{"id":27896,"date":"2026-05-12T15:21:26","date_gmt":"2026-05-12T23:21:26","guid":{"rendered":"https:\/\/www.eskimo.com\/~mighetto\/murrelet\/Wordpress\/?page_id=27896"},"modified":"2026-05-13T07:31:04","modified_gmt":"2026-05-13T15:31:04","slug":"submarine-u-1","status":"publish","type":"page","link":"https:\/\/www.eskimo.com\/~mighetto\/murrelet\/Wordpress\/sample-page\/submarine-u-1","title":{"rendered":"Submarine U-1"},"content":{"rendered":"\n

The U-1 in Munich is interesting because it is Germany\u2019s first government-commissioned submarine and the Deutsches Museum\u2019s major original submarine exhibit; it was built as an experimental vessel and later became a training boat before being preserved in Munich. Its design shows how early submarines worked in practice: a pressure hull inside a lighter outer hull, ballast tanks for diving and surfacing, horizontal diving planes for depth control, and movable internal weights for trimming.[1][2]<\/p>\n\n\n\n

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This is the Imperial German Navy U-1, launched in 1906 and commissioned in December 1906. Only one of this exact boat was built, and it is the submarine displayed in Munich.<\/figcaption><\/figure>\n\n\n\n
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Main features<\/h2>\n\n\n\n

Pressure hull and outer hull.<\/strong> The tubular pressure hull held the crew and machinery under sea pressure, while the thin outer hull gave the boat its shape and space for ballast tanks.[1]<\/p>\n\n\n\n

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Ballast tanks.<\/strong> These tanks filled with water to make the boat submerge and were blown empty to restore buoyancy and surface again.[1]<\/p>\n\n\n\n

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Diving planes.<\/strong> Forward and aft horizontal rudders controlled the boat\u2019s angle and helped it go up and down while underway.[1]<\/p>\n\n\n\n

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Trimming weights.<\/strong> Movable weights inside the pressure hull let the crew fine-tune balance and attitude in the water.[1]<\/p>\n\n\n\n

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Propulsion system.<\/strong> On the surface it used two K\u00f6rting heavy-oil\/kerosene engines; submerged it used two electric motors, which also acted as generators on the surface to charge batteries.[3][1]<\/p>\n\n\n\n

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Propellers.<\/strong> The ship used adjustable-pitch propellers because the kerosene engines could not be reversed and could not vary speed much.[3]<\/p>\n\n\n\n

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Torpedo armament.<\/strong> U-1 carried one torpedo ready to fire plus two reserve torpedoes, reflecting its early experimental and limited offensive role.[4][1]<\/p>\n\n\n\n

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Crew spaces.<\/strong> The crew was small, about 12 to 22 men, with very tight living conditions and shared berths; even the toilet was placed close to the torpedoes.[4][1]<\/p>\n\n\n\n

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Aboard U-1, crew conditions were extremely cramped, noisy, and primitive by modern standards. The boat carried a small crew, and everyone lived and worked in close quarters with very little privacy, limited fresh water, and no real comfort for long periods.[1][2]<\/p>\n\n\n\n

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Crew roles<\/h2>\n\n\n\n

Commander and officers.<\/strong> They handled navigation, tactical decisions, and overall boat management.[1]<\/p>\n\n\n\n

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Engine crew \/ machinists.<\/strong> They operated and maintained the surface engines, batteries, and machinery needed for propulsion and diving systems.[2][1]<\/p>\n\n\n\n

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Torpedo crew.<\/strong> They maintained the torpedo tube and the stored torpedoes, and they handled loading and firing.[3][1]<\/p>\n\n\n\n

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Seamen \/ deck hands.<\/strong> They stood watch, handled general maintenance, and assisted with routine tasks aboard the boat.[4]<\/p>\n\n\n\n

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Specialists.<\/strong> On later U-boats, roles like radioman, torpedoman, and machinist were distinct; U-1 was an early boat, so its division of labor was simpler, but the same functional needs were already present.[4][1]<\/p>\n\n\n\n

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Living conditions<\/h2>\n\n\n\n