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STGE1-E3

Sonar Technician (Surface)

E-1 to E-3 (Junior Enlisted) · Navy

E1–E3E-4E-5E-6E-7E8–E9
HEADS UP

STG A-School runs roughly 26 weeks at NTTC Dam Neck, Virginia Beach — longer than most Navy A-Schools because the acoustic theory, signal processing, and system familiarization load is genuinely technical. You will graduate knowing the vocabulary; the ship's LCPO will teach you what the ocean actually sounds like. Get the PQS binder signed on the LCPO's timeline from day one.

The Honest MOS Read
You checked aboard a DDG-51 Arleigh Burke-class destroyer or a CG-47 Ticonderoga-class cruiser as Seaman Recruit through Sonar Technician Seaman — the lowest three paygrades in the rate — and the ship's sonar division handed you a PQS binder and a cleaning rag. That is accurate and it is not an insult. The AN/SQQ-89(V) integrated Anti-Submarine Warfare suite — hull-mounted sonar, towed array, sonobuoy receivers, signal processors, display system — is a layered, interdependent collection of systems that surface warfare sailors spend entire careers mastering. The STGSN paygrade is where you earn the right to sit at the display. The work is real and it is unglamorous. You perform operator-level maintenance on the AN/SQS-53C hull-mounted sonar under the MRC (Maintenance Requirement Card) assigned by the work center supervisor. You log maintenance actions in the ship's 3-M system — job sequence number, MRC reference, work performed, date, signature — and you do this correctly every time because the 3-M system is how the Type Commander assesses the ship's ASW readiness posture, and a sloppy entry is a gift to the ISIC maintenance assessment team. You pull the towed array pre-operational checks when the STG2 sends you to do them. You clean transducer domes, handle sonobuoy test kits, and stand sonar watch at the AN/UYQ-25 console as the console operator's assistant — watching, logging, and applying what you learned at Dam Neck to real ocean noise. The acoustic contact classification piece is what the rate is actually about, and it takes longer than A-School to build. The ocean has biologics — shrimp, fish schools, whale clicks — machinery noise from merchant vessels, flow noise from your own hull at speed, and occasionally, on an actual ASW exercise or real-world event, a submarine. The training tapes at Dam Neck gave you a vocabulary for classifying acoustic contacts. The sonar supervisor on your ship will test whether you can apply it cold, under a watchteam that is running at operational speed, with contacts that do not announce themselves the way the training tape contacts did. Silence during a live contact evolution is not neutral — it marks you as a liability. The physical dimension is real and underrated. DDG sonar divisions do PT on the fantail during the workup. The ship deploys and you are at sea for seven months. The towed array handling space is a physically demanding workspace — tension tools, line handling, streaming evolutions. The OPNAVINST 6110.1 PRT standard is the floor, not the ceiling. PQS and the ship's sonar watch qualification are your two milestones. Both have timelines the LCPO tracks and the STGSN who is not progressing on both by month six is visible to the department head. Get the STG2 or STG1 to walk a PQS line item with you during every quiet underway afternoon. The qualification does not come to you.
Career Arc
  • 01Report aboard the DDG or CG after STG A-School at NTTC Dam Neck — receive PQS binder from the work center supervisor on day one.
  • 02Complete the ship's sonar division watch-qualification PQS — every section, every signature by the right authority, on the LCPO's timeline.
  • 03Earn the ship's sonar watch qualification — stand your first independent console watch in the sonar module or CIC.
  • 04Log clean 3-M maintenance actions on assigned MRCs across the AN/SQQ-89(V) suite — zero return-for-rework from QA over the first underway cycle.
  • 05Establish NWAE study habit for the STG3 advancement cycle — pull the current BIB from MyNavyHR/NETC and build a plan before the window closes.
  • 06Complete the first sea tour deployment and begin the C-school / NEC pathway conversation with the LCPO before orders drop.
  • 07Pin STG3 (E-4) via the Navy Enlisted Advancement System — the first advancement that actually depends on your study plan and your eEVAL ranking.
Common Screwups
  • ×OPSEC breach on sonar system capabilities, ship-movement patterns, or acoustic intelligence activities — one social media post or unguarded conversation ends the career permanently. Adversary collectors specifically target surface ASW platform information.
  • ×Falsifying or blank-checking a 3-M maintenance entry. The 3-M system is the legal record of the ship's maintenance history; a fraudulent entry discovered at an ISIC assessment or INSURV generates a JAGMAN and the work center supervisor's name — and yours — are both in it.
  • ×NJP / DUI / drug pop at the STGSN paygrade — separation under MILPERSMAN ch. 1910, clearance issues, and the sonar community is small enough that the read propagates to every ship in the squadron.
  • ×Going around the STG2 or STG1 on a technical question or a system casualty. The watch-section chain exists because unguided improvisation on the AN/SQQ-89 suite creates cascading faults the next watchteam discovers. The first time you go around the chain, the LCPO knows by end of watch.
  • ×Letting the PQS slip because the ship is busy. The ship is always busy. The STGSN who waits for a slow week to work PQS is the STGSN the LCPO is managing by month nine instead of mentoring.

