This list includes detailed listings for all miscellaneous auxiliaries over 500 tons displacement and brief listings for smaller auxiliary/yard/service craft.
Ships not yet commissioned, or in long-term overhaul/conversion, are listed in italics. Navigation and surface-search radars are not listed. All classifications are purely unofficial and are based on an attempt to use standard classifications throughout all navies; they may or may not correspond to "official" designations. Where two dates are given (i.e. 1965/82), the first is the date of initial completion, and the second is the date of acquisition, conversion, or transfer. Designations given in (parentheses) are assigned but not displayed on the ship's hull.
Ships operated by MSC carry the prefix "USNS" with their names; chartered ships are "M/V" or "R/V".
Ranger
class trials support ships (2 ships)
Notes: Two former oilfield support tugs chartered to support various trials. NAWC 38 conducts trials of littoral warfare equipment and technology; Ranger supports trials on the AUTEC range, including torpedo recovery duties.
Builders: McDermott SY, New Iberia, LA.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| 192UB8701 | Ranger | 1981/86 | ATL | Andros Range | NUWC | |
| 192UB8702 | NAWC 38 | 1981/86 | ATL | Key West | NAWCAD |
Notes: A former USAF rocket recovery ship transfered to USN in 1988 and employed in support of underwater sensor tests.
Builders: Halter Marine, Moss Point, MS.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| -- | Independence | 1985/88 | PAC | Port Hueneme |
180 foot
type trials support ships (3 ships)
Notes: Former oilfield support tugs acquired on for various trials & research support functions. Hugo and Hunter operate as torpedo trials vessels; Acoustic Pioneer is assigned to the Naval Air Warfare Center.
Builders: McDermott SY, New Iberia, LA; Quality SB, Moss Point, MS; Halter Marine, Moss Point, MS.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| 180NS8201 | Hugo | 1982/91 | ATL | Roosevelt Roads | ||
| 180NS8202 | Hunter | 1981/91 | ATL | Roosevelt Roads | ||
| 180WB8701 | Acoustic Pioneer | 1981/87 | ATL | Key West | NAWCAD |
Concept/Program: Last of a class of small AGORs, now operated as a general research/survey and trials support ship under the control of Norfolk Naval Shipyard and available for charter or contract operation. She is the largest operational vessel under the control of a naval base.
Formerly R/V Thomas G. Thompson (AGOR 9); taken out of service in 1989, redesignated IX 517 and named Pacific Escort as a trials escort/utility vessel at Mare Island Naval Shipyard. Following closure of that base in 1995 she was acquired by Norfolk Naval Shipyard, renamed Gosport, and refurbished for continued service.
Builders: Marinette Marine, WI.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| IX 517 | Gosport | 1965/95 | ATL | Norfolk | NNSY |
Notes: A large purpose-built torpedo trials vessels. Sisters YTT 9 and YTT 12 have been discared; the latter vessel was never placed in service.
Builders: McDermott SY, Morgan City, LA.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| YTT 10 | Battle Point | 1991 | PAC | Keyport, WA | NUWC | |
| YTT 11 | Discovery Bay | 1992 | PAC | Keyport, WA | NUWC |
Notes: Small ship built to launch Vandal target drones (converted Talos missiles).
Builders: Halter Marine, Moss Point, MS.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| ATLS 9701 | (none) | 1998 | PAC | Port Hueneme | NAWC |
Notes: Purpose-built remote-controlled target ship, used for live-fire exercises.
Builders: Maritime Contractors, Bellingham, WA.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| MST 9301 | (none) | 1994 | PAC | Port Hueneme | NAWC |
Sea Shadow
advanced technology test vessel
Notes: Advanced-technology, SWATH-hulled vessel, originally built to test low-observable ("stealth") technologies. Now employed in technology testing and demonstration for the DD-21 and other advanced programs. Designation IX 529 assigned 2000.
