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being cooled for two minutes at
IDLE, and it is necessary to restart
the engine, the restart should be accomplished
within five minutes after
shutdown. If the restart cannot be accomplished
within five minutes, the
engine shall be allowed to cool for
four hours before attempting an engine
restart.
13. PWR levers -- OFF after engines have cooled
for two minutes.
14. FUEL panel switches -- Set as follows:
a. EXT TK switch -- OFF.
b. TRANS switch -- OFF.
c. CROSSFEED switch -- NORM.
15. TGT -- Monitor.
16. RTR BK switch -- BRAKE, below 50% Nr.
17. Avionics -- OFF.
18. Set stabilator to 0° (zero).
19. Confirm with CPG that shutdown is complete.
20. RTR BK switch -- OFF (when rotor stops).
21. SRCH LT switch -- STOW.
22. Control locks -- Install.
23. Torque gages -- Note DECU fault codes .
24. GEN 2 and GEN 1 switches -- OFF.
25. APU control switch -- OFF.
26. BATT/EXT PWR switch -- OFF.
27. Ignition key -- OFF and remove.
28. CANOPY JETTISON pin -- Install.
29. Light switches -- Off.
TM 1-1520-238-10
8-16 Change 6
8.28 ENGINE SHUTDOWN -- CPG.
1. SIGHT SEL switch -- STBY.
NOTE
· For TADS OI aircraft, monitor HOD
CRT as TADS/FLIR switch is placed in
OFF. After approximately 15 seconds,
HOD should flash and loss of SYM BRT
control should be experienced. When
symbol brightness is no longer adjustable,
the systemis in independentHOD
mode and power-down can be continued.
· Prior to turning TADS off, ensure
PNVS is turned off to allow proper data
transfer into the TADS non--volatile
memory.
2. TADS switch -- OFF (verify PNVS off).
NOTE
Prior to turning IHADSS off, confirm
TADS power down sequence is complete
by waiting 15 seconds after TADS is
turned off and verifying ORT SYM BRT
switch is inoperative.
3. ORT SYM BRT switch -- Inoperative.
4. IHADSS switch -- OFF.
5. FC SYM GEN switch -- OFF.
6. Weapons select switches -- OFF.
7. CPG ARM/SAFE switch -- OFF.
8. PLT/GND ORIDE switch -- OFF.
9. ADSS switch -- OFF.
10. MSL MODE switch -- STBY.
11. RECORDER MODE switch -- OFF.
12. Avionics -- Off.
13. Control locks -- Install.
14. CANOPY JETTISON pin -- Install.
15. Light switches -- Off.
8.29 BEFORE LEAVING THE HELICOPTER.
1. Armament and pylon safety pins -- Installed.
2. Conduct walkaround.
3. Complete forms. An entry in DA form 2408-13
is required if helicopter was:
a. Flown in loose grass environment.
b. Operated within 10 NM of salt water.
c. Operated within 200 NMof volcanic activity.
d. Exposed to radioactivity.
4. Secure helicopter -- As required.
TM 1-1520-238-10
Section III. INSTRUMENT FLIGHT
8.30 INSTRUMENT FLIGHT. 8.31 INSTRUMENT FLIGHT PROCEDURES.
This helicopter is qualified for operation in instrument
meteorological conditions. Refer to AR 95-1 and FM 1-240.
8-17
CAUTION
TM 1-1520-238-10
Section IV. FLIGHT CHARACTERISTICS
8.32 FLIGHT CHARACTERISTICS - GENERAL.
The safe maximum operating airspeed range is described
in Chapter 5, Section V.
8.33 STABILATOR OPERATION.
The stabilator is normally operated in the automatic
mode. However, the two additional modes available to
the pilot can improve helicopter flight characteristics
during certain maneuvers.
8.33.1 NOE/APPR Mode.
These are:
If the pilot desires to improve
his over-the-nose visibility for landings or during
NOE flight, the NOE/APPR mode may be engaged at
any time. An additional benefit is improved forward
speed control in NOE flight.
8-18
8.33.2 Manual Mode. The manual mode of operation
is particularly useful for positioning the stabilator to
help minimize airframe vibrations when hovering in
crosswinds or tailwinds.
8.34 SLOPE/ROUGH TERRAIN LANDING.
Care shall be exercised when operating
the helicopter on rough terrain.
Damage to the underside antennas
may result.
For slope landings and all ground operations, avoid using
combinations of excessive cyclic and low collective
settings. Where minimum collective is used, maintain
cyclic near neutral position and avoid abrupt cyclic inputs.
If cyclic pitch is required, increase collective
slightly to avoid hitting the droop stops and possible rotor-
blade-to-fuselage contact.
CAUTION
CAUTION
CAUTION
TM 1-1520-238-10
Section V. ADVERSE
8.35 GENERAL
ENVIRONMENTAL CONDITIONS
ice. Any indication that flow is restricted is cause for
application of heat.
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