The Military Sealift Command (MSC) is an organization that controls the replenishment and military transport ships of the United States Navy. Military Sealift Command has the responsibility for providing sealift and ocean transportation for all US military services as well as for other government agencies. It first came into existence on 9 July 1949 when the Military Sea Transportation Service (MSTS) became solely responsible for the Department of Defense's ocean transport needs. The MSTS was renamed the Military Sealift Command in 1970.
USNS Kingsport (T-AG-164) was built as SS Kingsport Victory, a United States Maritime Commission VC2-S-AP3 (Victory) type cargo ship. During the closing days of World War II the ship was operated by the American Hawaiian Steamship Company under an agreement with the War Shipping Administration. After a period of layup the ship was operated as USAT Kingsport Victory by the Army under bareboat charter effective 8 July 1948. When Army transports were transferred to the Navy's Military Sea Transportation Service the ship continued as USNS Kingsport Victory (T-AK-239), a cargo transport. On 14 November 1961, after conversion into the first satellite communication ship, the ship was renamed Kingsport, reclassified as a general auxiliary, and operated as USNS Kingsport (T-AG-164).
A small waterplane area twin hull, better known by the acronym SWATH, is a catamaran design that minimizes hull cross section area at the sea's surface. Minimizing the ship's volume near the surface area of the sea, where wave energy is located, minimizes a vessel's response to sea state, even in high seas and at high speeds. The bulk of the displacement necessary to keep the ship afloat is located beneath the waves, where it is less affected by wave action. Wave excitation drops exponentially as depth increases, so wave action normally does not affect a submerged submarine at all. Placing the majority of a ship's displacement under the waves is similar in concept to creating a ship that rides atop twin submarines.
USNS Redstone, designated T‑AGM‑20, was a tracking ship assigned to Apollo space mission support under the control of the Eastern Range. For a brief time during conversion the ship was named Johnstown with the designation AGM‑20.
SS Mission San Antonio was a Type T2-SE-A2 tanker built for the United States Maritime Commission during World War II. After the war she was acquired by the United States Navy as USS Mission San Antonio (AO-119). Later the tanker transferred to the Military Sea Transportation Service as USNS Mission San Antonio (T-AO-119). She was a Mission Buenaventura-class oiler and was named for Mission San Antonio de Padua located near Jolon, California.
SS Mission San Fernando was a Type T2-SE-A2 tanker built for the United States Maritime Commission during World War II. After the war she was acquired by the United States Navy as USS Mission San Fernando (AO-122). Later the tanker transferred to the Military Sea Transportation Service as USNS Mission San Fernando (T-AO-122). She was a member of the Mission Buenaventura-class oiler and was named for Mission San Fernando Rey de España in Los Angeles. She was later renamed USNS Muscle Shoals (T-AGM-19), and, later, USNS Vanguard (T-AG-194).
SS Mission Santa Clara was a Type T2-SE-A2 tanker built for the United States Maritime Commission during World War II. After the war she was acquired by the United States Navy as USS Mission Santa Clara (AO-132). Later the tanker transferred to the Military Sea Transportation Service as USNS Mission Santa Clara (T-AO-132). She was a Mission Buenaventura-class oiler and was named for Mission Santa Clara de Asís in Santa Clara, California.
SS Mission Carmel was a Type T2-SE-A2 tanker built for the United States Maritime Commission during World War II. After the war she was acquired by the United States Navy as USS Mission Carmel (AO-113). Later the tanker transferred to the Military Sea Transportation Service as USNS Mission Carmel (T-AO-113). She was a member of the Mission Buenaventura-class oiler and was one of two named for Mission San Carlos Borroméo de Carmelo located in Carmel-by-the-Sea, California, the other being Mission San Carlos.
USNS Vindicator (T-AGOS-3) was a United States Navy Stalwart-class modified tactical auxiliary general ocean surveillance ship that was in service from 1984 to 1993. Vindicator then served in the United States Coast Guard from 1994 to 2001 as the medium endurance cutter USCGC Vindicator (WMEC-3). From 2004 to 2020, she was in commission in the National Oceanic and Atmospheric Administration (NOAA) fleet as the oceanographic research ship NOAAS Hiʻialakai.
