WW2 MOS decsriptions from 1944

There are MANY MOS descriptors used in the Army, these cover the majority of men in combat units

Common MOS definitions

Every job in the Army was assigned a description known as the Military Occupational Specialty. Each MOS was known by a number: the SSN (Specification Serial Number). The following is a sample of some of the more common ones from WW2 taken from TM12-247 12 July 1944. Some positions, noted as (AAF) are specific to Army Air Force units. The following listings indicate MOS and SSN, following by a list of the positions that could be held by men with that MOS, a description of the MOS itself, and a list of similar MOSs from which men could be assigned if needed.

Carpenter, General (SSN 050)

Cabinetmaker Carpenter,

ConstructionCarpenter (AAF)

Packing Case Maker

Performs a variety of carpenter tasks in connection with the construction and repair of buildings, drainage systems, waterworks, airports, motion pic. ture sets, and related structures.

Repairs and replaces stringers. Builds frames, lays floors, and puts up partitions. Erects concrete forms and scaffolds. Installs doors and windows. Erects and installs guard rails.

Packs and crates material and builds bracing and framing to hold boxes and crates in place-in freight cars, ships, airplanes, or other means of transportation. Constructs special devices for transportation of acids, explosives, and other delicate items.

Must be able to work from blueprints and drawings. Should be able to construct cases and have knowledge of corrosion proof packing.

SUGGESTED SUBSTITUTE

202 Carpenter, Ship

Cook (SSN 060)

Prepares food for the personnel of a military organization, using a daily menu as a guide.

Seasons and cooks meats, soups, desserts, vegetables, sauces, and gravies in accordance with military methods of food preparation. Must be familiar with regulations governing kitchen sanitation. Must be capable of setting up and operating field range.

SUGGESTED SUBSTITUTE

017 Baker

Utility Repairman (SSN 121)

Maintenance Man

Mechanic, General

Keeps buildings and equipment of a unit or post in good repair and working order by performing a wide variety of maintenance tasks.

Constructs simple articles, such as rough-finish tables, training aids, gun racks, shelves, and partitions, using carpenter's tools or any other hand tools which are available. Follows oral instructions, rough sketches, and diagrams. In the field, improvises expedients in making temporary repairs to equipment when replacement parts are unavailable.

May assist second echelon maintenance men, such as auto mechanics, electricians, or artillery mechanics.

Should have an elementary knowledge of and skill in maintenance of machinery, carpentry, plumbing, painting, and electricity.

Rigger, general (SSN 189)

Performs all types of general rigging work on military construction, manufacturing, shipping, reclamation, and other activities. Raises and moves heavy equipment, using derricks, cranes, gin poles, A-frames, cableways, and chain blocks. Sets up, braces, and rigs hoisting equipment, splices rope or steel cable, and reeves and runs rope and guy wire.

Uses such equipment as rope, steel cable, chain, hooks, snatch blocks, pulleys, ax, sledge, wrenches, knife, and other small tools.

Must be able to climb. Must know knots, splices, correct method of moving heavy objects, and safety precautions to be followed in moving heavy equipment.

SUGGESTED SUBSTITUTE

100 Structural. Steel Worker

Driver truck light (SSN 345)

Ambulance Driver

Chauffeur

Automotive Equipment

Dispatcher-Driver Operator (AAF)

Truckmaster

Drives auto or truck (21/2-ton capacity, or less) to transport personnel and equipment.

Checks operation of lights, brakes, steering mechanism, and other operating parts. Services, cleans, and lubricates vehicle. Tightens and replaces nuts, bolts, screws, and studs. Repairs flat tires. Camouflages vehicle. Accomplishes standard vehicle report forms.

Uses pliers, jack, crank, wrenches, screw driver, oiling can, and tire iron.

