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available, an INVALID COMMAND advisory
O 4. Missiles Check as follows: will be displayed.
4-118
TM 1-1520-248-10
6. L-1 Press to perform HELLFIRE BIT. e. Missile symbol Displays RDY and proper
laser code (priority channel).
4-85. IN-FLIGHT PROCEDURES LOBL/ f. Constraints box Displayed as required.
LOAL (AUTONOMOUS/REMOTE).
3. CPG/Remote designator Lase target as
1. CPG. required.
a. Target handover Coordinate as required. NOTE
b. Target Track/Locate/Prepoint as required. Except for AGM-114F missiles, if properly
coded laser energy is present at the missile
c. WPN/ASE switch Press as required to seeker, the RHE will automatically default to
display HELLFIRE Sparse VSD. LOBL.
d. CONSTR key NORMAL. 4. Pilot.
e. LAUNCH key Select mode as required. a. Position and orient helicopter as required.
NOTE NOTE
Wraiitlh, osneele cmtiisnsgil eN iOnsRtaMlle dw iolln rtehseu lotu tibno aarnd • For LOBL engagements, CONSTR ORIDE
INVALID COMMAND advisory due to may be required if the MMS LOS is not in
attempting to select the inboard missile first. coincidence with the HELLFIRE missile
With only one missile loaded, select MAN or seeker cue due to inaccurate MMS
scroll through selections and back to NORM airborne calibration. Ensure the missile is
to select the outboard missile on the primary locked on target and not on backscatter
code. before f i r i n g with CONSTR ORIDE
selected.
f. DELVRY key Select mode as required. • For LOAL engagements, CONSTR ORIDE
may be required based on the tactical
g. Constraints driver(s) Set as required. situation. Ensure the aircraft is properly
oriented toward the target before firing
h. MASTER switch ARMED. with CONSTR ORIDE selected.
2. Pilot. b. Verify the missile is properly tracking laser
energy (LOBL) and within constraint
a. WEAPON SEL switch Select HELLFIRE requirements.
sparse VSD.
c. WPN-FIRE switch Press to second
b. CONSTR NORMAL. detent.
c. LAUNCH mode Verify as required (MAN/ d. Steps a. through c. Repeat as required.
NORM/RIPL).
5. MASTER switch Set as required.
d. DELVRY mode Verify as required (DIR/
LO/HI/LOBL).
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TM 1-1520-248-10
SECTION III. CARGO HANDLING
4-85. TAKEOFF. EXTERNAL CARGO HOOK 2. MMS Stowed as required.
OPERATIONS.
3. ACP Switches set.
NOTE
NOTE
Better directional control may be realized by
avoiding relative winds from the right front If helicopter is landed with heading hold
quadrant while performing external cargo engaged, heading hold may attempt to
operations. correct small heading errors and will drive
pedal to stop if left unguarded.
1. Hover helicopter at sufficient height to allow
crewmember to discharge static electricity O 4. IR JAMMER XMTR switch IR JAMMER.
and to attach sling to cargo hook.
4-88. DESCENT AND LANDING. EXTERNAL
2. Ascend vertically directly over cargo, then CARGO OPERATIONS. slowly lift cargo from surface.
3. Pedals Check for adequate directional 1. Flight path and approach angle As
control. required for wind direction and obstacle
clearance.
4. Hover power Check TORQUE required to
hover with external load. 2. Execute approach to hover with cargo clear of
the surface.
5. Take off into wind, if possible, allowing
adequate sling load clearance over obstacles. 3. When stabilized at a hover, descend slowly
until cargo contracts surface.
4-86. IN-FLIGHT OPERATION. EXTERNAL 4. Maintain tension on sling.
CARGO HOOK OPERATIONS.
5. Cyclic CARGO RELEASE switch Press to
NOTE release sling from hook.
• Control movement should be made
smoothly and kept to a minimum to
prevent oscillation of sling load.
• The EMER CARGO RELEASE PULL
handle will function regardless of CARGO
RELEASE switch position.
1. AIRSPEED Within limits for adequate
controllability of helicopter load combination.
2. Flight path Required to avoid flight with
external load over any person, vehicle, or
structure.
4-87. BEFORE LANDING (CPG/PILOT AS
REQUIRED).
1. LASER OFF/STBY/ARM switch As
required.
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SECTION IV. (CDS2) AIRBORNE TARGET HANDOVER
SYSTEM (ATHS)
4-89. GENERAL. 4-92. OPERATIONAL DESCRIPTION.
To select the ATHS mode of operation, the CPG
presses the ATHS switch on the CPG auxiliary panel
4-90. ATHS MISSION CAPABILITIES. (fig. 4-67). This causes the MFD to display any waiting
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TECHNICAL MANUAL OPERATOR’S MANUAL FOR ARMY OH-58D HELICOPT(127)
