The Royal Navy's T class (or Triton class) of diesel-electric submarines was designed in the 1930s to replace the O, P, and R classes. Fifty-three members...

The AA-1 class was a class of three experimental submarines of the United States Navy, built toward the end of World War I, between 1916 and 1920, intended...

The T-1-class submarines were a pair of submarines designed by the United States Navy and built in the early 1950s for use in training submarine personnel...

Two classes of submarine are known as the T class: The AA-1-class submarine was a series of three experimental submarines of the United States Navy also...

The Virginia class, or the SSN-774 class, is a class of nuclear-powered attack submarine with cruise missile capability in service with the United States...

first boats of the class were based on the export-only German 209-class submarines, but modified and enlarged. The Dolphin 1 sub-class is slightly larger...

Ohio class of nuclear-powered submarines includes the United States Navy's 14 ballistic missile submarines (SSBNs) and its 4 cruise missile submarines (SSGNs)...

Angeles class of submarines are nuclear-powered fast attack submarines (SSN) in service with the United States Navy. Also known as the 688 class (pronounced...

Columbia-class (formerly known as the Ohio Replacement Submarine and SSBN-X Future Follow-on Submarine) are nuclear-powered ballistic missile submarines of...

The Arihant-class (lit. 'Vanquisher of the Enemy') is a class of nuclear-powered ballistic missile submarines in service with Indian Navy. They were developed...

series of nuclear-powered ballistic missile submarines being constructed by Sevmash for the Russian Navy. The class has been replacing the steadily retiring...

The Gato class of submarines were built for the United States Navy and launched in 1941–1943. Named after the lead ship of the class, USS Gato, they were...

The Kilo-class submarines are a group of diesel-electric attack submarines designed by the Rubin Design Bureau in the Soviet Union in the 1970s and built...

The Seawolf class is a class of nuclear-powered, fast attack submarines (SSN) in service with the United States Navy. The class was the intended successor...

The British U-class submarines (officially "War Emergency 1940 and 1941 programmes, short hull") were a class of 49 small submarines built just before...

Astute class is the latest class of nuclear-powered attack submarines in service with the Royal Navy. The boats are constructed by BAE Systems Submarines at...

The Invincible-class submarines, formally classified as the Type 218SG submarines, is a class of conventionally-powered attack submarines on order by the...

The Suffren class is a class of nuclear-powered attack submarines, designed by the French shipbuilder Naval Group (formerly known as DCNS and DCN) for...

generation nuclear-powered attack submarines (SSNs) first deployed by the Soviet Navy in 1986. There are four sub-classes or flights of Shchuka-B, consisting...

Agosta-class submarine is a class of diesel-electric attack submarine developed and constructed by the French DCNS in the 1970s to succeed the Daphné-class submarines...

Balao class is a design of United States Navy submarine that was used during World War II, and with 120 boats completed, the largest class of submarines in...

Kalvari-class submarines (lit. 'Tiger shark'), formally classified as the Project-75 submarines (P-75), is a class of diesel-electric attack submarines operated...

The Hangor-class submarines are a class of diesel–electric attack submarines currently being manufactured by a joint-partnership of the China Shipbuilding...

The Sōryū-class submarines (16SS) are diesel-electric attack submarines. The first boat in the class entered service with the Japan Maritime Self-Defense...

The Dreadnought class is the future replacement for the Royal Navy's Vanguard class of ballistic missile submarines. Like their predecessors they will...

The Scorpène-class submarines are a class of diesel-electric attack submarines jointly developed by the French Naval Group (formerly the DCNS) and the...

The X class was a World War II midget submarine class built for the Royal Navy during 1943–44. It was substantially larger than the original Chariot manned...

Upholder/Victoria-class submarines, also known as the Type 2400 (due to their displacement of 2,400 tonnes), are a class of diesel-electric submarines built in...

The Triomphant class of ballistic missile submarines of the French Navy is the active lead boat class of four boats that entered service in 1997, 1999...

Trafalgar class was a class of nuclear-powered fleet submarines (SSNs) in service with the Royal Navy, and the successor to the Swiftsure class. Like the...