Should know general principles of the internal combustion engine, power transmission, and electrical system in an automotive vehicle. Must know civilian and military traffic regulations, convoy rules and road discipline. Must know how to read maps and overlays and be able to drive at night and during blackout over all types of terrain. Must possess Army Motor Vehicle Operator's Permit.

At supervisory level, is responsible for dispatching and routing of vehicles and column control of small motor convoys.

Clerk Typist (SSN 405)

Addressing Embossing Machine Operator

Clerk, Company

Clerk, Battery

Clerk, Headquarters

Administrative and Technical Clerk

Personnel Clerk

Typist

Vari-Typist

Chaplain's Assistant

Performs numerous clerical and typing duties in a military organization.

Uses typewriter to prepare mimeographs, stencils, military correspondence, indorsements, reports, and standard forms peculiar to military administrative and personnel matters. Uses a graphotype machine to emboss information on metal tabs for use with addressograph equipment. Distributes, classifies, and files correspondence. Keeps alphabetical and numerical file in accordance with military methods. Opens mail, receives, and transmits telephone messages and routes correspondence.

Must be able to type accurately at approximately 35 words per minute or better. Must have good general knowledge of military filing classification system. Must understand the structure of military correspondence.

Should be familiar with preparation of military forms such as morning reports.

Administrative NCO (502)

Administrative Inspector

Administrative Specialist (AAF)

Chief Clerk

Personnel NCO

Sergeant Major

Supervises and directs work of one or more administrative sections of a headquarters organization in the preparation of correspondence, records, forms and orders.

May supervise the preparation of reports, correspondence, records, and forms on personnel matters including payrolls, special orders, courts-martial proceedings, morning reports, sick reports, rosters , leaves, furloughs and discharges, May keep a staff journal and policy file. Must be Familiar with operation of the unit to which assigned.

Suggested substitutes

055 Clerk, General

213 Stenographer

405 Clerk-typist

Basic 521 BASIC (SSN 521)

This classification will be used to designate enlisted men in the following categories:

(1) Personnel who are undergoing basic training.

(2) Personnel who have completed basic training and are undergoing unit training, but are not yet qualified for an MOS.

(3) Personnel who have proved unqualified in an MOS previously held and are reassigned for training in another specialty.

Enlisted men classified under this number will be constantly observed and tested to determine their potentialities, and this knowledge will be utilized to develop these individuals into military occupational specialists.

DEMOLITION SPECIALIST (533)

Demolition Technician (AAF)

Engineer, Explosive

Flame Thrower

Destroys or makes unserviceable, by means of explosives, such objects of military importance as bridges, roads, buildings, airdromes, ammunition dumps, - fuel dumps, and railways to cover retreat of retiring forces and to delay the advance of the enemy.

Determines size, type, and placement of explosives to be used according to the object to be demolished. Inserts detonating fuze or electrical wires. Places explosives in drilled holes or secures explosives to object. Lights fuze with match or connects electrical wires, according to the method of explosion to be used. Inspects and repairs unexploded charges. Must be familiar with the safety precautions to be taken in the handling and application of explosives.

May perform such miscellaneous tasks as blasting stumps or rocks for road construction and blasting underwater debris for the construction of docks and clearance of harbors. May operate flame thrower as tactical situation demands.

Equipment used includes,hand powered earth and wood augers, shovel, pick, cap crimpers, and small hand powered electrical generator.

SUGGESTED SUBSTITUTE

729 Pioneer

COMMUNICATIONS CHIEF (SSN 542)

Communication Sergeant

Communication Technician (AAF)

Radio Sergeant

Signal NCO

Wire Sergeant

Supervises a communication section in the installation, operation, and minor maintenance of two or more of the following communication facilities; wire, radio, or air-ground contact.

