Bremen (submarine)
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The Bremen was a German merchant submarine . She was delivered from the Germania shipyard in July 1916 . Like its sister ship , the Deutschland , it was supposed to fetch strategically important cargo from the United States for the German Empire . The Bremen left the port of Kiel on August 21, 1916 and was lost.
Commercial submarine Bremen
After delivery was Bremen the U-151 class on 8 July 1916, the German ocean shipping company passed (DOR) and the ship's registry of Bremen entered. The godmother was the wife of the Bremen mayor Carl Georg Barkhausen . Karl Schwartz head, a projection formed on submarines reserve officer of the Navy , was the captain. He had been released from active service before the Bremen takeover . Walter Dähn was responsible for the machinery. The cargo consisted of about 750 tons of aniline paints and medicines . The latter included an anti- polio drug that was already expected in the United States.
The Bremen left the port of Kiel on August 21, 1916 and, after picking up the cargo in Bremen and calling at the port of Heligoland, began her voyage across the Atlantic . The destination was New London in the US state of Connecticut. The last radio message from the Bremen was a short signal that contained the message that the submarine was approaching the waters around Orkney . After that, and even after the end of the war, there were no more reports of speculation about the whereabouts of the submarine. The Bremen has been considered lost ever since.
technology
The Bremen was a two-hulled boat with a pressure hull measuring up to 5.8 m in diameter. The outer shell was up to 8.9 m wide, the boat a total of 65 m long and 9.25 m high. When traveling above the water and with a maximum displacement of 1575 t, it was 5.3 m deep in the water. The 791 was powered BRT presumptuous boat by two 6-cylinder four-stroke - diesel , which were not reversible. The Bremen could therefore only maneuver with its two electric motors, which had an output of 800 hp and were also needed for underwater travel. A top speed of up to 10 knots was possible over water, 6.7 knots under water. The fuel supply of 200 tons of oil gave the boat a range of 12,000 nm at maximum speed.
background
The Bremen-based wholesale merchant Alfred Lohmann (Lohmann & Co), the shipping company Norddeutscher Lloyd (NDL) and the Deutsche Bank planned the construction of commercial submarines after the British naval blockade in the North Sea . This was to be used to transport strategically important cargo across the Atlantic. Therefore, the DOR was founded on November 8, 1915 in Bremen. Six commercial submarines were planned by the Germania shipyard according to the designs of Hans Techel and Rudolf Erbach without armament. Only two, the sister ships Germany and Bremen , were completed as merchant ships and went into service. There is no trace of Bremen . The other six submarines of the class were delivered directly to the Imperial Navy as U-cruisers , which Germany later rebuilt.
literature
- Gröner, Erich / Dieter Jung / Martin Maass: The German warships 1815-1945 . tape 3 : U-boats, auxiliary cruisers, mine ships, net layers and barrier breakers . Bernard & Graefe Verlag, Bonn 1985, ISBN 3-7637-4802-4 , pp. 47-48 .
- Bodo Herzog: German U-Boats 1906–1966 . Karl-Müller, Erlangen 1999, ISBN 3-86070-036-7 .
- Hartmut Schwerdtfeger and Erik Herlyn: The merchant submarines “Deutschland” and “Bremen”. Kurz-Schönholz and Ziesemer Verlag, Bremen 1997, ISBN 3-931148-99-8 , p. 113 ff.
Web links
- Bremen , commercial submarines