Builders: Lockheed SB, Redwood City, CA.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| IX 529 | Sea Shadow | 1983 | PAC | San Diego |
Constitution
sail frigate
Notes: Historic frigate preserved at Boston; oldest commissioned ship in the Navy and oldest commissioned warship afloat in the world. Restored 1992-1996 and sailed under her own power 21 July 1997.
Builders: Hart's SY, Boston.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| -- | Constitution | 1798 | ATL | Boston |
Barry
(Forrest Sherman class) destroyer
Notes: One of the last traditional-design, all-gun destroyers, stricken in 1983 but preserved at Washington Navy Yard as a museum and ceremonial ship. Officially listed as "floating equipment".
Builders: Bath Iron Works, Maine.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| ex-DD 933 | Barry | 1956/83 | ATL | Washington |
Cassin Young
(Fletcher class) destroyer
Notes: One of the few surviving Fletcher class destroyers, now preserved at Boston, near USS Constitution. Owned by the Navy, but on indefinite loan to the National Park Service.
Builders: Bethlehem, San Pedro.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| ex-DD 793 | Cassin Young | 1943/78 | ATL | Boston |
Nautilus attack submarineNotes: World's first nuclear-powered submarine, now preserved as a museum near the New London submarine base. She is moored outside the base at a privately-managed museum, but remains property of USN under administrative control of the submarine base. She was decommissioned 3 March 1980 at Mare Island and towed to New London in 1985.
Builders: General Dynamics/Electric Boat, Groton, CT.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| ex-SSN 571 | Nautilus | 1954/85 | ATL | Groton |
Pueblo
electronic surveillance ship
Notes: An electronic surveillance ship, officially designated as an environmental research ship, which was attacked and captured by North Korea 23 January 1968. One member of the crew was killed, and the survivors were held captive until 12/1968. The ship was towed to Wonson, North Korea. The ship is open to the public (for a fee) as a monument to the 'evil Americans'. The vessel is maintained in nominal commission in the US Navy to protest the seizure.
| Number | Name | Year | FLT | Homeport | Group | Notes |
| AGER 2 | Pueblo | 194?/67 | PAC | (Wonsan) |
| Number | Name | Description | Homeport/Unit |
| ASDV 1 | (none) | Swimmer/SEAL Training | EOD Mobile Unit 6 |
| ASDV 2 | (none) | Swimmer/SEAL Training | Special Boat Unit 20 |
| ASDV 3 | (none) | Swimmer/SEAL Training | SEAL Delivery Team 1 |
| IX 514 | (none) | Helicopter Training | NAS Pensacola, FL |
| LCU 1680 | (none) | Reserve Training | Naval Reserve, Buffalo, NY |
| LCU 1681 | (none) | Reserve Training | Naval Reserve, Tampa, FL |
| YP 676 | (none) | Training Craft | Naval Academy |
| YP 677 | (none) | Training Craft | Naval Academy |
| YP 680 | (none) | Training Craft | Naval Academy |