A Day in the Life

  • 0500-0600Reveille in the berthing. At sea this is the oncoming watch section's preparation window — uniform on, coffee if the mess deck has it, pre-watch brief turnover in 30 minutes. In port, morning PT formation on the pier or flight deck.
  • 0600-0700Command PT or unit PT on the flight deck / pier. DDG sonar divisions run with the department on most underway days — run, calisthenics rotation, or the sonar division's own PT plan if the DivO has latitude. Underway, PT happens on the flight deck or in the ship's gym depending on sea state.
  • 0700-0745Hygiene, breakfast in the mess deck, uniform change into NWU. Underway watchbill check — what watch section are you in, what time does your watch start, what is the plan of the day for the sonar division?
  • 0745-0800Quarters at the sonar division / combat systems department. LPO calls accountability, the LCPO puts out the day's maintenance priorities and training events, and you get your MRC assignments for the morning block.
  • 0800-1130Maintenance block. Work center-assigned MRCs on the AN/SQQ-89(V) suite — hull sonar equipment room checks, towed array electronics servicing, EMSP rack cleaning and connection checks, sonar display console preventive maintenance. Log every action in the 3-M system same day. If underway and the ship is conducting an ASW evolution, this block may shift to watch-standing in the sonar module.
  • 1130-1230Lunch in the mess deck. Eat with the STG3s and other STGSNs — the LPO eats with the other LPOs. Quick look at the plan of the week for any afternoon training or watch changes.
  • 1230-1500Afternoon block — varies by day. PMS continuation, technical training from the STG2 on system component familiarization, PQS walkthrough with the designated qualifier, or sonar watch training on the consoles. Tuesdays may be safety stand-down; Thursdays sometimes divisional training day. Underway during ASW exercises: full watch-standing rotation, no maintenance block.
  • 1500-1600NWAE study period if the LPO approved it on the watchbill. BIB chapter work, NAVPERS 18068 NEC research, or reviewing technical publications for PQS line items. The STG2 who has a few minutes will walk PQS items if you are ready.
  • 1600-1630End-of-day turnover. MRC documentation confirmed closed and logged. Work center status reported to the work center supervisor. Any deferred maintenance write-ups completed before release.
  • 1630-1800Released if not on watch. In port: gym, barracks, personal time. Underway: berthing, study, PQS work. Watch rotation changes this block completely — if you are mid-watch, you are in the sonar module.
  • 1800-2200Personal time in berthing or barracks. Study, PT, decompress. Underway: read the BIB, walk the ship to learn new spaces for PQS, ask a STG2 about a system they know you have not seen yet.
  • 2200Lights out in the berthing. Duty section rotates overnight; if you are the on-call for the maintenance space, the watch petty officer has your rack location.
  • Underway ASW exercise / COMPTUEX rotationThe schedule collapses into watch-rest-watch cycle. 6-on, 12-off rotation in the sonar module or CIC. Pre-watch brief from the sonar supervisor, console watch, post-watch maintenance log updates. Sleep happens in 4-6 hour blocks in the berthing. Chow is whenever the watch rotation allows. The STGSN who performs well during COMPTUEX gets mentioned in the LPO's debrief by name.

