Updated: April 2021

What does a 4M0X1 do?

Operates and maintains aerospace physiology training devices including altitude chambers and related training equipment. Instructs and observes on simulated flights to altitude, instructs in a classroom, and manages aerospace and operational physiology facility/facilities. Trains flying/non-flying personnel in subjects such as aircraft pressurization, night vision, emergency first aid, oxygen equipment, physiological effects of altitude, human performance, spatial disorientation, sensory phenomena, noise/vibration, cockpit/crew/maintenance resource management, situational awareness, acceleration, and emergency escape from aircraft. Other areas of responsibility include high altitude airdrop mission support (HAAMS), personal parachute program participation when assigned to the “J” prefix manning position; parachute familiarization training, Aerospace and Operational Physiology team training, high altitude reconnaissance mission support (HARMS), fighter aircrew acceleration training, and limited hyperbaric chamber operations. Manages associated aerospace and operational physiology programs.

Where and How Long is the Tech School For a 4M0X1?

Tech School

42 Days - Wright Patterson AFB, OH


Aerospace Physiology Technology

What Does the 4M0X1 Duty Badge Look Like?

Enlisted Medical Badge

What are the Demographics for the 4M0X1 Career Field?







Total: 259

What are the Requirements to Become a 4M0X1?


General: 44


40 lbs

  • Clear voice without speech impediments.

What are the Duties and Responsibilities For a 4M0X1?

Assists the aerospace physiologist in the planning and implementation of aerospace and operational physiology program activities. Schedules and operates low-pressure chambers to simulated changes in barometric pressure experienced in flying. Controls pressure inside chamber, monitors air and oxygen pressure, altimeters, vertical velocity indicators, humidity, temperature and other instruments indicating chamber environmental conditions. Operates full-pressure suit controls and associated equipment to adjust pressure inside full-pressure suits and helmets. Operates hypobaric/hyperbaric chambers and centrifuge for aircrew training and physiological research. In clinical settings, assists medical officers and performs hyperbaric observer duties. Performs operational support flying duties in support of HAAMS operations. Participates in parachuting activities when assigned to the “J” prefix manning position. Operates weapon system procedural and swing/descent landing trainers. Operates and logistically supports the Reduced Oxygen Breathing Device. Establishes routine storage, inspection, and maintenance procedures for aircrew flight equipment and replacement parts used by physiology training program. Develops and implements programs designed to enhance safety, mission effectiveness, and provide just-in-time training to aircrew and support personnel on human performance/human factors issues. Serves/assists as human factors consultant for flight, ground, weapon, and space mishap boards. Interacts with flight medicine, wing safety and other base agencies as performance enhancement expert.

Conducts training and testing with aerospace and operational physiology devices. Briefs trainees before hypobaric chamber flights and other types of physiological training. Questions trainees for disqualifying defects requiring referral to aerospace physiologist or flight surgeon. Acts as inside and outside observer/crewmember during chamber flights, training sessions, altitude chamber research and centrifuge operations. Observes students for signs of hypoxia, decompression sickness, and other physiological injury or illness. Administers tests on physiological data and equipment covered in lectures and trainer indoctrination. Records information on chamber flights, trainer use, student reactions and symptoms, and operator performance. Briefs students on proper parachute landing fall techniques. Fits, inspects and maintains full pressure suits, survival kits and associated equipment. Supports associated flight operations.

Instructs in the aerospace and operational physiology program. Conducts lectures, discussions, and demonstrations to indoctrinate flying, parachuting and non-flying warfighters on physical and physiological stresses and human performance implications of military aviation, space operations, and worldwide deployment environments. Discusses physiological factors involved in acceleration, exposure to thermal burden, pressurized cabins and rapid decompression, high altitude escape, vision, theory of operation for night vision devices, sensory illusions and various in-flight oxygen emergency situations. Instructs students in use of oxygen masks, full-pressure suits, anti-gravity suits, flight clothing, emergency and portable oxygen systems, night-vision goggles, anti-buffeting helmets and other high altitude protection equipment. Instructs and supervises trainees in fitting, adjusting, and maintaining oxygen masks and other personal equipment, and use of oxygen regulators, ejection seats, and crew worn equipment. Instructs proper landing procedures and swing landing trainer procedures. Advises and consults with aerospace and operational physiologists on matters regarding course curriculum and preparing training materials. Reviews mishap investigation and safety reports to develop training designed to prepare combat forces for mission effectiveness.

Prepares and maintains records. Records information on types and duration of hypobaric chambers, trainer use, and participation of students and operator personnel. Records occurrence and severity of symptoms of decompression sickness, adverse reactions, and other physiological or psychological disturbances caused by chamber flights. Maintains individual records of training completion. Prepare reports and collects data on special tests.

Maintains and modifies training equipment. Performs simple maintenance on low-pressure training chambers, centrifuge, pumps, intercommunication equipment, procedural trainers, pressure suits, oxygen equipment, and other physiological training devices. Prepares training devices and aids for indoctrination training. Conducts preflight equipment checks. Installs replacement parts in defective equipment. Prepares recording instruments to follow course of operations and special tests. Modifies standard equipment and apparatus to perform special tests. Constructs special training aids, mockups, and testing devices.

Inspects and evaluates aerospace and operational physiology equipment and procedural activities. Reviews policies and procedures to determine compliance with directives. Interprets findings and recommends corrective action. Coordinates and consults with aerospace and operational physiologist to improve administrative and technical methods. Evaluates mission-specific human performance issues as an operational support flyer.

Performs technical aerospace and operational physiology functions. Resolves technical problems pertaining to aerospace and operational physiology activities. Obtains and compiles data for aerospace and operational physiology activity reports.

What Are the Specialty Qualifications for a 4M0X1?

Knowledge. Knowledge is mandatory of anatomy and physiology, physiological effects of flight, emergency medical care, techniques of operating and maintaining aerospace and operational physiology devices, using and fitting flying equipment, instructional methods, and examination procedures.

Education. For entry into this specialty, completion of high school courses in biology and chemistry are desirable.

Training. The following training is mandatory for award of the AFSC indicated:

  • AFSC 4M031: Completion of the Aerospace and Operational Physiology Apprentice Course. An appropriate course in academic instruction.
  • AFSC 4M071: Completion of the Aerospace and Operational Physiology Craftsman Course. Completion of the Enlisted Human Performance Enhancement Course.

Experience. The following experience is mandatory for award of the AFSC indicated:

  • 4M051. Qualification in and possession of AFSC 4M031. Experience in functions such as operating and maintaining physiological training devices, fitting, maintaining, and inspecting oxygen and personal flying equipment. Instructing in aerospace and operational physiology subject matter.
  • 4M071. Qualification in and possession of AFSC 4M051. Experience in supervising functions such as operating and maintaining aerospace and operational physiology devices, instructing in aerospace and operational physiology subject matter. Supervisory experience over an element or function is highly recommended. Ability to perform Aerospace and Operational Physiology duties as a team/stand-alone is expected.
  • 4M091. Qualification in and possession of AFSC 4M071. Experience in managing functions such as operating and maintaining aerospace and operational physiology devices. Instructing in aerospace and operational physiology subject matter.

For more information on AFSCs and Shredouts check this article out!


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What Are the Possible Assignments for 4M031?

  • Beale, California
  • Columbus, Mississippi
  • JB Andrews, Maryland
  • JBSA Lackland, Texas
  • JBSA Randolph, Texas
  • Laughlin, Texas
  • Sheppard, Texas
  • Tyndall, Florida
  • Vance, Oklahoma

Questions and Comments:

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