| YP 681 | (none) | Training Craft | Naval Academy |
| YP 682 | (none) | Training Craft | Naval Academy |
| YP 683 | (none) | Training Craft | Naval Academy |
| YP 684 | (none) | Training Craft | Naval Academy |
| YP 685 | (none) | Training Craft | Naval Academy |
| YP 686 | (none) | Training Craft | Naval Academy |
| YP 687 | (none) | Training Craft | Naval Academy |
| YP 688 | (none) | Training Craft | Naval Academy |
| YP 689 | (none) | Training Craft | Naval Academy |
| YP 690 | (none) | Training Craft | Naval Academy |
| YP 691 | (none) | Training Craft | Naval Academy |
| YP 692 | (none) | Training Craft | Naval Academy |
| YP 694 | (none) | Training Craft | Naval Academy |
| YP 695 | (none) | Training Craft | Naval Academy |
| YP 696 | (none) | Training Craft | NAS Pensacola, FL |
| YP 698 | (none) | Training Craft | Naval Academy |
| YP 700 | (none) | Training Craft | Naval Academy |
| YP 701 | (none) | Training Craft | NUWC, Keyport, WA |
| YP 702 | (none) | Training Craft | NAS Pensacola, FL |
| The Naval Academy also operates several hundred small sailing craft of various types. | |||
| Number | Name | Description | Homeport/Unit |
| YTB 760 | Natick | Harbor Tug | La Maddalena, Italy |
| YTB 761 | Ottumwa | Harbor Tug | Bangor, WA |
| YTB 764 | Mishawaka | Harbor Tug | Bangor, WA |
| YTB 765 | Okumulgee | Harbor Tug | Norfolk |
| YTB 767 | Apalachicola | Harbor Tug | Bremerton |
| YTB 771 | Keokuk | Harbor Tug | Portsmouth NSY |
| YTB 775 | Wauwatosa | Harbor Tug | Diego Garcia |
| YTB 779 | Manhattan | Harbor Tug | Bangor, WA |
| YTB 782 | Manistee | Harbor Tug | Yokosuka, Japan |
| YTB 783 | Redwing | Harbor Tug | Adak, AK |
| YTB 784 | Kalispell | Harbor Tug | Diego Garcia |
| YTB 787 | Kittanning | Harbor Tug | Yokosuka, Japan |
| YTB 789 | Tomahawk | Harbor Tug | Guantanamo Bay |
| YTB 796 | Saco | Harbor Tug | Diego Garcia |
| YTB 797 | Tamaqua | Harbor Tug | Diego Garcia |
| YTB 798 | Opelika | Harbor Tug | Yokosuka, Japan |
| YTB 807 | Massapequa | Harbor Tug | Yokosuka, Japan |
| YTB 808 | Wenatchee | Harbor Tug | Bremerton |
| YTB 810 | Anoka | Harbor Tug | Norfolk |
| YTB 812 | Accomac | Harbor Tug | Bremerton |
| YTB 818 | Mecosta | Harbor Tug | Adak, AK |
| YTB 820 | Wanamassa | Harbor Tug | Guantanamo Bay |
| YTB 822 | Pawhuska | Harbor Tug | Bremerton |
| YTB 823 | Canonchet | Harbor Tug | Bremerton |
| YTB 828 | Catahecassa | Harbor Tug | Bremerton |
| YTB 829 | Metacom | Harbor Tug | Groton |
| YTB 831 | Dekanawida | Harbor Tug | Norfolk |
| YTB 832 | Petalesharo | Harbor Tug | La Maddalena, Italy |
| YTB 835 | Skenandoa | Harbor Tug | Bremerton |
| YTB 836 | Pokagon | Harbor Tug | Bremerton |
| YTL 602 | (none) | Harbor Tug | Portsmouth |
| Number | Name | Description | Homeport/Unit |
| 165NS761 | Athena I | High-Speed Research Craft (ex-PG 94) | NSWC, Panama City, FL |
| 165NS762 | Athena II | High-Speed Research Craft (ex-PG 98) | NSWC, Panama City, FL |
| 165NS763 | Lauren | High-Speed Research Craft (ex-PG 100) | NSWC, Panama City, FL |