Weekly Cadence

The Monday rhythm on a DDG sonar division is driven by the plan of the week the LPO published Friday afternoon. Monday morning has the highest density of new MRC assignments and the LCPO's sync with the work center supervisors that sets the week's maintenance priorities. The STGSN arrives at quarters Monday knowing what MRCs are assigned, what PQS items are next, and what the week's training events look like — if not, the work center supervisor fills those gaps at quarters and the STGSN who did not check the plan of the week over the weekend is the STGSN the supervisor is running, not mentoring. Tuesday through Thursday are the working core of the week. Maintenance blocks in the morning, technical training or PQS qualification afternoons, NWAE study when the LPO approved it. One day per week is typically a divisional training day — the STG2 or STG1 runs a technical training session on a component the apprentice STGs need to know for their next PQS section. During workup cycles, COMPTUEX and ASW exercise events replace the garrison routine entirely — the week's calendar is the exercise schedule and everything else is on hold. Friday is plan-of-the-week-out for the next week plus the LPO's administrative sync. The STGSN who has PQS items ready to sign off, maintenance actions documented clean, and the NWAE study log in a notebook the LPO can flip through on Friday gets a different kind of Friday conversation than the one who does not.

Key Skills — How to Drill Each

  1. 01
    Log a Planned Maintenance System (PMS) maintenance action in the ship's 3-M system correctly — job sequence number, MRC reference, work performed, date, signature — clean enough that the work center supervisor does not send it back for rework.
    Read the MRC before you touch the system, not while you are doing the job. The MRC has the sequence for a reason — skipping a step because it seems redundant is how the AN/SQS-53C BIT check comes back false-green and nobody knows until the Type Commander ASW assessment. Log the action the same day it is performed, not at the end of the underway. The work center supervisor who finds a batch of logged-from-memory entries at end-of-deployment will trace every one back to the person who signed it.
  2. 02
    Stand a sonar watch at the AN/UYQ-25 console under supervision — report contacts and classification calls using correct terminology per the ship's ASW watch procedures without drawing a correction from the watch supervisor.
    The watch supervisor is not looking for you to know everything; he is looking for you to apply the vocabulary correctly and to call what you see. Active return: bearing, range, classification attempt, ambiguity acknowledged. Passive contact: bearing, signal characteristics, classification estimate, confidence level. Biological, own-ship machinery noise, merchant machinery, possible sub — know the differences by ear from the training tapes before you sit at the console underway. When you are not sure, say so explicitly; the watch supervisor would rather hear 'uncertain classification, possible biologic' than confident silence.
  3. 03
    Perform pre-operational and post-operational checks on the AN/SQS-53C per the applicable MRC, including dome water temperature reading, BIT results logging, and system-status reporting to the sonar supervisor.
    These checks are not a formality. The dome water temperature tells you whether thermal gradients near the hull will affect active sonar performance during the upcoming evolution. BIT (Built-In Test) results logged correctly give the work center supervisor a trend line — an intermittent BIT fail that shows up three times in a week is a system fault waiting to be written up; a BIT fail that gets waived because you were in a hurry is a sonar casualty during the next ASW exercise. Report status to the sonar supervisor before the evolution, not during it.
  4. 04
    Identify the major components of the AN/SQQ-89(V) integrated ASW suite by designation and function — AN/SQS-53C hull-mounted sonar, AN/SQR-19 towed array, AN/UYQ-25 sonar display system, AN/UYS-2 Enhanced Modular Signal Processor (EMSP) — by compartment, not just by name.
    Walk the ship with the STG2 during the first week aboard. Find every space: the sonar equipment room, the towed array handling space, the EMSP processing racks, the AN/UYQ-25 consoles in the sonar module or CIC, the sonobuoy receiver suite location. Know which cable runs where and which switchboard controls what. The INSURV inspector will ask you to walk him through the suite by compartment; the STG2 will use it as a qualification line-item check. Knowing the system on a diagram and knowing it on the ship are different things.
  5. 05
    Complete the STG-rate PQS and the ship's sonar division watch qualification on the LCPO's timeline — every line item signed by the right authority.
    Build the PQS binder into your daily routine: one to two line items per workday, asking the designated qualifier immediately after completing the task. Do not stack up unsigned items for a Friday sign-off session — the designated qualifier who was there when you did the task is the correct signer. The STGSN who arrives at the LCPO's quarterly PQS review with a binder that is less than 60% complete is the STGSN who gets a counseling entry; the one who is ahead of pace gets study time approved on the watch bill.
  6. 06
    Meet the Navy Physical Readiness Program standard under OPNAVINST 6110.1 every cycle — and keep pace with the sonar division's underway PT rotation on the fantail.
    The PRT minimum is not the bar the sonar division chief respects. Good Medium is the baseline for being invisible — meaning nobody is watching your PRT card with concern. Run three to five miles on the flight deck or treadmill during the underway, every day the watchbill allows. The STG2 who carries the most weight at the towed array handling space during a streaming evolution on a 12-hour watch is the STG2 the LCPO sends to the next C-school slot; the STGSN who fell out of the fantail PT run in the first week is the STGSN everyone remembers at the next advancement ranking.