USNS Indomitable (T-AGOS-7) was a United States Navy Stalwart-class ocean surveillance ship in service from 1985 to 2002. From 2003 until 18 June 2014, she was in commission in the National Oceanic and Atmospheric Administration (NOAA) as the oceanographic research ship NOAAS McArthur II. As of 2018 it serves as a mother ship now named the Deep Submersible Support Vessel (DSSV) Pressure Drop for the crewed deep-ocean research submersible DSV Limiting Factor.
USNS Titan (T-AGOS-15) was a Stalwart-class modified tactical auxiliary general ocean surveillance ship in service in the United States Navy from 1989 to 1993. From 1996 to 2014, she was in commission in the National Oceanic and Atmospheric Administration (NOAA) fleet as the oceanographic research ship NOAAS Ka'imimoana.
USNS Capable (T-AGOS-16) was a Stalwart-class modified tactical auxiliary general ocean surveillance ship of the United States Navy in service from 1989 to 2004. In 2008, she was commissioned into service in the National Oceanic and Atmospheric Administration as the oceanographic research ship NOAAS Okeanos Explorer.
The TS Golden Bear is the training ship of the California State University Maritime Academy (CSUMA), a campus of the California State University. The first training ship of the then–California Nautical School was known as the Training Ship California State, then as the T.S. Golden State. Since then, there have been three ships to bear the name T.S. Golden Bear.
USNS Neptune (ARC-2), was the lead ship in her class of cable repair ships in U.S. Naval service. The ship was built by Pusey & Jones Corp. of Wilmington, Delaware, Hull Number 1108, as the USACS William H. G. Bullard named for Rear Adm. William H. G. Bullard. She was the first of two Maritime Commission type S3-S2-BP1 ships built for the US Army Signal Corps near the end of World War II. The other ship was the Albert J. Myer, which later joined her sister ship in naval service as the USNS Albert J. Myer (T-ARC-6).
TS State of Maine is the training ship of the Maine Maritime Academy. Originally commissioned by the United States Navy as USNS Tanner (T-AGS-40), the ship assumed her present name and role in June 1997.
USNS Sgt. Curtis F. Shoup (T-AG-175) was a C1-M-AV1 coastal freighter. Built as Spindle Eye, one of the many named for knots. The ship, modified to be a "news transmission ship" for the press during the planned invasion of Japan, was completed 9 July 1945, delivered to the War Shipping Administration and placed under its agent Lykes Brothers Steamship Company the same day. Days later, on 26 July, Spindle Eye was bareboat chartered to the War Department for operation by the Army. The ship was renamed November 1947 by the Army, after serving as a radio relay ship at the Operation Crossroads atomic bomb tests and conversion to an Army passenger-cargo vessel, Sgt. Curtis F. Shoup in honor Sergeant Curtis F. Shoup who had been awarded the Medal of Honor.
USS Pembina (AK-200) – later known as USNS Pembina (T-AK-200) -- was an Alamosa-class cargo ship that was constructed for the U.S. Navy during the closing period of World War II. She supported the end-of-war Navy effort and was subsequently placed in service with the US Army under the Shipping Control Authority for the Japanese Merchant Marine with a Japanese crew in Yokosuka, Japan.
USNS Flyer (T-AG-178), was a type C2-S-B1 cargo ship built for the Maritime Commission (MC) as Water Witch in service under charter by the commission to several lines until purchased in 1946 by United States Lines and renamed American Flyer. After being placed in the Reserve Fleet 14 December 1964 the title was transferred to the United States Navy for use as a deep ocean bathymetric survey ship supporting installation of the Sound Surveillance System (SOSUS). The Navy placed the ship in service 9 February 1965 with the name Flyer given on 22 March. The ship operated in that role until 1975.
The Suisun Bay Reserve Fleet colloquially known as the mothball fleet, is located on the northwest side of Suisun Bay in Benicia, California. The fleet is within a regulated navigation area that is about 4+1⁄2 miles long and 1⁄2 mile (0.80 km) wide. It begins just north of the Union Pacific Railroad Bridge and runs northeast, parallel to the shoreline. Water depths range from about 46 feet at Mean Lower Low Water (MLLW) at the foot of the anchorage, to about 26 feet (8 m) MLLW at the shallowest berths towards the northern end of the anchorage. As of February 2024, seven ships remain in the fleet.
USNS Upshur (T-AP-198), was a Barrett Class transport named in honor of Major General William P. Upshur, USMC.
United States
