Below are marine Abbreviations of ship types you may encounter;
- S/M – SubMarine SB – Small Boat
- SC – Submarine Chaser
- SD – Submarine Dutch
- SES – Surface Effect Ship
- SFS – Surface-Effect Fast Sealift Ship
- SGB – Steam GunBoat
- SOB – Single Outboard Boat
- SOTL – Ship Of The Line
- SP – Shore Patrol vessel
- SS – Fleet Submarine
- SSB – Ballistic Missile Submarine, Conventional Powered
- SSBN – Ballistic Missile Nuclear Submarine
- SSG – Guided Missile Submarine Conventional Powered
- SSGN – Guided Missile Submarine, Nuclear Powered
- YGB – Yard Icebreaker (Yardcraft, General, ice Breaker)
- YGN – Yard Craft, Garbage Lighter
- YN – Yardcraft Netlayer
- YNG – Yardcraft Net Gate
- YNS – Yllennocian Naval Ship
- YO – Yard Oiler
- YP – Yard Patrol boat
- YR – Yard Repair
- YSP – Yard Salvage Pontoon
- YT – Yard Tug
- YTB – Yard Tug Big
- YTL – Yard Tug Small
- YTM – Yard Tug, Medium
- YTT – Yardcraft Torpedo Testing barge
- YW – Yardcraft Water barge
- LST – Landing Ship Tank
- LST – Large Slow Target
- LSU – Landing Ship Utility
- LSV – Landing Ship Vehicle
- LV – Landing Vehicle
- LVA – Landing Vehicle Assault
- LVT – Landing Vehicle Tracked
- LVW – Landing Vehicle, Wheeled
- LWT – Warping Tug (Landing, Warping, Tug)
- M/S – Motor Ship
- MCM – Mine Counter-Measures ship (Minesweeper)
- MCMV – Mine Counter-Measures Vessel
- MCS – Mine Countermeasures Ship
- MFV – Motor Fishing Vessel
- MHA – MineHunter Auxiliary
- MM – Minelayer (Minecraft, Minelayer)
- MMC – Coastal Minelayer (Minecraft, Minelayer, Coastal)
- MMD – Destroyer Minelayer (Minecraft, Minelayer, Destroyer)
- MMF – Fleet Minelayer (Minecraft, Minelayer, Fleet)
- MOW – Man-O-War MS MineSweeper
- MSA – MineSweeper Auxiliary
- MSB – MineSweeping Boat
- MSC – MineSweeper Coastal
- MSCO – MineSweeper Coastal Old
- MSD – MineSweeping Drone
- MSF – Fleet Minesweeper (MineSweeper, Fleet)
- MSI – MineSweeper, In-shore
- MSL – MineSweeping Launch
- MSM – MineSweeper
- MSSB – Mine-Sweeping Shrimp Boat
- MTB – Motor Torpedo Boat
- N/S – Nuclear Ship
- NMS – New Medical Ship
- NSSN – New Nuclear-powered Attack Submarine
- OBB – Old Battleship
- OC – Outrigger Canoe
- OM – Open Motorboat
- OSV – Offshore Supply Vessel
- PACV – Patrol Air Cushion Vehicle
- PB – Patrol Boat
- PBR – River Patrol Boat
- PC – Patrol Craft
- PCE – Patrol Craft Escort
- PCER – Patrol Craft Escort Rescue
- PCF – Patrol Craft Fast
- PCG – Patrol Craft Guided Missile
- PCH – Patrol Craft Hydrofoil
- PCM – Patrol Craft Missile
- PCS – Patrol Craft anti-Submarine
- PF – Patrol Frigate
- PG – Patrol Gunboat
- PGG – Guided-missile Gunboat
- PGH – Patrol Gunboat Hydrofoil
- PHM – Patrol Hydrofoil Missile
- PR – River Gunboat
- PSV – Platform Supply Vessel
- PT – Torpedo Boat
- PTF – Fast Torpedo Boat
- PTGB – Torpedo GunBoat
- RHIB – Rigid Hull Inflatable Boat
- RIBL – Rigid Inflatable Boat Light
- RIBM – Rigid Inflatable Boat Medium
- RIBS – Rigid-hulled Inflatable Boat Small
- RMS – Royal Mail Steamship
- RPL – Ramped Powered Lighter
- SSK – Hunter- Killer Submarine
- SSN – Submarine Submarine Nuclear
- SSP – Submarine Submarine Personnel
- SSS – Strategic Sealift Ship
- SST – Training Submarine
- SSV – Aircraft Carrying Submarine (Submarine Submarine, heaVier than air aircraft)
- SSX – Next Generation Submarine
- SV – Sailing Vessel
- SWATH – Small Waterplane Area Twin Hull
- TB – Torpedo Boat
- TCD – Transport de Chaland de Debarquement
- TS – Training Ship
- TVB – Torpedo Volg Boot (Torpedo following boat)
- ULCC – Ultra Large Crude Carrier
- USAT – United States Army Transport
- USCGD – United States Coast Guard Destroyer
- USLT – United States Lighthouse Tender
- USNT – United States Naval Transport
- USS – United States Ship
- VLCC – Very Large Crude Carrier
- VPB – Vietnamese Patrol Boat