Manuals & References — What Chapters Matter

  • OPNAVINST 4790.4 series — Ships' 3-M Systems Procedures Manual
    Every maintenance action you log lives inside this program. Read the QA provisions early — specifically the sections governing documentation standards, corrective action entries, and work center supervisor sign-off authority. The work center supervisor who sends your entry back for rework will quote the OPNAVINST; know it before he does.
  • NAVPERS 18068 Vol II — Manual of Navy Enlisted Manpower and Personnel Classifications (the NEC catalog)
    Read the STG-series NEC entries before your first C-school counseling session. The NEC shapes where you go, what billet you fill, and what sea tours are available to you. The STGSN who walks into the LCPO's office knowing which NEC path he wants and why — and having read the source document — is the STGSN the LCPO advocates for at the next NEC slate. Pull the current source-rating NAVADMIN to verify NEC codes before quoting them.
  • NWP 3-21 series — Navy Anti-Submarine Warfare doctrine
    The tactical framework the sonar watch team operates inside. Read the applicable volume before you stand your first independent watch — understanding why the ASW coordinator is asking for specific data, and what format it needs to be in, makes you a productive member of the watchteam rather than a technician who runs a console in isolation. The watch supervisor is not going to explain the tactical picture from scratch every watch.
  • NWAE Bibliography for Advancement Exam Study (BIB) — current STG3 cycle from MyNavyHR/NETC
    Pull this before the advancement window closes on you — which is faster than STGSNs believe. The BIB is the test and the test is the BIB. Build a study log: 30-45 minutes a day, four days a week, working chapter-by-chapter. The LCPO who sees a documented study log approves study time on the watch bill. The STGSN who shows up to the NWAE cold is the STGSN watching the slate from the maintenance bench.
  • OPNAVINST 6110.1 — Navy Physical Readiness Program
    Your PRT and BCA standard. Know the current scoring tables for your age group. Two PRT cycles per year; BCA at each. Failing either flags you under MILPERSMAN for administrative action. Good Medium on the run and the push/pull events is the invisible floor — below it, the LCPO is managing your record; above it, he is managing your career.

