressing the ON (BKn) key on the co-
ordinate indicator and check it for starting by illumination of the ON
(BKnIOLJEHO) annunciator.
(d) Read the XTK DISTANCE (km) (60KOBOE YKnOHEHlt1E - KM)
digital readout to monitor the magnitude and sign (direction to the
left or to the right) of cross track distance, and read the TRACK
(km) (nYTb - km) digital readout to monitor the distance flown from
the initial waypoint (or the distance to go to the enroute waypoint).
(e) Correct deviations from the desired track by execution of appropri-
ate corrective turns and on intercepting; the desired track continues
flying maintaining the cross track error equal to zero.
(f) Depress momentarily the FORWARD (B), BACKWARD (H), L (Bn)
and R (Bnp) keys to correct readings of the XTK DISTANCE (km)
(60KOBOE YKnOHEHlt1E
-KM)
and TRACK (km) (nYTb - KM) digi-
tal readouts by using visual ground contact and omnirange stations.
(g) Before reaching the enroute waypoint proceed to detailed visual
orientation, refine the helicopter position and prepare the ,[\lt1CC-15
(doppler system co-ordinate indicator for selection to a new naviga-
tion leg (the new route leg), for this purpose proceed as follows:
Stop reckoning of co-ordinates by depressing the OFF (OTKn) key
on the co-ordinate indicator and check the reckoning for deactiva-
tion indicated by going out of the ON (BKnIOLJEHO) annunciator.
Set a chart angle corresponding to the magnetic track angle of the
next route segment on the co-ordinate indicator and its data on the
XTK DISTANCE (km) (60KOBOE YKnOHEHlt1E - krn) and TRACK
(km) (nYTb - km) digital readouts.
Bring the helicopter to a new route segment magnetic heading with
the drift angle accounted for, start reckoning of co-ordinates when
passing the route waypoint, and continue flying maintaining the
cross track distance equal to zero.
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