| (none) | Quest | SWATH test ship | Annapolis |
| (none) | Slice | SWATH test ship | Hawaii |
| 90WB8701 | Kaimalino | SWATH test ship (in reserve) | San Diego |
| IX 515 | (SES-200) | SES Trials Ship (in reserve) | NSWC, Suffolk, VA |
| 65TR671 | (none) | 65 ft. Torpedo Retriever | |
| TR 5 | Harrier | 65 ft. Torpedo Retriever | |
| TR 6 | Peregrine | 65 ft. Torpedo Retriever | |
| TRB 32 | (none) | 72 ft. Torpedo Retriever | |
| TRB 33 | (none) | 72 ft. Torpedo Retriever | |
| TRB 36 | (none) | 72 ft. Torpedo Retriever | NUWC, Keyport, WA |
| HM-9 | (none) | 85 ft. Missile Retriever | Port Hueneme |
| TWR 651 | (none) | 85 ft. Torpedo Retriever | |
| TWR 654 | (none) | 85 ft. Torpedo Retriever | |
| TWR 7 | Chaparral | 85 ft. Torpedo Retriever | Pearl Harbor |
| TWR 8 | Iliwai | 85 ft. Torpedo Retriever | Pearl Harbor |
| TWR 3 | Condor | 100 ft. Torpedo Retriever | Pearl Harbor |
| TWR 6 | Ferret | 100 ft. Torpedo Retriever | Pearl Harbor |
| TWR 771 | Phoenix | 100 ft. Torpedo Retriever | |
| 110WB8501 | Rangemaster | 110 ft. Torpedo Retriever | AUTEC Range |
| 126NS8801 | (none) | 120 ft. Missile Retriever | Kadena, Japan |
| SL-120 | (none) | 120 ft. Missile Retriever | Port Hueneme |
| TWR 821 | Swamp Fox | 120 ft. Torpedo Retriever | Groton |
| TWR 823 | Porpoise | 120 ft. Torpedo Retriever | San Diego |
| TWR 833 | (none) | 120 ft. Torpedo Retriever | |
| TWR 841 | (none) | 120 ft. Torpedo Retriever | AUTEC Range |
| TWR 842 | Narwhal | 120 ft. Torpedo Retriever | |
| 100NS7802 | Retriever | Weapons Recovery Boat | Norfolk |
| 100NS8701 | Transporter | Weapons Recovery Boat | Patuxent River |
| TSB 18 | (none) | Acoustic Monitoring Boat | NUWC, Keyport, WA |
| 36NS9101 | Captain Bart | Diving Trials Boat | Port Hueneme |
| -- | - | 85 ft "Guardian" High Speed Trials Craft | NSWC, Norfolk, VA | 65PB734 | Navy Prince | Gun Trials Boat | NSWC, Dahlgren |
| 65PB777 | Plymouth | Gun Trials Boat | NSWC, Dahlgren |
| 49NS9201 | (none) | Hydrographic Boat | Port Hueneme |
| 36NS9501 | (none) | Research Support Boat | Lake Pend Oreille, ID |
| IX 508 | (Orca) | ROV/AUV Test Support | U of Southern Miss. |
| 60NS9001 | (none) | Sonar Trials Support Boat | Lake Pend Oreille, ID |
| 111NS8801 | Acoustic Explorer | Sonobuoy Trials Craft | San Diego |
| (none) | (none) | Target Tracking Trials Boat | Port Hueneme |
| NAWC 03 | (none) | Trials Support Boat | NAWCAD, Key West |
| NAWC 57 | (none) | Trials Support Boat | NAWCAD, Key West | IX 531 | (none) | Technology Demonstration | Office Of Naval Research (ex-YP 679) |
| Number | Name | Description | Homeport/Unit |
| YDT 17 | Neptune | 132 ft. Dive Tender | Panama City, FL |
| YDT 18 | Poseidon | 132 ft. Dive Tender | Panama City, FL |
| C12739 | (none) | 64 ft. Utility Boat | |
| 65AR681 | (none) | 65 ft. Rescue Boat | |
| 85NS681 | (none) | 85 ft. Rescue Boat | |
| C14252 | (none) | 85 ft. Rescue Boat | |