Standards — How to Hit Each

  • STG-rate PQS complete and signed on the LCPO's timeline — every section.
    The timeline is set at check-in and reviewed quarterly. The STGSN who arrives at the Q1 review ahead of pace gets approved study time and favorable watchbill placement. The one who arrives behind pace gets a counseling worksheet and daily check-ins from the work center supervisor. Work two to three PQS line items per day; get signatures the day you complete the task.
  • Ship's sonar watch qualification earned within the command's expected window.
    The command's expected qualification window is published at check-in by the LCPO — typically six months for a STGSN who is applying themselves. The STGSN who is not qual'd by month six is the STGSN visible to the department head as a readiness gap. Ask the STG2 for a supervised console watch at every opportunity: underway transits, pier-side system checks, ASW exercises. Passive seat time on the console is PQS qualification hours; sitting in the spaces watching somebody else work is not.
  • Zero classified system or OPSEC violations — ever.
    This standard is binary. Sonar system capabilities, acoustic intelligence activities, towed array configurations, and ship-movement patterns are adversary intelligence collection targets. The classification handling requirements you learned at Dam Neck are enforced from day one on the ship. If you are uncertain whether something is classifiable, the answer is treat it as classified and ask the work center supervisor before you share it anywhere. One post, one slip, one overheard conversation that you should not have had is a federal investigation.
  • PRT Good Low or higher; BCA in standard — every cycle.
    Schedule PRT prep into the week as a non-negotiable block, same as a watch or a maintenance evolution. The ship does not care that you are tired from the last underway; the PRT cycle runs on the published schedule. Failing PRT or BCA as a first-term STGSN goes on the record under OPNAVINST 6110.1 administrative action provisions and the LPO has to manage your record instead of your career.
  • NWAE study habit established before the STG3 advancement cycle opens.
    The advancement window arrives 12-18 months after A-School for most STGSNs — faster than they expect. Pull the current BIB from MyNavyHR/NETC at the 9-month mark and build a documented study plan. One 30-45 minute session four days a week, chapter by chapter, with written notes you review the week before the exam. The LPO who sees the study plan on paper at section sync is the LPO who approves study time and mentions your name favorably at the quarterly advancement review.

Technical Mistakes — Concrete Consequences

  • Logging a maintenance action from memory instead of from the MRC.
    An incorrect job sequence number or a skipped corrective-action step is a 3-M audit finding. The work center supervisor's name goes into the Type Commander ASW assessment finding, and he will trace it to the last person who signed the entry. At the STGSN paygrade, that is usually you — and the audit finding follows your eEVAL.
  • Treating sonar watch as passive observation — sitting at the AN/UYQ-25 console without calling contacts or updating the track picture.
    The watch supervisor identifies a passive watchstander inside the first 15 minutes of an ASW exercise. Being pulled from the console during a live evolution — or told in front of the watchteam that you were not applying the classification procedures — is a professional mark that takes months to undo.
  • Posting photos from the sonar shack, CIC, or near the towed array handling space and gear.
    Sonar system configurations, display presentations, and ship-movement patterns are adversary intelligence collection targets. Federal investigation, separation, possible criminal referral. The case takes years to resolve and careers do not survive it.
  • Going around the STG2 or STG1 with a technical question or a system discrepancy report.
    The sonar system's signal chain is interdependent — unguided improvisation on the AN/SQS-53C or the EMSP creates cascading effects the next watchteam discovers when the system behaves unexpectedly during a real evolution. The LCPO hears about the chain-bypassing the same watch day. The next quarterly eEVAL input reflects it.
  • Letting PQS slip because the underway schedule is compressed.
    The LCPO tracks PQS progress quarterly. The STGSN behind pace at month six is on a daily check-in with the work center supervisor — which means the work center supervisor is now a de facto babysitter instead of a mentor. That relationship change is visible to the STG2s and the STGSN who caused it carries the reputation for the rest of the sea tour.

Career Decisions at This Rank

  • Which NEC pipeline to pursue after the first sea tour — active sonar operator track, towed array specialist, LAMPS helicopter interface operator, or surface ship undersea warfare advanced track
    The NEC track is the STGSN's first real career decision and the LCPO will start the conversation before the first sea tour ends. The active sonar operator track (AN/SQS-53C focused NEC) keeps you on the surface warfare ASW picture. The towed array track puts you on the passive side — longer-range detection, slower tempo, different operational emphasis. The LAMPS interface track puts you at the crossroads of shipboard ASW and helicopter-delivered weapons — coordinating the MH-60R crew's sonobuoy patterns and weapon releases with the ship's tactical picture. Pull NAVPERS 18068 Vol II and read the actual NEC source-rating NAVADMIN for the current cycle before you tell the LCPO which path you want. The sailor who has read the documents makes a credible case; the one who is going off mess-deck intel from two deployments ago may be chasing a billet that has been restructured.
  • First-term re-enlistment or ETS — the conversation that starts around 18-24 months in
    The STG rate's career value is built on sea tours, NEC stacking, and advanced system qualifications. The STGSN who ETSes at end of first enlistment without a NEC has used the time to build the NWAE advancement score and the A-School credential — portable to defense contractor and federal civilian ASW technician roles at the GS-05 to GS-07 level, but not the senior-tech billet the Navy needs. The STGSN who re-enlists with a NEC pipeline locked in and a clear second sea tour lined up is building toward the LPO and LCPO billets where the post-Navy market pays significantly better. The SRB for STG and STG sub-NECs is published in the current NAVADMIN — pull the current message before signing anything. Run the math, talk to the LCPO, and do not make the decision based on what the recruiter who pulled you in said about bonuses.
  • TSP enrollment — opt into 5% or coast on the 1% auto-default under BRS
    Under the Blended Retirement System (BRS), you get 1% automatic government TSP contribution after 60 days; the 4% government match on top of your 5% contribution does not activate until two years of service. The STGSN who sets the 5% election at month two and never changes it is the STG1 with a funded TSP balance ten years from now. The one who coasts on 1% is leaving a guaranteed 4% government match on the table every month. Go to the Fleet and Family Service Center financial counselor in the first 30 days — it is free and the math is not complicated.

