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and test surface missile and gun fire control systems,
make detailed mechanical electrical and electronic
casualty analyses, and operate associated test
equipment.
OCCUPATIONAL FIELD 9 (ORDNANCE
SYSTEMS).— TMS occupational field includes the
Gunner’s Mate (GM), Mineman (MN), Missile
Technician (MT), and Torpedoman’s Mate (TM).
Gunner’s Mate.—The insignia for the Gunner’s
Mate (GM) rating is the symbol of crossed cannons.
GMs operate and perform organizational and
intermediate maintenance on guided missile launching
systems, missile launching groups, rocket launchers,
guns, gun mounts, turrets, and associated handling
equipment. They test and inspect ammunition and
missiles and their components and supervise personnel
in handling and storage of ammunition and missiles and
their components.
GMs also inspect and repair
magazines and ammunition storage spaces and
supervise crews assigned to ordnance equipment.
The GMs are divided into two categories: (1)
Gunner’s Mates, Guns (GMGs) and (2) Gunner’s
Mates, Missiles (GMMs). Some of their specific
responsibilities are indicated in the next two
paragraphs.
The GMGs operate and perform organizational and
intermediate maintenance on guns, gun mounts, turrets,
handling equipment, and small arms. They test and
inspect gun and rocket ammunition, inspect and repair
magazine sprinkler systems, and make internal
alignments of electrohydraulic gun mounts. GMGs
also supervise personnel in the handling and storage of
gun and rocket ammunition. They direct crews in the
operation of guns, gun mounts, gun turrets, rocket
launchers, and ammunition hoists and handling rooms.
The GMMs perform organizational and
intermediate maintenance on guided missile launching
groups and antisubmarine rocket (ASROC) launching
groups and handling equipment. They service the
pneumatic and hydraulic components of missile
systems and make internal alignments of
electrohydraulic launchers. They also prepare missile
and launching equipment for check-out and firing;
supervise the handling and storage of missiles and
missile components; and test, inspect, and repair
magazine sprinkler systems.
Mineman.— The insignia for the Mineman (MN)
rating is a floating mine.
MNs perform organizational and intermediate level
maintenance on underwater mines and associated
equipment. They assemble, test, store, and transport
underwater mines. They also operate, maintain, and
perform
authorized
m o d i f i c a t i o n s o n
materials-handling equipment, assembly level items,
and test equipment. MNs also perform safety criteria
testing on materials-handling equipment and
participate in fleet mining and exercise training
programs.
Missile Technician.—The insignia for the Missile
Technician (MT) rating is the guided missile.
MTs perform organizational and intermediate level
maintenance on ballistic missile weapons systems.
They also operate and maintain ballistic missile fire
control systems, guidance subsystems, associated
guidance subsystem test equipments, and missile and
launcher/tube groups, along with all ancillary
equipments.
Additionally they operate and perform
maintenance on strategic weapons systems; operate,
test and repair associated ship/weapon subsystem test
equipments, and test and handling equipments.
Torpedoman’s Mate. —The insignia for the
Torpedoman’s Mate (TM) rating is the torpedo.
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