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...

The SSN(X) or Next-Generation Attack Submarine program of the United States Navy aims to develop a new class of nuclear-powered attack submarine with vertical...

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

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...

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

The SSN-AUKUS, also known as the SSN-A, is a planned class of nuclear-powered attack submarine (SSN) intended to enter service with the United Kingdom's...

The Project 949 submarines were the largest cruise missile submarines in service until some Ohio-class ballistic missile submarines were converted to...

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 Dolphin class (Hebrew: הצוללות מסדרת דולפין) is a diesel-electric submarine developed in Israel and constructed by Howaldtswerke-Deutsche Werft (HDW)...

submarine Kaiman-class submarine Morzh-class submarine Narval-class submarine Krab Amerikansky Golland (Holland 602GF/602L type) Bars-class submarine...

(93 km) at 28 knots (52 km/h). Orca class post-war midget submarine: 13.27 meter x 2.1 meter 5 men midget submarine with maximum depth of 100, maximum...

The Amphion class (also known as the "A" class and Acheron class) of British diesel-electric submarines were designed for use in the Pacific War. Only...

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

The Sturgeon class (known colloquially in naval circles as the 637 class) was a class of thirty-seven nuclear-powered fast attack submarines (SSN) in service...

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

The Cosmos-class submarine, officially Cos.Mo.S MG-110 locally designated as X-Craft, are a class of midget submarines designed by the Italian firm Cos...

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 Type 039A submarine (NATO reporting name: Yuan class) is a class of diesel-electric submarine in China's People's Liberation Army Navy. It is China's...

used as long-range merchant submarines, a task they shared with the Type IXD and Italian Romolo-class submarines. The Type X was originally designed specifically...

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...

Severodvinsk), also referred to as the Graney class, are a series of Nuclear-powered attack submarine (SSN) designed by the Malakhit Marine Engineering...

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

The Gotland-class submarines of the Swedish Navy are modern diesel-electric submarines, which were designed and built by the Kockums shipyard in Sweden...

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

of diesel-electric attack submarines developed exclusively for export by Howaldtswerke-Deutsche Werft of Germany. Five class variants (Types 209/1100,...

The Taigei-class submarines (29SS; (Japanese: たいげい, "Big Whale") is a new class of attack submarines after 2022, developed for the Japan Maritime Self-Defense...

The Collins-class submarines are Australian-built diesel-electric submarines operated by the Royal Australian Navy (RAN). The Collins class takes its name...

The S-80 Plus class (or Isaac Peral class) is a Spanish class of four submarines being built by the state-owned Spanish company Navantia at its Cartagena...

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...

experimental X-class submarines. Bolton is assigned by Vice-Admiral Redmayne (Rupert Davies) to quickly train crews to man the submarines and sink the...