Skip to main content
HonestMOS
InvestigationsCongress made VA disability claims free to file. An entire industry charges veterans anyway — and nobody can stop them.
MOS COMPARISON

9S100 vs 1A1

Scientific Applications Specialist (USAF) vs Flight Engineer (USAF)

Intel

Both recruiters said "the Air Force takes care of its people." That part's true. The job descriptions were the creative writing portion.

Time machine scenario: you're 18, the career counselor says "provide technical expert support to Air Force R&D programs" or "serve as the aircraft commander's right hand, managing complex aircraft systems on heavy airframes like the C-5 Galaxy and MC-130." Here's what the time traveler from your future would say about 9S100: air Force Research Laboratory work at Wright-Patterson, Edwards, Kirtland, or Rome puts you at the center of genuinely interesting technical challenges with national security implications. And about 1A1: your career field is slowly being automated out of existence — the newer aircraft don't have a flight engineer station, which means the Air Force has decided computers can do your job. The time traveler looks tired. Both options produce that look. One of these sees daylight regularly. The other one has opinions about fluorescent lighting that border on philosophical.

9S100Air Force
Scientific Applications Specialist
Overall ratingNo reviews yet
Do It Again
Civilian Pay
$108K
1A1Air Force
Flight Engineer
Overall ratingNo reviews yet
Do It Again
Civilian Pay
$135K
Head to Head
9S100
1A1
Getting In
ASVAB Line Scores
E 60G 66
M 47
Clearance
Secret
Pay Grade
Enlisted
Enlisted
Enlistment Bonus
Up to $50,000
Training
Training Length
16 wk
10 wk
Pipeline Type
BMT
Training Location
Goodfellow AFB, TX
Day-to-Day
Promotion Speed
Slow
Deployment Tempo
High
Career Field
Research and Development
Operations
After You Get Out
Civilian Median Pay
$108K
$135K
Top Civilian Career
Data Scientists
Commercial Pilots
Credentials Earned
4 certs

After the Uniform

The part the recruiter skips: what each job actually translates to once you're a civilian — and what it pays.

9S100Scientific Applications Specialist
Civilian Median Pay
$108K/yr
What It Becomes on the Outside
Data ScientistsStrong
Job market: Much faster than average (35%)
$108K
Mechanical EngineersRelated
Job market: Average (10%)
$100K
Electrical EngineersRelated
Job market: Average (9%)
$108K
1A1Flight Engineer
Civilian Median Pay
$135K/yr
What It Becomes on the Outside
Commercial PilotsStrong
Job market: Much faster than average (11%)
$135K
Aircraft Mechanics and Service TechniciansRelated
Job market: Faster than average (6%)
$75K
Airline Pilots, Copilots, and Flight EngineersRelated
Job market: Much faster than average (11%)
$239K
Credentials You Walk Away With
Aircrew qualificationFlight Engineer certificationAircraft-specific qualifications (C-130, MC-130, HC-130)SERE

Salary data from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics program. A guide, not a guarantee.

Recruiter vs. Reality

The pitch versus what people who actually did the job report back.

9S100Scientific Applications Specialist
What the Recruiter Says

You'll provide technical expert support to Air Force R&D programs — working in research laboratories and acquisition offices on the systems that define the Air Force's future capabilities. Senior technical positions in Air Force research and development are selective, prestigious, and create direct pathways to defense contractor and government laboratory careers. The technical expertise and clearances are significant market assets.

What It's Actually Like

Scientific R&D support at the senior technical level means you're the experienced technical authority in programs ranging from fundamental research to advanced development. Air Force Research Laboratory work at Wright-Patterson, Edwards, Kirtland, or Rome puts you at the center of genuinely interesting technical challenges with national security implications. The clearance and the specific technical expertise create a post-military profile that defense contractors and national laboratories find specifically useful. The research environment is more academic than operational and the culture reflects the specific blend of military structure and scientific inquiry.

1A1Flight Engineer
What the Recruiter Says

As a Flight Engineer, you'll serve as the aircraft commander's right hand, managing complex aircraft systems on heavy airframes like the C-5 Galaxy and MC-130. You'll master systems engineering, aerodynamics, and emergency procedures, building a skillset that translates directly to civilian aviation careers with major airlines.

What It's Actually Like

You're a flight engineer, which means you're the person who actually knows how the plane works while the pilots focus on flying it. You sit between or behind them monitoring every system — hydraulic pressure, fuel quantity, engine temps, electrical loads — and you know every emergency procedure for an aircraft that has more ways to break than most people have excuses for being late. When something goes wrong at 30,000 feet, the pilots turn around and look at YOU. Not the checklist. You. Because you ARE the checklist. The C-5 Galaxy has more systems than a small city and you know all of them. The MC-130 flies at treetop level at night, and your job is to make sure the aircraft cooperates with this terrible idea. Your career field is slowly being automated out of existence — the newer aircraft don't have a flight engineer station, which means the Air Force has decided computers can do your job. The computers are wrong, and the pilots who've flown with a good FE know it. Your FAA flight engineer certificate and A&P pathway are real, and civilian cargo airlines and charter operations will hire you because you understand aircraft systems at a level that no simulator can teach.

The Real Life

Same dimensions, side by side. 9S100 on the left, 1A1 on the right.

Daily Life
9S100

1A1

Pre-flight inspections, in-flight systems monitoring, performance calculations, and emergency management on multi-engine aircraft. Flight engineers are the aircraft's systems expert — you know every switch, gauge, and procedure. When something breaks at 30,000 feet, you are the one who fixes it or decides if the mission continues.

Training / School
9S100

1A1

Tech school at Altus AFB (OK) or Little Rock AFB (AR) is about 5-6 months depending on airframe. Covers aircraft systems, performance engineering, and emergency procedures. Heavy academic load — you must understand hydraulics, electrical, fuel, pressurization, and engines at a deep level.

Physical Demands
9S100

1A1

Moderate. Long flights in noisy, unpressurized aircraft (C-130 variants). Must be able to perform in-flight emergency procedures including manual systems operation. Flight physicals required.

Where You'll Be Stationed
9S100
1A1
Dyess AFB (TX)Little Rock AFB (AR)Kirtland AFB (NM)Hurlburt Field (FL)Yokota AB (Japan)
The Honest Truth
9S100

1A1

Flight engineer is a legacy aircrew position being phased out as the Air Force transitions to newer aircraft with two-pilot cockpits. The recruiter may not emphasize this, but the career field is shrinking. That said, if you get it, the experience is unparalleled — you are the aircraft systems expert, and on older platforms like the C-130H and MC-130, the flight engineer is indispensable. AFSOC flight engineers have some of the most intense and rewarding flying in the Air Force: low-level night missions, special operations insertions, and austere airfield landings. The camaraderie in the aircrew community is tight. Just go in with eyes open about the career field's trajectory and have a plan for retraining or transition.

Recent Reviews

9S100
No reviews yet. Be the first to review 9S100.
1A1
No reviews yet. Be the first to review 1A1.

Community Takes

Be the first to share your take on 9S100 vs 1A1

Compare Other MOS

Search by code or title, or browse by branch

vs