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Do not touch the vicinity of the IR dome
if it is cracked or shattered (basic CFT CAUTION
and missile only); mercury thallium liquid
may have been released. This material is
toxic to unprotected skin. Avoid all To prevent damage to Captive Flight
contact with the released material unless Trainer (CFT) or missiles, do not exceed
protective equipment is worn, such as: a 5 minutes of continuous activation for
respirator, impervious protective gloves, the basic MSL and 3 minutes for the RMP
and chemical goggles. If the skin or eyes MSL.
are exposed to the spilled material,
immediately flush with water. Any person 1. CPG.
exposed to the released material should
be promptly referred to a physician. NOTE
1. Einjsetcatlloerd .rack Check; impulse cartridges • MMS prepoint should be checked prior to
using the MMS method of engagement. If
2. Coolant bottle Check for 4500 to 6000 psi. the prepoint target is not in the MMS
If less than 3500 psi, coolant bottle must be NFOV, an Airborne Calibration should be
recharged. performed.
3. Missile launcher Check. • Estimated range must be within missile’s
capability.
O 4. Missile Check as follows: • The CPG should monitor missile tone
O a. Blowout disk Check. during the engagement process, alerting
b. Electrical connections Check. the pilot to momentary breakups in tone.
Breakups in tone indicate that the missile
c. Humidity indicator Check (green). has a marginal track of the target and
should not be fired. This is particularly
O d. IR cover Remove. important during the superelevation
e. Seeker head Check. maneuver.
f. Missile type Record missile type installed a. Target Establish target track with MMS.
on each store station as BLOCK 1 or allother
Stinger. See WARNING in In-Flight b. Laser range finding Complete as desired.
Procedures paragraph on how to positively
identify Block 1 missiles. c. WPN/ASE switch Select ATAS sparse
weapons VSD.
4-75. ENGINE RUNUP. d. SLAVING key Select seeker slaving
1. MASTER switch STBY. mode as required.
4-104
TM 1-1520-248-10
e. UNCAGE key Select uncage mode as h. Verify Tracking reticle stable with MMS
required. LOS cue.
f. MASTER switch ARMED.
i. Verify ATAS audio tone.
2. Pilot.
NOTE
a. WEAPON SEL switch Select ATAS.
b. SLAVING mode Verify as required. • Do not activate missile until target has
been identified and engagement i s
c. UNCAGE mode Verify as required. imminent. A fully charged coolant bottle
(6000 psi) will provide forty 45-second
d. MSL ACTVT switch Press. engagements. Do not exceed 5 minutes of
continuous activation for the basic MSL
and 3 minutes for the RMP MSL.
e. Maneuver helicopter to place MMS LOS cue
(diamond) over the weapons reference symbol (cross at center of display). • Low pressure (less than 3500 psi) in the
coolant bottle causes LOW to display on
the PDU on the side of the PDU on which
f. If Slaving is enabled, place weapons the launcher is located, and a LEFT
reference symbol to within 6 degrees of COOLANT LOW or RIGHT COOLANT
MMS LOS cue.
LOW advisory to display on the MFD.
NOTE • Exact coincidence may not occur.
However, helicopter movement resulting
in stabilized relative position of MMS LOS
The seeker slaving mode, when equipped CUE and tracking reticle indicates that
and enabled, allows the pilot to acquire the missile and the MMS are tracking the
without meticulous alignment of the same target.
helicopter (hence missile) to the target.
Aligning the weapons reference symbol to
within 6 degrees of the MMS LOS cue prior • Momentary breakups in tone indicate that
to pressing the WPN-FIRE switch to the first the missile has a marginal track on the
detent is normally adequate to acquire the target and should not be fired.
target. Firing constraints remain unchanged
in the seeker slaving mode.
j. P i t c h a t t i t u d e S u p e r - e l e v a t e t h e
g. WPN-FIRE switch Press to first detent helicopter until the superelevation bar aligns
and hold to uncage missile seeker. with the top of the helicopter reference
symbol. Verify that an uninterrupted high
tone is present.
NOTE
k. WPN-FIRE switch Press and hold for one
Noise from an operating heater will degrade second.
radio and intercom communication and the
ability of the pilot and CPG to properly
distinguish ATAS acquisition tones. 3. MASTER switch Set as required.
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TECHNICAL MANUAL OPERATOR’S MANUAL FOR ARMY OH-58D HELICOPT(121)
