U-Boat Operations

U-75	Type VIIB
Feldpost Number	M 16 800
Construction Yard	Vulkan Vegesack Werft, Bremen
Yard Number	3
Ordered	2nd Jun 1938
Keel laid	15th Dec 1939
Launched	18th Oct 1940
Commissioned	19th Dec 1940
Baubelehrung	Baubelehrung U-Boote Nordsee, Bremen
Training, Flotillas and Duties
12.40 - 10.41	7.U-Flottille, Kiel & St.Nazaire Ausbildungsboot (under training) Frontboot (operational)
10.41 - 12.41	23.U-Flottille, Salamis Frontboot (operational)
Commanders
12.40 - 12.41	KL Helmuth Ringelmann

Operations information for U-75
10.04.1941 - 12.05.1941 First Sailing - active patrol U-75 left Kiel under the command of Helmuth Ringelmann on 10th Apr 1941 and arrived at return on 12th May 1941 after four and a half weeks. Helmuth Ringelmann hit one ship on this patrol. On 29th Apr 1941 he sank the British 10,146 ton City of Nagpur.
29.05.1941 - 03.07.1941 Second Sailing - active patrol On the 29th May 1941, U-75 left St. Nazaire under the command of Helmuth Ringelmann and after five weeks arrived at return on 3rd Jul 1941. Helmuth Ringelmann hit three ships on this patrol and all of them were in convoy: two were from convoy OB-327 and one was from convoy OB-336. On 3rd Jun 1941 he sank the Dutch 4,801 ton Eibergen, sailing with convoy OB-327. On 3rd Jun 1941 he sank the British 9,456 ton Inversuir, a member of convoy OB-327. On 25th Jun 1941 he sank the Dutch 1,967 ton Schie, part of convoy OB-336.
29.07.1941 - 25.08.1941 Third Sailing - active patrol U-75 departed under Helmuth Ringelmann from St. Nazaire on 29th Jul 1941 and arrived at return on 25th Aug 1941 after nearly four weeks. Helmuth Ringelmann hit two ships on this patrol and both of them were in convoy, both of them were from convoy SL-81. On 5th Aug 1941 he sank the British 4,512 ton Cape Rodney, from convoy SL-81. On 5th Aug 1941 he sank the British 5,415 ton Harlingen, sailing with convoy SL-81.
27.09.1941 - 02.11.1941 Fourth Sailing - active patrol U-75 left St. Nazaire under the command of Helmuth Ringelmann on 27th Sep 1941 and after just over five weeks arrived at return on 2nd Nov 1941. Helmuth Ringelmann hit two ships on this patrol. On 12th Oct 1941 he sank the British 372 ton HMS LCT-2. On 12th Oct 1941 he sank the British 372 ton HMS LCT-7.
22.12.1941 - 28.12.1941 Fifth Sailing On the 22nd Dec 1941, U-75 left Salamis under the command of Helmuth Ringelmann and arrived at return on 28th Dec 1941 after six days. Helmuth Ringelmann hit one ship on this patrol. On 28th Dec 1941 he sank the British 1,587 ton Volo.

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