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

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 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...

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

The Dakar-class submarine (Hebrew : הצוללות מסדרת דקר) is a class of AIP-capable, diesel-electric multipurpose attack submarines ordered by the Israeli...

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...

S5 is the code name for a planned class of Indian nuclear-powered ballistic missile submarines currently being developed for the Indian Navy. S5 will weigh...

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

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

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

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

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...

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

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 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...

(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...

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

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...

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...

meaning 'shark', NATO reporting name Typhoon), was a class of nuclear-powered ballistic missile submarines designed and built by the Soviet Union for the Soviet...

as a follow-up of the single "X-Ray"-class boat AS-23 (Project 1851). They are both part of the 29th special submarine squadron at Olenya Guba. The surface...

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