How the Seat Varies by Unit Type

  • DDG-51 Arleigh Burke-class Flight IIA / Flight III destroyer
    The primary STG billet. DDG-51 ships carry the full AN/SQQ-89(V) suite and the LAMPS MH-60R detachment. ASW is a primary mission area, and the sonar division is a full work center with STGSNs through STGCs. Flight III DDGs carry the upgraded AN/SQS-62 bow sonar as the active system — confirm the configuration of your specific hull with the LCPO because the technical manuals and PMS MRCs differ from Flight IIA. COMPTUEX and deployment cycles drive the calendar. The sonar division on a deploying DDG lives a high-OPTEMPO tour.
  • CG-47 Ticonderoga-class cruiser
    Ticonderoga cruisers carry the AN/SQQ-89(V) suite and serve as ASW command ships in carrier strike groups. The sonar division is larger than a DDG's division. STGSN billets exist but the ship's role as the strike group's senior ASW platform means the standards are higher and the watchteam expectations are tighter. The transition timeline from STGSN to independent watchstander is slightly accelerated on a cruiser with a mature ASW department.
  • Reserve component / shore training command (NTTC Dam Neck, Surface Combat Systems Center)
    Some STGSNs go to shore billets at training commands after A-School — instructor support, system maintenance for training suites, SCSC detachment work. Shore billets at this paygrade are less common than fleet assignments and the OPTEMPO is lower. The trade-off: reduced sea pay and a thinner operational qualification resume going into the first NWAE cycle.
  • DESRON staff (destroyer squadron)
    Not a typical STGSN billet — DESRON staff billets open at STG1 and STGC. The STGSN who knows what a DESRON staff does and what billets are available at senior tier is the STGSN who has a career plan. Read the Fleet ASW organization before talking to the LCPO about long-term assignment goals.

What Good Looks Like at This Rank

The good STGSN is the apprentice the STG2 sends to run the towed array post-operational checks alone by month four, because the documentation comes back accurate, the system-status log is signed correctly, and the STG2 does not have to walk it back. His 3-M entries close at QA without return-for-rework. His sonar watch station performance is improving measurably — by month six he is calling biologics and machinery contacts correctly, and the watch supervisor is noting his classifications in the daily ASW log. He does not wait to be told when to work the PQS binder. He corners the STG1 during a quiet afternoon transit and asks which line items they can sign off. He has the BIB for the STG3 advancement cycle open on his laptop in the berthing by month nine — not because the LPO told him to, but because he looked at the advancement cycle dates and did the math himself. The sonar division chief knows his name and his next step before the end of the first deployment. Not because the STGSN announced himself — but because the STG2 mentioned him at the work center supervisor sync, and the LCPO is already building the case for which C-school pipeline the ship needs filled before the next deployment. The STGSN who earns that conversation does it by being the technician the senior sailors send to do the job that needs to be right.

