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 submarines to succeed...

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

The Virginia class, or the SSN-774 class, is the newest class of nuclear-powered cruise missile fast attack submarines in service with the United States...

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

design is an evolution of the Oyashio-class submarine, from which it can most easily be distinguished by its X-shaped stern combination diving planes...

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

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

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

The Type 214 is a class of diesel-electric submarines developed exclusively for export by Howaldtswerke-Deutsche Werft GmbH (HDW). It features diesel...

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

(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...

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

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

new type of nuclear ballistic missile submarine, as a reaction to the United States Navy's new Ohio-class submarine. The Russian Navy cancelled its Typhoon...

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...

Whiskey-class submarines (known in the Soviet Union as Projects 613, 640, 644, and 665) are a class of diesel-electric attack submarines that the Soviet...

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...

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

The Project 670 Skat submarine (NATO classification Charlie class) was a nuclear-powered cruise missile submarine built for the Soviet Navy and later operated...

The George Washington class was a class of nuclear-powered ballistic missile submarines deployed by the United States Navy. George Washington, along with...

Severodvinsk), also referred to as the Graney class, are a series of nuclear-powered cruise missile submarines designed by the Malakhit Marine Engineering...

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...

transports, a task they shared with the Type IXD and Italian Romolo-class submarines. The Type X was originally designed specifically to accommodate the newly...

one of the most advanced non-nuclear submarine-classes in the world, incorporating many new features including x-rudder and anechoic tiles. Both speed...

The Shchuka-class submarines (Russian: Щука), also referred to as Sh or Shch-class submarines, were a medium-sized class of Soviet submarines, built in...

The Barracuda class (or Suffren class) is a class of nuclear attack submarines, designed by the French shipbuilder Naval Group (formerly known as DCNS...

The Kalvari-class submarines, formally classified as the Project-75 submarines (P-75), is a class of diesel-electric attack submarines operated by the...

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