Electrician’s Mate (EM)
ELECTRICIAN’S MATES stand watch on
generators and switchboards. They maintain and
repair power and lighting circuits, electrical
fixtures, motors, generators, distribution switch-
boards, and other electrical equipment. They test
for grounds, or other casualties, and repair or
rebuild electrical equipment in the electrical shop.
They also maintain motion-picture equipment
aboard ship.
Interior Communications Electrician (IC)
INTERIOR COMMUNICATIONS ELEC-
TRICIANS operate, maintain, and repair IC
systems. These systems include gyrocompass,
voice interior communications, alarm, warning,
ship’s control, entertainment, and plotting. They
also stand watches on related equipment.
Gas Turbine Systems Technician (GS)
The GAS TURBINE SYSTEMS TECHNI-
CIAN rating is divided into two groups: the Gas
Turbine Systems Technician (Electrical) (GSE)
and the Gas Turbine Systems Technician
(Mechanical) (GSM).
The GSEs operate, repair, and perform
preventive and corrective maintenance on the
electrical components of gas turbine engines,
main propulsion machinery, auxiliary equipment,
propulsion control systems, electrical and electronic
circuitry in the engineering spaces, and alarm and
warning circuits.
The GSMs operate, repair, and perform
preventive and corrective maintenance on
mechanical components of gas turbine engines,
main propulsion machinery (gears, shafts, and
controllable pitch propellers), auxiliary equipment
in the engineering spaces, and propulsion control
systems.
SHIP MAINTENANCE
OCCUPATIONAL FIELD
The ship maintenance occupational field
includes the Hull Maintenance Technician,
Damage Controlman, Machinery Repairman,
Molder, Instrumentman, Opticalman, and Pattern-
maker ratings. In the following paragraphs we will
describe these ratings:
Hull Maintenance Technician (HT)
HULL MAINTENANCE TECHNICIANS
plan, supervise, and perform tasks to fabricate,
install, and repair various structures, shipboard
and shore-based plumbing, and piping systems.
Damage Controlman (DC)
DAMAGE CONTROLMEN are qualified in
the skills and techniques of damage control, fire
fighting, and CBR defense. They must be able to
take all measures required to maintain the water-
tight integrity of the ship. They must also be able
to coordinate damage-control efforts and instruct
other ratings in damage-control procedures.
Machinery Repairman (MR)
MACHINERY REPAIRMEN make all types
of machine shop repairs on shipboard machinery.
This work requires skill in using lathes, milling
machines, boring mills, grinders, power hacksaws,
drill presses, and other machine tools. It also
requires skill in using hand tools and measuring
1-7