Supervises the laying, testing, maintenance, and recovery of wire. Selects location and directs installation of central and substations. Directs telephone, telephone switchboard, telegraph, teletypewriter, or radio operators in receipt and transmission of calls or messages. Superintends air-to-ground, ground-to-air, radio, and fixed airways communication systems. Utilizes other miscellaneous signal devices such as panels, signal lamps, and pyrotechnics. Supervises adjustment, maintenance, and minor repair of equipment used, including radio sets, field telephones, switchboards, and wire lines. Instructs and trains personnel of unit in techniques of field communication. Prepares rosters and distributes work among various teams.

Should be familiar with various means of signal communication such as message center operation, radio network operations, wire construction, telephone switchboard and teletypewriter operation, and miscellaneous communication facilities.

MESSAGE CENTER CLERK (SSN 667)

Code Clerk

Messenger-Dispatcher

Message Center Chief

Panel and Code Clerk

Receives and logs incoming and outgoing messages, communications, and publications in a message center and distributes them in accordance with prescribed procedures.

Records time on incoming and outgoing communications, messages, and publications, and distributes incoming messages according to a distribution code. Maintains a log indicating date and time of receipt, means of transmission and time of delivery of messages. Encodes and decodes messages in accordance with standard operating instructions.

Must have a general knowledge of the methods of operation of signal communication agencies, must have a thorough knowledge of the staff organization of his own unit, and a general knowledge of the organization of other units with which signal communication is maintained.

May act as a messenger. May drive a light truck. Knowledge of typing desirable.

At supervisory level, is responsible for control and coordination of message center operations and personnel.

SUGGESTED SUBSTITUTES

055 Clerk, General

405 Clerk-Typist

FIELD LINEMAN (SSN 641)

Field Wire Chief

Field Wire NCO

Lineman

Works as member of team in laying, maintaining, and taking up the wire or cable of a telephone or telegraph communication system.

Runs wire along the ground by guiding it from a wire reel of a wire truck. Fastens wire to poles, stakes, or trees, and carries it across roads or other obstructions by burying it in a shallow ditch or suspending it from trees, telephone poles, or lance poles. Locates and determines the cause of line trouble such as opens, shorts, and grounds by testing wire at intervals. Makes appropriate repair, such as splicing breaks and cutting out defective wire and splicing. May operate a portable field telephone switchboard. May establish telegraph circuits by superimposing them on existing telephone circuits, using repeater coils. May drive telephone repair truck.

Equipment used includes wire cutters, pliers, wire, insulators, climbers, lineman's belt, wrench, hammers, reel carts and reels, friction tape, loading coils, field telephones, switchboard, and repeating coils.

SUGGESTED SUBSTITUTES

238 Lineman, Telephone and Telegraph

650 Telephone Switchboard Operator

MESSAGE CENTER CHIEF (SSN 674)

(Specification Serial Number 667 will be used for Message Center Chief assigned to units below a division.)

Directs and coordinates all phases of message center operations at a divisional or higher level to insure the transmission of all messages with the utmost speed, accuracy, and security. Supervises and instructs message center personnel in the func. tion of a message center and in the performance of individual assignment.

Must thoroughly understand the use and relative advantages and limitations of the various means of communication as they pertain to security, transmission speed, traffic capacity and current effectiveness for the type of message to be transmitted.

Must be able to encipher and decipher, or encode and decode classified messages and understand the operation of all cryptographic equipment and cryptographic systems peculiar to the unit. Must have cryptographic clearance.

SUGGESTED SUBSTITUTES

667 Message Center Clerk

805 Cryptographic Technician

LIGHT MACHINE GUNNER (SSN 604)

Ammunition Bearer

Machine Gun NCO

Loads, aims; cleans, maintains, and fires a light machine 'gun to provide automatic direct fire against enemy personnel and light armored vehicles.

Estimates ranges and sets sights. Field-strips weapon with combination tool to replace worn or damaged parts or to reduce stoppages.

At supervisory level, is responsible for control and coordination of machine gun squads and tactical employment of weapons.

