Coastal Minelaying Submarines – 64 completed 1916-17: UC 16, UC 17, UC 18, UC 19, UC 20, UC 21, UC 22, UC 23, UC 24, UC 25, UC 26, UC 27, UC 28, UC 29, UC 30, UC 31, UC 32, UC 33, UC 34, UC 35, UC 36, UC 37, UC 38, UC 39, … Read more
Coastal Minelaying Submarines – 15 completed 1915: UC-1 to UC-15 The Type UC I coastal submarines were small minelaying models built in 1914-15, the first type of three that were part of the German all-out U-boat war. They were not the first operational minelaying submarines in the world, but the first class, with fifteen boats … Read more
Germany: Coastal Submersible, ex-Norwegian A5 SM UA was an Imperial German Navy U-Boat of World War I, 5th submarine in the Norwegian A class. She was launched 9 May 1914 but requisitioned by the German government after the started of the war on 5 August 1914. She was then put to German standards and recommissioned … Read more
Germany: SM U63 to U-65 (1916-17) The U63 class U-Boats were basically a repeat of the U51 mobilization boats by Germaniawerft in, Kiel. These were only three submersibles launched in February-March 1916 with a rounded prow, rewroked tail, separated deck and double hull, Germanierft diesels and two 8.8 cm guns, although this was changed later … Read more
Germany: SM U57 to U-62, 99 to 104 (1916-17) The Mobilisation U57 class U-Boats were the first incursion by A.G. Weser, Bremen, into the usual realm of Germaniawerft and Kaiserliches Werft shipyards. The need for more U-Boote was pressing and to bolster the numbers, a series of twelve submersibles were ordered, based on the U41 … Read more
Germany: SM U51 to U-56 (1915-16) The U51 class U-Boats were essentially a repeat of the U41, the last, modified boat of the U31 class by Germaniawerft. They were the first double-hull U-Boats of this type, part of the mobilization program and were internally called the Ms type. Six were built, laid down in the … Read more
Germany: SM U43 to U-50 (1914) The U43 class U-Boats were a brand-new type of submarines, not just a scaled up version of the previous U27 or U31 boats. The Project 25 U-Boats, were improved in many ways, not only in terms of range and diving time, while being also larger that previous boats, introducing … Read more
Germany: SM U27, 28, 29, 30 (1913) The U27 class submarine succeeded to the U23 double-hulled type, part of the “mittel-U” prewar super-class, or third U19 sub-class, all equipped with diesels. They originated indeed in Dantzig’s U19. The imperial shipyard (Kaiserliches Werft) at Kiel manufactured their own version of the MAN diesels under licence, and … Read more
Germany: SM U23, 24, 25, 25 (1912) The U23 class submarine were of the so-called double-hulled type, designed as oceanic models in official design documentation. They were also called the “mittel-U”, second class equipped with Diesels, and a copy of the U19 by Germaniawerft, from the large imperial shipyard of Kiel. The latter recovered the … Read more
Germany (1913-1919) U-31 to U-41, launched/commissioned 1914-15 The U31 class were a continuation of previous diesel boats, a serie started with U19 and continued with the U23 and U27 classes, made by either Germaniawerft or Kaiserliche Werft Danzig. This was the same basic design, incrementally improved, increased in size and tonnage and becoming the standard … Read more
