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Full USAAF Heavy Bomber Crew MOS Reference ## Commissioned Officers (4-Digit Codes) |
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| 1091 | — | Pilot, Four-Engine (Aircraft Commander / Co-Pilot) |
| 1092 | — | Pilot, Four-Engine (B-24 Specialist variant found in early 486th logs) |
| 1034 | — | Navigator (Celestial / Dead Reckoning) |
| 1035 | — | Bombardier (Operated the Norden bombsight / Nose gunner) |
| 1038 | — | Navigator-Bombardier (Radar/H2X "Mickey" Operator for lead ships) |
## Enlisted Flight Crew (3-Digit Codes) |
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| 748 | — | Airplane Mechanic-Gunner (Flight Engineer / Top Turret) |
| 757 | — | Radio Operator-Mechanic-Gunner (Radio Operator / Waist or Radio Gun) |
| 612 | — | Airplane Armorer-Gunner (Armament Specialist / Ball Turret or Waist) |
| 611 | — | Aerial Gunner (Pure combat gunner / Tail Turret or Waist) |
| 911 | — | Flexible Gunnery Instructor (Occasionally flew combat missions) |
## Ground Support & Squadron Headquarters (Commonly found in daily orders) |
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| 4823 | — | Aircraft Maintenance Officer (Officer in charge of the ground crews) |
| 0502 | — | Squadron Intelligence Officer (Briefed/debriefed the crews on targets) |
| 747 | — | irplane Mechanic (The dedicated ground crew/crew chiefs who stayed in Sudbury) |
| 511 | — | Armorer (Ground crew who loaded the bombs onto the planes) |
| 505 | — | Ammunition Renovation Specialist / Munitions worker |