Preview — The Next Rank

STG3 (E-4) is where the sonar division stops treating you as an apprentice and starts treating you as a petty officer — which means they expect you to own your section of the maintenance bill, train the STGSN below you, and stand an independent sonar watch without supervision pulling your elbow. The promotion math runs through the Navy-Wide Advancement Examination under the Navy Enlisted Advancement System — Final Multiple Score combines exam, eEVALs, time-in-rate, awards, and education. The STG3 NWAE is your first competitive exam; the sailors who built a documented BIB study plan 12 months before the cycle window walk in with a real score. The ones who show up cold watch the slate from the maintenance bench. The job content shift at STG3 is real. You will own a section of the sonar division's PMS schedule and you will be the work center supervisor's first review before QA sees the documentation. You will train the STGSN who checks aboard after you. You will start the C-school and NEC conversation in earnest — the LCPO wants to know which pipeline you want before the ship enters the next deployment workup, because NEC billet programming happens on a longer cycle than individual sailor preferences. Pull NAVPERS 18068 Vol II and the current NEC source-rating NAVADMIN before you tell the LCPO which track you want. The Surface Warfare (SW) device process starts at STG3 — the qualification PQS that earns the SW device identifies you as a sailor who understands the ship's warfare areas beyond your own rate. It is not required but it is noticed at every eEVAL ranking board the LCPO sits on.
FAQ

STG E1-E3 — Frequently Asked Questions

Q01What does a E1-E3 STG (Sonar Technician (Surface)) actually do?
Fresh out of STG A-School at NTTC Dam Neck, Virginia, you check aboard a DDG-51 Arleigh Burke-class destroyer or a CG-47 Ticonderoga-class cruiser and the ship's sonar division hands you a PQS binder and a cleaning rag.
Q02What's the most important thing to know as a E1-E3 STG?
STG A-School runs roughly 26 weeks at NTTC Dam Neck, Virginia Beach — longer than most Navy A-Schools because the acoustic theory, signal processing, and system familiarization load is genuinely technical.
Q03What does a typical day look like for a E1-E3 STG?
Time-blocked day at the E1-E3 STG rank tier: 0500-0600 Reveille in the berthing. At sea this is the oncoming watch section's preparation window — uniform on, coffee if the mess deck has it, pre-watch brief turnover in 30 minutes. In port, morning PT formation on the pier or flight deck, 0600-0700 Command PT or unit PT on the flight deck / pier. DDG sonar divisions run with the department on most underway days — run, calisthenics rotation, or the sonar division's own PT plan if the DivO has latitude. Underway, PT happens on the flight deck or in the ship's gym depending on sea state,…
Q04What mistakes get E1-E3 STG soldiers fired or relieved?
OPSEC breach on sonar system capabilities, ship-movement patterns, or acoustic intelligence activities — one social media post or unguarded conversation ends the career permanently. Adversary collectors specifically target surface ASW platform information; Falsifying or blank-checking a 3-M maintenance entry. The 3-M system is the legal record of the ship's maintenance history;…
Q05What career decisions matter most at the E1-E3 STG rank tier?
Which NEC pipeline to pursue after the first sea tour — active sonar operator track, towed array specialist, LAMPS helicopter interface operator, or surface ship undersea warfare advanced track — The NEC track is the STGSN's first real career decision and the LCPO will start the conversation before the first sea tour ends. The active sonar operator track (AN/SQS-53C focused NEC) keeps you on the surface warfare ASW picture. The towed array track puts you on the passive side — longer-range detection, slower tempo, different operational emphasis.…
Q06What's next after E1-E3 for a STG (Sonar Technician (Surface)) in the Navy?
STG3 (E-4) is where the sonar division stops treating you as an apprentice and starts treating you as a petty officer — which means they expect you to own your section of the maintenance bill, train the STGSN below you, and stand an independent sonar watch without supervision pulling your elbow.
Q07What manuals and regulations does a E1-E3 STG need to know cold?
OPNAVINST 4790.4 series — Ships' 3-M Systems Procedures Manual; every maintenance action you log runs inside this program from day one.; OPNAVINST 6110.1 — Navy Physical Readiness Program; your PRT and BCA standard from check-in.; NAVPERS 18068 Vol II — Manual of Navy Enlisted Manpower and Personnel Classifications; read the STG-rate NEC entries so the C-school conversation is not a surprise.

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Published by the Honest MOS Editorial DeskVerified against DoD/.gov sourcesUpdated May 2026Editorial standards