AD vs BM
Aviation Machinist's Mate (USN) vs Boatswain's Mate (USCG)
The Navy has nuclear weapons. The Coast Guard has jet skis with guns. Both are technically naval forces. The comparison ends there.
Exit interview, AD: "How was it?" your workspace is either a flight deck on a CVN in 40-knot winds or a hangar bay where the temperature is 20 degrees hotter than outside due to reasons nobody can explain. Exit interview, BM: "How was it?" line handling, towing, aids to navigation maintenance, port security boardings, and being the most competent mariner in any room you walk into — that's the job. Post-military outlook: AD — civilian aviation maintenance is absolutely within reach — A&P certification pathway is legitimate — but the Navy will wring every possible flight hour out of you first. BM — merchant Marine licensing is achievable and worth pursuing while you're in. The military is, at its core, a very large organization that convinced a lot of different people they're all doing the same thing.
After the Uniform
The part the recruiter skips: what each job actually translates to once you're a civilian — and what it pays.
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.
“You'll maintain jet engines on Navy and Marine Corps aircraft — F404s in the F/A-18, F135s in the F-35, T56 turboprops in the E-2C. The technical depth of naval aviation powerplant maintenance is significant, and the FAA Powerplant certificate is directly achievable through military engine experience. Major airlines and MRO facilities are in a persistent competition for A&P-certified technicians with military jet engine experience, and they recruit at Navy transition events specifically for this reason. The pay for an A&P powerplant specialist at a major airline MRO is real money. The Navy is paying for the training.”
You will become intimately familiar with the GE F414 and the Pratt & Whitney F100 in ways the engineers who designed them never intended, primarily because you are maintaining them with fewer people and less sleep. Your workspace is either a flight deck on a CVN in 40-knot winds or a hangar bay where the temperature is 20 degrees hotter than outside due to reasons nobody can explain. A jet engine inspection that the manual says takes four hours will take twelve because three of the required tools are on another aircraft, one is missing entirely, and the work order has a typo. You will develop a second sense for the difference between a normal engine noise and an 'oh no' engine noise. Civilian aviation maintenance is absolutely within reach — A&P certification pathway is legitimate — but the Navy will wring every possible flight hour out of you first. The moment you marshal a jet that you fixed and watch it come off the waist cat is the closest thing to pride the aviation world offers.
“BM is the Coast Guard's original rating — seamanship, small boat operations, deck handling, and every skill that makes a mariner. You'll operate in environments the Navy doesn't go: shallow water rescues, river operations, and the 45-foot RBM boats that work close to shore when conditions are at their worst. The Merchant Marine pathway is well-established for experienced BMs, and USCG deck officer licensing is achievable. This is the closest thing the modern military has to what sailors have always been.”
BM is the most physically demanding rating in the Coast Guard and the one with the broadest seamanship depth. You'll do actual small boat operations in actual bad weather because that's when people call the Coast Guard. Line handling, towing, aids to navigation maintenance, port security boardings, and being the most competent mariner in any room you walk into — that's the job. The prestige in the maritime community is genuine: USCG BMs are respected by merchant mariners who would never admit that about any other military branch. The hours are real, the sea time is real, and the wear on your body accumulates. Merchant Marine licensing is achievable and worth pursuing while you're in.
The Real Life
Same dimensions, side by side. AD on the left, BM on the right.
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Small boat operations, search and rescue, law enforcement boardings, aids to navigation maintenance, and deck seamanship. At a small boat station, you respond to distress calls, conduct patrols, and maintain buoys and waterways. On a cutter, you lead deck operations and boarding teams.
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A-school at Training Center Yorktown (VA) is about 12 weeks covering seamanship, navigation, boat handling, and deck operations. The training is hands-on and directly applicable — you learn to drive boats and handle lines in real conditions.
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Very high. Heavy weather boat operations, line handling, anchor detail, and deck operations in extreme maritime conditions. Upper body strength and sea fitness are essential.
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Boatswain's Mate is the Coast Guard's signature enlisted rate — the sailor who drives the boats, leads the deck crew, and runs the small boat stations that define the Coast Guard's daily mission. The recruiter will highlight search and rescue, and it is as exciting and meaningful as it sounds. The honest truth: most days are routine — maintenance, training, and patrol. But when the phone rings at 0200 with a vessel in distress, you launch into heavy seas and do the work that most people only see in movies. The physical demands are real and the conditions can be brutal. The maritime industry values experienced BMs for their seamanship and leadership. Not the highest-paying rate, but perhaps the most fulfilling for those who love the water.
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