Must be capable of making rapid and accurate range estimation and determining the speed of moving targets. Must be able to use hand weapons, such as rifle, automatic rifle, carbine, pistol, bayonet, trench knife, and hand grenades. Must be proficient in the techniques of hand-to-hand fighting.

SUGGESTED SUBSTITUTE

605 Heavy Machine Gunner

746 Automatic Rifleman

HEAVY MACHINE GUNNER (SSN 605)

Ammunition Bearer

Antiaircraft Machine Gunner

Machine Gun NCO

Loads, aims, cleans, maintains, and fires heavy machine gun to provide automatic direct or indirect fire in support of other tactical units breaking through enemy defense, harassing enemy troops and positions, and in defense against enemy aircraft, light armored vehicles, and enemy counterattack.

Estimates ranges and sets sights. Field-strips the weapon with a combination tool to replace worn or

damaged parts or to reduce stoppages. Fires the weapon from a fixed or mobile position at fixed

or moving targets, using either direct or indirect fire. At supervisory level, is responsible for control and coordination of machine gun squads and tactical employment of weapons.

Must be capable of making rapid and accurate range estimation, and determining the speed of moving targets. Must be able to fire on moving targets such as airplanes without use of sights, by observation of tracer. Must be able to use hand weapons, such as rifle, automatic rifle, carbine, pistol, bayonet, trench knife, and hand grenades. Must be proficient in the techniques of hand-to-hand fighting.

SUGGESTED SUBSTITUTES

604 Light Machine Gunner

746 Automatic Rifleman

LIGHT MORTAR CREWMAN (SSN 607)

Ammunition Bearer

Mortar Gunner

Mortar Assistant

Mortar NCO

Sets up, aims, and fires a 60-mm mortar to place explosive or toxic gas shells upon enemy positions.

Emplaces mortar and sights in on aiming stake. Adjusts mortar for elevation and deflection. Uses firing tables to determine necessary charge and adjusts charge of mortar shell by removing necessary number of increments to give correct auxiliary propelling force. Fires weapon by dropping shell into mortar to strike firing pin.

At supervisory level, is responsible for control and coordination of mortar crews and tactical employment of mortars.

Must be able to estimate range and deflection rapidly and accurately.

SUGGESTED SUBSTITUTE

1607 Heavy Mortar Crewman

Medical Aidman (SSN 657)

First-Aid Man

Medical Basic

Hospital Orderly

Medical Corpsman (AAF)

Litter Bearer

Performs various duties to assist .technicians in medical department activities.

Administers first-aid treatment to sick, injured, or wounded. Treats minor injuries and wounds, such as cuts, blisters, contusions, and lacerations, applying medicants and bandaging wounds. Makes and applies arm or leg splints, treats patients for shock, and stops bleeding by approved methods. Lifts patient onto litter, and carries to aid station, ambulance loading point, or collecting station.

Performs routine duties in the care and treatment of patients, taking temperature and pulse readings, bathing and feeding patients, and preparing patients for operations. Makes beds, cleans and washes equipment and floors, and assists in sterilizing instruments. Performs related duties as directed.

Must have received medical basic training.

MILITARY POLICEMAN (SSN 677)

Provost Sergeant

Assists in the enforcement of military laws and regulations, maintenance of order, and control of traffic.

Assists civilian police in securing compliance with civil laws by military personnel. Protects civilians and military personnel from violence in areas under military jurisdiction.

Furnishes information regarding location of units and other establishments. Guards property in defense areas against sabotage. Quells uprisings and outbreaks in areas under guard. Prevents and investigates criminal action. Accepts custody of enlisted men who have been apprehended by civilian police for minor violations. Controls stragglers and circulation of individuals.

May receive and act as guard of military prisoners, including their custody, care, processing, and evacuation. May supervise other military policemen in carrying out police or guard functions.

Must be tactful and courteous and be an outstanding example of soldierly conduct and bearing. Must understand duties of a military police organization and the regulations which apply to its organization. Must have knowledge of use and care of hand weapons such as pistol, riot gun, and submachine gun.

