USS Aegir (AS-23) was the lead ship

Lead ship

The lead ship or class leader is the first of a series or class of ships all constructed according to the same general design. The term is applicable military ships and larger civilian craft.-Overview:...

 of her class of submarine tender

Submarine tender

A submarine tender is a type of ship that supplies and supports submarines.Submarines are small compared to most oceangoing vessels, and generally do not have the ability to carry large amounts of food, fuel, torpedoes, and other supplies, nor to carry a full array of maintenance equipment and...

s in the United States Navy

United States Navy

The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

.

Aegir was laid down on 31 March 1943 under a Maritime Commission contract (MC hull 856) by the Ingalls Shipbuilding Company in Pascagoula, Mississippi

Pascagoula, Mississippi

Pascagoula is a city in Jackson County, Mississippi, United States. It is the principal city of the Pascagoula, Mississippi Metropolitan Statistical Area, as a part of the Gulfport–Biloxi–Pascagoula, Mississippi Combined Statistical Area. The population was 26,200 at the 2000 census...

 and launched on 15 September 1943, sponsored by Mrs. James A. Sweeney. The ship was acquired by the Navy and placed in temporary commission on 20 November 1943 for passage to her conversion yard where she was turned over to the Todd Shipyards Corporation in Brooklyn, New York for conversion to a submarine tender

Submarine tender

A submarine tender is a type of ship that supplies and supports submarines.Submarines are small compared to most oceangoing vessels, and generally do not have the ability to carry large amounts of food, fuel, torpedoes, and other supplies, nor to carry a full array of maintenance equipment and...

 on 3 December 1943. Simultaneously decommissioned and placed in full commission at the Brooklyn Navy Yard

Brooklyn Navy Yard

The United States Navy Yard, New York–better known as the Brooklyn Navy Yard or the New York Naval Shipyard –was an American shipyard located in Brooklyn, northeast of the Battery on the East River in Wallabout Basin, a semicircular bend of the river across from Corlear's Hook in Manhattan...

 on 8 September 1944 with Commander A. L. Prosser in command.

Service history

In early October, Aegir reported to New London, Connecticut

New London, Connecticut

New London is a seaport city and a port of entry on the northeast coast of the United States.It is located at the mouth of the Thames River in New London County, southeastern Connecticut....

 for shakedown

Sea trial

A sea trial is the testing phase of a watercraft . It is also referred to as a "shakedown cruise" by many naval personnel. It is usually the last phase of construction and takes place on open water, and can last from a few hours to many days.Sea trials are conducted to measure a vessel’s...

. On 23 October, the tender got underway for Pearl Harbor

Pearl Harbor

Pearl Harbor, known to Hawaiians as Puuloa, is a lagoon harbor on the island of Oahu, Hawaii, west of Honolulu. Much of the harbor and surrounding lands is a United States Navy deep-water naval base. It is also the headquarters of the U.S. Pacific Fleet...

 via the Panama Canal

Panama Canal

The Panama Canal is a ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Built from 1904 to 1914, the canal has seen annual traffic rise from about 1,000 ships early on to 14,702 vessels measuring a total of 309.6...

 and San Diego, California

San Diego, California

San Diego is the eighth-largest city in the United States and second-largest city in California. The city is located on the coast of the Pacific Ocean in Southern California, immediately adjacent to the Mexican border. The birthplace of California, San Diego is known for its mild year-round...

. She reached Hawaii

Hawaii

Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...

 on 18 November and was assigned to Submarine Squadron 24 (SubRon 24). Aegir traveled to Midway later that month. She remained stationed at that island until 1 September 1945. During this period, Aegir furnished refitting and tender services to the submarines of SubRon 24.

Aegir returned to the west coast of the United States on 11 September and was moored at the Mare Island Naval Shipyard

Mare Island Naval Shipyard

The Mare Island Naval Shipyard was the first United States Navy base established on the Pacific Ocean. It is located 25 miles northeast of San Francisco in Vallejo, California. The Napa River goes through the Mare Island Strait and separates the peninsula shipyard from the main portion of the...

. There, she furnished services to submarines awaiting decommissioning. Aegir was placed out of commission, in reserve, at Mare Island on 18 October 1946. Then in 1960 used as a maintenance ship at San Diego PacResFlt and then returned to Mare Island Naval Shipyard and remained there until her name was struck from the Navy list on 1 June 1971. The ship was sold on 16 May 1972 to National Metal and Steel

National Metal and Steel

National Metal and Steel Corporation was engaged in ship dismantling operations at Terminal Island in Los Angeles, California. Operations ceased on 1 January 1986 when the company lost its harbor facility....

 at Terminal Island, California, and scrapped.

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