USN – Current Auxiliaries and Other Ships

USN Current Auxiliaries and Other Ships (see also retired listing)

Back to USN Current Patrol Vessels

Mine Countermeasures Ships

Avenger Class LOA 224′ / 68.3 m TDISP 1,300 tons (14 built, 11 active, 1 accidentally lost)Avenger class San Diego 2018

Expeditionary Fast Transports (EPF)

Spearhead Class LOA 338′ / 103 m TDISP 1,500 tons (10 active) Distinctive catamaran hull

USNS Carson City Arrives in Mindelo, Cabo Verde
USNS Carson City T-EPF-7 Arrives in Mindelo, Cabo Verde, 2019 US Navy: 5648507 CPO Travis Simmons

USNS Burlington T-EPF-10 (2018) Little Creek VAUSNS Burlington TEPF-10 Little Creek CA 2019

USNS Carson City Departs Nigeria
USNS Carson City T-EPF-7 Departs Nigeria, 2019 US Navy: 5648498 CPO Travis SImmons

Spearhead class EFT UAE 2016

Experimental Littoral Combat Ship

Sea Fighter FSF-1 (2005) LOA 262′ / 79.9 m TDISP 1,600 tons SWATH hull design (Catamaran)Sea Fighter FSF-1 Panama City FL 2015

Experimental demonstrator  (electric)

Sea Jet (2005) LOA 133’/40.5 m TDISP 122 tons an electric-propelled ship demonstrator with the whole configuration of a quarter scale Zumwalt class destroyer.

The Advanced Electric Ship Demonstrator (AESD), Sea Jet, undergoes sea trials on Lake Pend Oreille at the Naval Surface Warfare Center Carderock Division, Acoustic Research Detachment in Bayview, Idaho 2005.  USN photo by John F. Williams, Public domain, via Wikimedia Commons

Sea Jet demo Bayview ID 2014

Submarine Tenders

Emory S. Land Class LOA 649′ / 197.8 m TDISP 23,000 tons (2 active, 1 retired)

USS Emory S. Land AS-39 (1979)

USS Emory S. Land La Maddalena Italy, 2001 NARA: 330-CFD-DN-SD-03-09095 PH3 Jodi L. Vogelsong, USN

Emory S. Land (AS-39) Guam 2016

Expeditionary Mobile Base (ESB) This is a whole new class of vessels, that are adapted from oil tankers. They are cut down to feature large open well deck areas to handle amphibious forces, including Landing Craft Air-Cushioned (LCAC), and in the case of the Lewis B. Puller below, have a flight deck built on top to handle up to 4 helicopters, with a hangar and other facilities built over the bows. The whole offers an inexpensive alternative to the landing ship docks above, which, in low intensity use, could base the same amphibious and air units (or warsearcher staff have the whole concept wrong).

USS Lewis B. Puller ESB-3 (2017) LOA 763′ / 232.6 m TDISP 80,000 tons

U.S. Navy ships transit Strait of Hormuz
USS Lewis B. Puller T-ESB-3 US Navy 4846882 PO2 Jonathan Clay

Expeditionary Mobile Base San Diego 2017USS Lewis B. Puller ESB UAE 2019

Lewis B. Puller building San Diego 2021
Based on the date, this is likely the future USS John L. Canley ESB-6 building at NASSCO, San Diego.

Expeditionary Transfer Dock (ESD)

USNS John Glenn T-ESD-2 (2014) Montford Point Class LOA 765′ / 233.2 m TDISP 34,500 tons. Formerly called a Mobile Landing Platform. Similar to the Expeditionary Mobile Base, a slightly earlier variation on the same basic Alaska tanker design.USNS John Glenn T-ESD-2 Everett 2015 Special Operations Mothership

MV Ocean Trader (ca. 2016) LOA 633′ / 192.9 m TDISP 20,650 tons, formerly MV Cragside (2011) Reportedly a highly secretive mothership packed with special operations gear. The vessel was converted in Mobile AB, and now features large twin hangars infront of the superstructure, and ports along the side to launch craft.

MV Cragside conversion to Ocean Trader in Mobile AB. Taken during October 2015, this shows the hangars being built forward of the superstructure, and the cut-outs for launching special types of craft being added [Cropped view]. Credit: Jabarnes / CC BY-SA 


Landing Craft

Landing Craft Utility several classes LOA 115-135′ / 35.1-41.1 m TDISP 350 – 390 tons

USS Harpers Ferry Conducts Well Deck Operations
LCU-1630 exiting the well deck of USS Harpers Ferry LSD-49, Nov. 2019. US Navy Official 5937735 PO3 Danielle Baker.

LCU 1610 or 1627 type:Landing Craft Utility Camp Pendleton 2016Landing Craft Mechanized LCM-8 type LOA 74′ / 22.6 m TDISP 111 tons (in service since 1959, several variants, large number still in service)LCM-8 type Coronado 2012

Large Non-Combattants

Hospital Ships

Mercy Class LOA 894′ / 272.5 m TDISP 65,500 tons

USNS Mercy (1986)USNS Comfort (1986)

USNS Comfort 2002 NARA: 330-CFD-DN-SC-03-10222 Don S. Montgomery, USN (Ret.)

USNS Comfort Norfolk 2018


Bob Hope Class Vehicle Cargo Ships LOA 951′ / 289.9 m TDISP 62,000 tons, (about the size of a Forrestal Class aircraft carrier) in service 1998 – with Military Sealift CommandUSNS Bob Hope Class Bremerton WA 2018.jpgUSNS Bob Hope Class Avondale yards 1998

USNS Mendonca 2000 NARA: 330-CFD-DN-SC-03-10021 Ricky Kellum Litton-Avondale Ind

Miscellaneous auxiliaries

USS Pueblo AGEF-2 (1966) environmental research and spy ship captured by North Koreans in Jan. 1968. LOA 177’ / 54 m TDISP 900 tons. Currently a museum ship or monument at the Victorious Fatherland Memorial/Museum in Pyongyang. Pueblo was originally constructed as a small Army coastal cargo vessel in 1944.

USS Pueblo in Oct. 2013. Credit: Clay Gilliland / CC BY-SA

USS Pueblo AGER-2 Pyongyang NK 2020

Continue to USN Currently Commissioned Historic Ships

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