MEDICAL AIDMAN (SSN 657)

First‑Aid Man Medical Basic

Hospital Orderly Medical Corpsman (AAF)

Litter Bearer

Performs various duties to assist .technicians in medical department activities

Administers first‑aid treatment to sick, injured, or wounded. Treats minor injuries and wounds, such as cuts, blisters, contusions, and lacerations, applying medicants and bandaging wounds. Makes and applies arm or leg splints, treats patients for shock, and stops bleeding by approved methods. Lifts patient onto litter, and carries to aid station, ambulance loading point, or collecting station.

Must have received medical basic training.

Operates as member of crew of specially trained troops in constructing and repairing roads and bridges, removing natural and man-made obstacles to facilitate movement of friendly forces, executing demolitions, and creating man-made obstacles to prevent or slow advance of enemy forces.

In advances against enemy, precedes friendly forces and clears passage ways. Makes temporary repairs to roads which may have been destroyed, such as filling in bomb crater holes. Makes repairs to demolished bridges or erects temporary bridges. Sets up, braces, and rigs lighter vehicles which cannot ford a stream and pulleys them across, using logs, heavy rope, and wire. Disables and removes antitank land mines, toad blocks, and wire entanglements laid by enemy forces. In retreat from enemy, remains behind to impede enemy advance. Employs dynamite to blow up bridges, roads, and buildings. Lays antitank land mines and other dynamite traps to disable enemy vehicles. Creates obstacles, such as erecting road blocks with logs or wire. May operate outboard motors.

Equipment includes air compressors; demolition sets, consisting of supplies of dynamite, primer cord, time fuzes, and electric and nonelectric firing caps; pioneer sets, consisting of hammer, saw, ax, machetes, grappling hooks, 36-inch wrecking bars, -and 5-foot crow bars; heavy rope and wire.

At supervisory level is responsible for coordination and control of group men engaged in pioneer or demolition activities.

Loads, aims, and fires a rifle to destroy enemy personnel and to assist in capturing and holding enemy positions.

Places fire upon designated targets or distributes fire upon portions of enemy line, changing position as situation demands.

Must be able to use hand weapons, including rifle, automatic rifle, rocket launcher, rifle grenade launcher, bayonet, trench knife, and hand grenades. Must be trained in taking advantage of camouflage, cover and concealment, entrenching, recognition and following of arm and hand signals, and recognition of enemy personnel, vehicles, and aircraft. Must be familiar with hand-to-hand fighting techniques. Must understand methods of defense against enemy weapons.

Loads, aims, and fires an automatic rifle to provide fire power support to tactical units in capturing and holding enemy positions.

Fires rifle either semi-automatically or in short bursts, as situation demands, upon designated targets or distributed upon portions of enemy lines, changing position as situation demands. Reduces stoppages as they occur and cleans and oils piece.

Must be able to use hand weapons, including rifle, automatic rifle, rifle grenade launcher, bayonet, trench knife, and hand grenades. Must be trained in taking advantage of camouflage cover and concealment, recognizing and following arm and hand signals, and identification of enemy personnel, vehicles, and aircraft. Must be familiar with hand-to-hand fighting techniques. Must understand methods of defense against enemy weapons.

Obtains information concerning strength, disposition, and probable intentions of enemy forces, route conditions, locations for bivouac, and terrain features in order to facilitate tactical employment and maneuver of friendly troops, and prevent surprise attack.

Applies scouting and patrolling principles in searching terrain for sign of enemy activity, operating from an observation post, on foot, or mounted, Records observations and transmits by the best available means of communication.

Based on observations of activity and disposition must be able to estimate strength of enemy detachments and arrive at a logical conclusion as to their probable intentions. Must be able to read maps and aerial photographs, make sketches, and use compass and field glasses. Must be able to determine, by observation and inspection, what - load may be moved over bridges and roads on route of advance of friendly troops. Must be proficient in use of weapons with which armed. Must possess excellent visual memory. Must be able to remain oriented in unfamiliar territory.