| C14253 | (none) | 85 ft. Rescue Boat | |
| YSD 74 | (none) | Floating Crane | Pearl Harbor |
| LCU 1590 | (none) | Dive Tender | Mobile Dive/Salvage Unit |
| 40NS9801 | Ecos | Ecological Boat | San Diego |
| YFNX 30 | Sea Turtle | Submersible Support | San Diego |
| YP 663 | (none) | Utility Boat | Bremerton |
| YP 665 | (none) | Utility Boat | Bremerton |
| YP 697 | (none) | Utility Boat | NUWC, Keyport, WA WA |
| LCU 1590 | (none) | Utility Craft | Mobile Dive/Salvage Unit |
| LCU 1614 | (none) | Utility Craft | NAWCAD, Key West |
| LCU 1647 | (none) | Utility Craft | NAWCAD, Key West |
| LCU 1665 | (none) | Utility Craft | Fleet Activities, Sasebo, Japan |
| YFU 81 | (none) | Utility Craft | Roosevelt Roads |
| YFU 91 | (none) | Utility Craft (ex-LCU 1608) | Roosevelt Roads |
| YFB 92 | W.H. Allen | Yard Ferry | Guantanamo Bay |
| YFB 93 | R.W. Huntington | Yard Ferry | Guantanamo Bay |
| YFB 94 | (none) | Yard Ferry (ex-LCU 1504) | Roosevelt Roads |
| 63CC791 | (none) | CNO Yacht | Washington DC |
| 62NS8411 | Severn | Yacht | Naval Academy |
| C3148 | (none) | Yacht | Guam |
| C3007 | (none) | CINCPACFLT Yacht | Pearl Harbor |
| Number | Name | Description | Homeport/Unit |
| AFDM 10 | Resolute | 18,000 Ton Drydock | Norfolk |
| ARDM 4 | Shippingport | 7,800 Ton Drydock | Groton |
| ARDM 5 | Arco | 7,800 Ton Drydock | San Diego |
| AFDL 6 | Dynamic | 1,000 Ton Drydock | Little Creek |
| (none) | HMB-1 | Covered Drydock | San Diego |
| (none) | Flip | Oceanographic Research Barge | Scripps Instit. |
| 180NS4401 | (ex-Blackhaw) | Salvage Training Hulk (ex-WLB 390) | Little Creek |
| (none) | (ex-Mariposa) | Salvage Training Hulk (ex-WLB 397) | Little Creek |
| (none) | (ex-State of Maine) | Fire Test Hulk (ex-AP 198) | Mobile, AL |
| (none) | (ex-Shadwell) | Fire Test Hulk (ex-LSD 15) | Mobile, AL |
| IX 310 | (none) | Sonar Test Barge | NUWC, Lake Seneca, NY | IX 516 | (none) | Trident Missile Training Barge | Goose Creek, SC |
| IX 519 | (none) | Boat Landing Stage (ex-YC 1643) | Gaeta, Italy/USS LaSalle |
| IX 520 | (none) | Barracks Barge (ex-APL 19) | Norfolk |
| IX 521 | (none) | Target Support Barge (ex-AFDB 1D) | Pearl Harbor |
| IX 522 | (none) | Target Support Barge (ex-AFDB 2D) | Pearl Harbor |
| IX 523 | (none) | Boarding Party Training Hulk (ex-YOG 93) | Little Creek |
| IX 524 | (none) | Target Support Barge (ex-AFDB 2F) | PMRF, Kekha, HI |
| IX 525 | (none) | Target Support Barge (ex-AFDB 1C) | PMRF, Kekha, HI |
| IX 527 | (none) | Submarine Test Support Barge (ex-YFN 1259) | NSWC, Ketchikan, AK |
| IX 528 | (none) | Submarine Test Support Barge (ex-YRDH 1) | NSWC, Ketchikan, AK |
| IX 530 | (none) | Dive Support Barge | Southwest Regional Maintenance Center |
| MTS 626 | Daniel Webster | Reactor Training Craft | Charleston |
| MTS 635 | Rayburn | Reactor Training Craft | Charleston |
| YCF 16 | (none) | Sonar Test Barge | NUWC, Lake Seneca, NY |
| YFNX 22 | (none) | Sonar Test Barge | NUWC, Lake Seneca, NY |