- WAGC – Coast Guard Amphibious Command Ship
- WDE – United States Coast Guard Destroyer Escort
- WIX – Coast Guard Unclassified
- WLB – Seagoing Buoy Tender WLB-401 Sassafras class Coast Guard Cutter Buoy Tender
- WLBB – Lake IceBreaker Coast Guard (Coast Guard, Large Buoy Breaker)
- WLBR – Seagoing Buoy Tender Replacement Vessel
- WLI – Inland Buoy Tender
- WLIC – Inland Construction Buoy Tender
- WLM – Coastal Buoy Tender
- WLMR – Coastal Buoy Tender Replacement Vessel
- WLR – River Buoy Tender
- WPG – Coast Guard Patrol Gunboat
- WSES – Coast Guard Surface Effect Ship
- YB – Boom vessel
- YC – Open Car Lighter (Yardcraft, Car lighter)
- YCF – Car Float (Yardcraft, Car Float)
- YCU – Yard Craft Utility
- YD – Floating Crane (Yardcraft, Derrick)
- YDG – Garbage Scow (Yardcraft, Disposal, Garbage)
- YDT – Diving Tender (Yardcraft, Diving Tender)
- YF – Yardcraft, Ferryboat (Self-Propelled)
- YFD – Yardcraft Floating Drydock
- YFN – Yardcraft Covered Lighter (Non-Self Propelled)
- YFNX – Yardcraft, Lighter (Special-Purpose)
- YFR – Yardcraft Refrigerated Covered Lighter ( Self-Propelled)
- YFRN Yardcraft Refrigerated Covered Lighter ( Non-Self-Propelled)
- YG Yardcraft Garbage Lighter (Self-Propelled)
- AGTR – Technical Re Ship
- AH – Hospital Ship
- AHTS – Anchor Handling Tug Supply vessel
- AKA – Attack Cargo Ship
- AKD – Dock Cargo Ship
- AKL – Light Cargo Ship
- AKR – Roll-on/Roll-off Cargo Ship
- AKV – Aircraft Ferry
- AM – Minelayer
- AMC – Coastal Minesweeper
- AMC – Armed Merchant Cruiser
- AMS – Minesweeper
- ANL – Netlayer ship
- APB – Barracks ship
- APC – Coastal Transport
- APD – Auxiliary Personnel Destroyer
- APH – Hospital Transport
- APS – Afloat Pre-positioning Ship
- AR – Repair ship
- CVN – Nuclear-powered Aircraft Carrier ( vessel nuclear carrier)
- CVS – Anti-Submarine Aircraft Carrier (Cruiser, heaVier-than-air, anti-Submarine)
- CVX – Next Generation Aircraft Carrier
- CZ – Lighter-than-air Aircraft Carrier
- DD Destroyer
- DDE – Escort Destroyer
- DDG – Guided-Missile Destroyer
- DDH – Helicopter-carrying Destroyer (Destroyer Helicopter carrier)
- DDK – Hunter-Killer Destroyer
- DDR – Radar Picket Destroyer
- DDX – Destroyer next generation
- DE – Destroyer Escort
- DEG – Destroyer Escort Guided-missile
- DER – Destroyer Escort Radar Picket
- DFL – Destroyer Flotilla Leader
- DL – Destroyer Leader
- DLG – Destroyer Leader Guided missile
- DM – Destroyer Minelayer
- DMS – Destroyer Minesweeper
- AGF – Amphibious Force Command Ship
- AGI – Intellligence Collector ship
- AGM – Missile Range Instrumentation ship
- AGOS – Ocean Surveillance ship
- AGP – Motor Torpedo Boat Tender
- AGR – Radar Picket Ship
- AGRM – Major Communications Relay Ship
- AGS Survey Ship
- ERRV – Emergency Rescue and Recovery Vessel
- FCB – Ferro-Concrete Barge
- FDS – Field Development Ship
- FF – Frigate
- FFG – Guided-Missile Frigate
- FFH – Fast Frigate Helicopter
- FRB – Fast Rescue Boat
- FSS – Fast Sealift Ship
- GGG – Galleon GAL Galleon
- GOD – Gallery Of Death
- HIN – Hull Identification Number
- HQS – HeadQuarters Ship
- IBS – Inflatable Boat Small
- IBS – Itty Bitty Ship
- AALC – Amphibious Assault Landing Craft
- AB – Crane Ship
- ABSD – Advanced Base Sectional Dock AC Collier
- ACR – Armored Cruiser
- ACS – Auxiliary Crane Ship
- AD – Destroyer Tender
- ADG – De-gaussing ship
- ADS – Air Defence Ship
- AE – Ammunition ship
- AF – Stores Ship
- AFDB – Floating Drydock Large
- AFDL – Floating Drydock Small
- AFDM – Floating Drydock Medium
- AFS – Combat Stores Ship
- AG – General Auxiliary
- AGB – Icebreaker
- AGC – Command Ship
- AGDE – Destroyer Escort Research ship
- AGEH – Hydrofoil Research Ship
- AGER – Environmental Research Ship
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