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A submarine (or sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) [2] The term "submarine" is also sometimes used historically or informally to refer to remotely operated vehicles and robots, or to medium-sized or smaller vessels (such as the midget submarine and the wet sub).
A submarine squadron (SUBRON) is a naval formation or unit in such states such as the United Kingdom, United States, and Russia/Soviet Union. In France the equivalent unit is the escadrille des sous-marins nucléaires d'attaque (ESNA), part of the French submarine forces (and before the Second World War, escadrilles de sous-marins).
Submarines of the United States Navy are built in classes, using a single design for a number of boats. Minor variations occur as improvements are incorporated into the design, so later boats of a class may be more capable than earlier.
A flotilla is usually composed of a homogeneous group of the same class of warship, such as frigates, destroyers, torpedo boats, submarines, gunboats, or minesweepers. Groups of larger warships are usually called squadrons , but similar units of non-capital ships may be called squadrons in some instances, and flotillas in others.
This is a list of submarine classes, sorted by country. The navies of 46 states operate submarines. The navies of 46 states operate submarines. This is a dynamic list and may never be able to satisfy particular standards for completeness.
Last conventionally powered submarine built for the US Navy. Laid after Blueback but launched and commissioned before SSN-583 Sargo: SSN-584 Seadragon: First submarine to complete a submerged circumnavigation of the Northwest Passage. SSN-585 Skipjack: Lead boat of a class of 6. First nuclear powered submarine with a teardrop hull. SSRN-586 Triton
Type 212 submarine. Builders: Germany / Italy; Displacement: 1,830/2,500 tons ("A" or "CD" variant) Operators: German Navy: 6 in service (A), 2 more ordered (CD) Marina Militare: 4 in service (A), 3 more ordered with option for a fourth (A) – known as the Todaro-class Royal Norwegian Navy: 4 ordered (CD) Type 214 submarine. Builder: Germany
A-class submarine (1903) Danish A class submarine; Type A submarine; Norwegian A-class submarine; AA-1-class submarine; Abtao-class submarine; Adua-class submarine; Agosta-class submarine; Akula-class submarine; Albacora-class submarine; Alfa-class submarine; Brazilian submarine Álvaro Alberto; French submarine Amiral Bourgois; Amphion-class ...