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Naval Submarine Base New London is the United States Navy's primary East Coast submarine base, also known as the "Home of the Submarine Force". It is located in Groton, Connecticut.
The Mare Island Naval Shipyard (MINSY) 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 city of Vallejo. MINSY made a name for itself as the premier US West Coast submarine port as well as serving as the controlling force in San Francisco Bay Area shipbuilding efforts during World War II. The base closed in 1996 and has gone through several redevelopment phases. It was registered as a California Historical Landmark in 1960, and parts of it were declared a National Historic Landmark District in 1975.
The Gato class was a class of submarines built for the United States Navy and launched in 1941–1943; they were the first mass-production U.S. submarine class of World War II. Together with their near-sisters the Balao and Tench classes, their design formed the majority of the United States Navy's World War II submarine fleet. Named after the lead ship of the class, USS Gato, the Gatos and their successors formed the core of the submarine service that was largely responsible for the destruction of the Japanese merchant marine and a large portion of the Imperial Japanese Navy in World War II. Gato's name comes from a species of small catshark. Like most other U.S. Navy submarines of the period, boats of the Gato class were given the names of marine creatures. In some references, the Gatos are combined with their successors, especially the Balao class.
USS Nautilus (SSN-571) was the world's first operational nuclear-powered submarine and the first submarine to complete a submerged transit of the North Pole on 3 August 1958.
USS Marlin (SST-2), originally USS T-2 (SST-2), was a T-1-class training submarine in commission from 1953 to 1973. She was the second submarine of the United States Navy to be named for the marlin, a large game fish. Except for the first 25 early development pre-WWI subs, she was one of the smallest operational submarines ever built for the U.S. Navy.
A nuclear submarine is a submarine powered by a nuclear reactor. The performance advantages of nuclear submarines over "conventional" submarines are considerable. Nuclear propulsion, being completely independent of air, frees the submarine from the need to surface frequently, as is necessary for conventional submarines. The large amount of power generated by a nuclear reactor allows nuclear submarines to operate at high speed for long periods of time; and the long interval between refuelings grants a range virtually unlimited, making the only limits on voyage times being imposed by such factors as the need to restock food or other consumables.
USS Cavalla (SS/SSK/AGSS-244), a Gato-class submarine, was a ship of the United States Navy named for a salt water fish, best known for sinking the Japanese aircraft carrier Shōkaku, a veteran of the Pearl Harbor attack.
USS Moray (SS-300), a Balao-class submarine, was a ship of the United States Navy named for the moray, a family of large eels found in crevices of coral reefs in tropical and subtropical oceans.
USS Bremerton (SSN-698), a Los Angeles-class submarine, is the second vessel of the United States Navy to be named for Bremerton, Washington. The contract to build her was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut on 24 January 1972 and her keel was laid down on 8 May 1976. She was launched on 22 July 1978 sponsored by Mrs. Helen Jackson, wife of Henry M. Jackson, and commissioned on 28 March 1981 with Captain Thomas H. Anderson in command.
USS Hammerhead (SS-364), a Gato-class submarine, was the first ship of the United States Navy to be named for the hammerhead shark; a shark found in warm seas with a flattened anterior forward of the gill slits, presenting a hammer-like silhouette when viewed from above.
Battleship Memorial Park is a military history park and museum located on the western shore of Mobile Bay in Mobile, Alabama. It has a collection of notable aircraft and museum ships including the South Dakota-class battleship USS Alabama and Gato-class submarine USS Drum. USS Alabama and USS Drum are both National Historic Landmarks; the park as a whole was listed on the Alabama Register of Landmarks and Heritage prior to that time, on October 28, 1977.
USS Greenlet (ASR-10) was a Chanticleer-class submarine rescue ship in the United States Navy.
The 5"/25 caliber gun entered service as the standard heavy anti-aircraft (AA) gun for United States Washington Naval Treaty cruisers commissioned in the 1920s and 1930s. The goal of the 5"/25 design was to produce a heavy AA gun that was light enough to be rapidly trained manually. The gun was also mounted on pre-World War II battleships and aircraft carriers until replaced by the standard dual-purpose 5"/38 caliber gun, which was derived from the 5"/25 and was similar except for the barrel length. Guns removed from battleships were probably converted for submarine use by late 1943, while a purpose-built variant for submarines was available in mid-1944, and was widely used by them. United States naval gun terminology indicates the gun fired a projectile 5 inches (127 mm) in diameter, and the barrel was 25 calibers long.
At least two ships of the Hellenic Navy have borne the name Poseidon, after the ancient Greek god of the sea Poseidon:
