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The Type 214 is a class of diesel–electric submarines developed exclusively for export by Howaldtswerke-Deutsche Werft GmbH (HDW). [1] It features diesel propulsion with an air-independent propulsion (AIP) system using Siemens polymer electrolyte membrane (PEM) hydrogen fuel cells.
The Gotland-class submarines of the Swedish Navy are modern diesel-electric submarines, which were designed and built by the Kockums shipyard in Sweden. They are the first submarines in the world to feature a Stirling engine air-independent propulsion (AIP) system, which extends their underwater endurance from a few days to weeks. [2]
An emergency propulsion motor on the shaft line or a retractable 325-hp secondary propulsion motor power the submarine off the battery or diesel generator. The S6G reactor plant was originally designed to use the D1G-2 core, similar to the D2G reactor used on the guided missile cruiser USS Bainbridge .
The propulsion of the Balao-class submarines was generally similar to that of the preceding Gato-class. Like their predecessors, they were true diesel-electric submarines: their four diesel engines powered electrical generators, and electric motors drove the shafts. There was no direct connection between the main engines and the shafts.
The Type 212A is a class of diesel-electric attack submarine developed by Howaldtswerke-Deutsche Werft AG (HDW) for the German Navy (German: U-Boot-Klasse 212 A), and the Italian Navy where it is known as the Todaro class. [7]
B-39 was a Project 641 (Foxtrot-class) diesel-electric attack submarine of the Soviet Navy.The "B" (actually "Б") in her designation stands for большая (bolshaya, "large")—Foxtrots were the Soviet Navy's largest non-nuclear submarines.
The class used diesel-electric propulsion, with lead-acid batteries to provide power when the engines cannot be used. Each vessel has two Admiralty-pattern V-16 diesel engines (ASR1 16VMS), each driving one 1280-kW 880-V generator.
The full diesel-electric propulsion plant found in a few Sargos was continued, and probably improvements over the Porpoise class eliminated the arcing that had plagued those boats. The "new S-class" had boats with either General Motors - Winton engines or Hooven-Owens-Rentschler (HOR) engines.