At supervisory level, is responsible for control, coordination, and tactical employment of reconnaissance crew.

Assists operations officer in maintaining current military intelligence as to location and strength of friendly and enemy troop units, preparing plans for tactical employment and disposition of troops in attacks against enemy forces and the strategic withdrawal of troops in retrograde movements.

. . Maintains ground or aerial photo map of combat area on which is currently posted all military information received from intelligence units pertaining to location, strength, and disposition of friendly and enemy units, using colored pins, conventional Army signs, and other markers. Maintains diary or log of military activities and other incidents in which unit is involved. Assists in preparation of tactical plans concerning attacks against enemy forces and withdrawal of troops. Supervises typing and clerical work required in preparation of combat orders. Prepares map overlays or sketches issued with combat orders. Routes combat orders and map overlays to units concerned.

Equipment includes drafting boards, drafting pens, overlay paper, stereoscopes used in reading and interpreting aerial photos, and protractors used to locate points on maps.

Must know general organization of arm or service to which assigned and be familiar with its tactical employment and technique. Must be able to read maps accurately. Must be able to use stereoscopes and interpret aerial photos. Must be able to prepare map overlays using drafting table, overlay paper, and drafting pens.

Supervises and- controls the activities of mess personnel in garrison or field kitchen installations.

Prepares menus from a master menu. Supervises the preparation of food in accordance with established sanitary and dietetic principles. Makes authorized requisitions and purchases of supplies. Inspects delivered supplies for condition and proper quantity and inspects stored food for spoilage. Keeps record of supplies, equipment, and mess account.

Must have sufficient knowledge of dietetics to maintain a balanced diet. Must be able to direct and control the preparation of palatable meals under unfavorable field conditions. Must be familiar with Army methods of accounting and inventory as they apply to food.

Ammunition Handler Ammunition Noncommissioned Officer Cannoneer Gunner Infantry Cannon Crewman

As a member of a 75-mm howitzer, 105-mm howitzer or gun artillery crew using fixed or semifixed ammunition, assists in moving, emplacing, firing, displacing, and withdrawing the piece in combat operations.

Performs one or more of the following operations during the firing mission: sets horizontal angle from established position by means of a panoramic sight, and manipulates gun traverse wheel to place gun on target: Makes additional changes in angular deflection as directed, to achieve fire precision or to transfer fire to other targets. Sets target range on range drum and target angle of site on angle-of-, site scale. Carries, inspects, cleans, and passes ammunition. Attaches fuze to projectile using fuze wrench. Sets fuze for quick or delayed action, using fuze setter. Opens and closes breech and loads piece by hand, pushing round into breech until firmly seated. Fires piece by pulling hand lanyard. Using rammer and rammer staff' removes unfired rounds or cartridge cases which cannot be ejected by extractor. Inspects bore and swabs with water. Cleans breech. When semifixed ammunition is used, removes projectile from cartridge case, withdraws excess powder increments and assists in such maintenance operation as cleaning, oiling, and rustproofing vital parts of gun. As member of 105-mm howitzer crew, places projectiles on loading barrow, using rammer to seat projectile in breech recess, removes and inserts 'powder charge, and inserts primer in firing mechanism block.

At supervisory level, is responsible for control, coordination, and tactical employment of light artillery pieces and crew members.

845 Gun Crewman, Heavy Artillery 864 Gun Crewman, Medium Artillery 1531 Gun Crewman, Pack Artillery

As crew member of a 240-mm howitzer or 8-inchgun, or heavier caliber artillery gun or howitzer using separate loading ammunition, assists in moving, emplacing, firing, and withdrawing the piece in combat operations.

Performs one or more' of the following operations during firing mission: sets horizontal angle from established position by means of panoramic sight and manipulates traverse wheel to place gun target. Makes additional changes in angular deflection as directed, to achieve fire precision or to transfer fire to other targets. Sets target range on range drum and target angle of site on angle-of-site scale. Opens and closes breech. Inspects and cleans projectile to prepare for loading and attaches fuze using fuze wrench. Sets fuze for quick or delayed action, using fuze setter. Places projectile on loading barrow, using rammer to seat breech recess. Removes powder charge from container and inserts it in- breech recess. Inserts primer in firing-mechanism block. Fires piece by pulling band lanyard. After misfire removes unfired round, using rammer and rammer staff. Inspects bore and swabs with water. Cleans breech and firing mechanism block. Assists in such maintenance operations as cleaning, oiling, and rustprooftng of vital parts of gun.

At supervisory level, is responsible for control, coordination, ' and tactical employment of heavy artillery pieces and crew members.

844 Gun Crewman, Light Artillery 864 Gun Crewman, Medium Artillery 1531 Gun Crewman, Pack Artillery

Supervises activities of a light weapons unit, comprising light (30-caliber) machine guns and light (60-mm) mortars, to provide fire power in support of other tactical units in attack and defense.

Selects positions for weapons, taking advantage of cover and concealment. Furnishes firing datasuch as range and deflection. Deploys unit as the tactical situation demands.

Must be familiar with firing problems in difficult terrain. Must be capable of rapidly and accurately estimating range and angle of fire. Must be familiar with use of compass, map reading, and range computation from firing table.

As member of crew of a medium tank or medium tank-mounted assault gun used in the attack of enemy positions, performs one or more of the following duties: Drives the vehicle to secure maximum fire effect without undue exposure to enemy fire. Operates the radio to maintain communication with other elements. Fires weapons of vehicle, including cannon and machine guns, to destroy enemy personnel, lines of communication, vehicles, pill boxes, and other targets, and to protect vehicle against attack. Inspects and checks engine, ail levels, innerphone headset communication, radio, vehicle operating equipment, turret mechanism, tracks, bogie wheels, ammunition, and weapons. Cleans and services .30- and .50-caliber machine guns and cannon, and bore-sights cannon.

At supervisory level, is responsible for control, coordination, and tactical employment of tank and crew member.

Must have sufficient knowledge of tactical employment of armored vehicles to be able to anticipate commands, take advantage of cover, and maneuver to obtain targets. Must be skillful in entering and leaving vehicle under combat conditions and capable of fighting with hand weapons when dismounted. Must be familiar with gunnery techniques of direct and indirect fire.

660 Tank Mechanic, Minor Maintenance 844 Gun Crewman, Light Artillery 1736 Light Tank Crewman

As a member of a gun crew, performs one or more of the following duties incident to firing and maintenance of a self-propelled 37-mm gun, 40-mm gun, or similar automatic piece used for protection of combat elements or strategic areas from enemy aircraft or mechanized vehicles.

Passes ammunition to loader or loads clips and places them around gun. Inserts clips into autoloader and adjusts firing lever.

If firing with director control, fires by pressing on foot pedal. Roughly aligns gun and director and throws gun into automatic control by operating gun sleeving clutch and elevation switch. Checks bore sighting and pulls rope tied around foot of firer when command to cease firing is given.. Tracks target, using direct fire sights, operates deflection handle, estimating lateral and vertical leads and applying them to sighting system.

When firing without electrical director control, operates azimuth or elevation forward area sights, tracking target by sighting through direct fire sights and manipulating cranks, rotating gun. As elevation .tracker, fires piece by pressing on foot pedal. Indicates target, gives or repeats commands to fire and adjusts fire by verbal order.

Sets up and operates machine gun or acts as ammunition man for machine gunner, covering with fire dead space immediately over gun position. Acts as lookout, reporting approach of enemy planes.