| Operations information for U-406 |
04.04.1942 - 19.04.1942 First Sailing - active patrol
U-406 left Kiel under the command of Horst Dieterichs on 4th Apr 1942 and arrived at St. Nazaire on 19th Apr 1942 after just over two weeks.
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05.05.1942 - 01.07.1942 Second Sailing - active patrol
On the 5th May 1942, U-406 left St. Nazaire under the command of Horst Dieterichs and returned to St. Nazaire on 1st Jul 1942 after just over eight weeks on patrol.
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09.08.1942 - 08.10.1942 Third Sailing - active patrol
U-406 departed under Horst Dieterichs from St. Nazaire on 9th Aug 1942 and arrived back at St. Nazaire on 8th Oct 1942 after eight and a half weeks on patrol.
Horst Dieterichs hit one ship on this patrol from convoy SL-118.-
On 19th Aug 1942 he sank the British 7,452 ton City of Manila, sailing with convoy SL-118.
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14.12.1942 - 12.01.1943 Fourth Sailing - active patrol
U-406 left St. Nazaire under the command of Horst Dieterichs on 14th Dec 1942 and returned just over four weeks later to St. Nazaire on 12th Jan 1943.
Horst Dieterichs hit three ships on this patrol and all of them were in convoy, all of them from convoy ONS-154.-
On 28th Dec 1942 he damaged the British 3,385 ton Baron Cochrane, a member of convoy ONS-154.
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On 28th Dec 1942 he damaged the British 4,871 ton Zarian, part of convoy ONS-154.
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On 28th Dec 1942 he damaged the British 5,029 ton Lynton Grange, from convoy ONS-154.
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22.02.1943 - 30.03.1943 Fifth Sailing - active patrol
On the 22nd Feb 1943, U-406 left St. Nazaire under the command of Horst Dieterichs and arrived at Bordeaux on 30th Mar 1943 after just over five weeks.
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25.04.1943 - 11.05.1943 Sixth Sailing - active patrol
U-406 departed under Horst Dieterichs from Bordeaux on 25th Apr 1943 and after over two weeks arrived at St. Nazaire on 11th May 1943. At 0200 HRS on 29th Apr 1943 in square BF 72, U-406 came under attack from an unidentified aircraft. U-406 was not damaged by the attack.
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26.06.1943 - 15.09.1943 Seventh Sailing - active patrol
U-406 left St. Nazaire under the command of Horst Dieterichs on 26th Jun 1943 and arrived back at St. Nazaire on 15th Sep 1943 after eleven and a half weeks on patrol.
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20.12.1943 - 22.12.1943 Eighth Sailing - active patrol
On the 20th Dec 1943, U-406 left St. Nazaire under the command of Horst Dieterichs and returned two days later to St. Nazaire on 22nd Dec 1943.
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25.12.1943 - 27.12.1943 Ninth Sailing - active patrol
U-406 departed under Horst Dieterichs from St. Nazaire on 25th Dec 1943 and arrived back at St. Nazaire two days later on 27th Dec 1943.
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29.12.1943 - 31.12.1943 Tenth Sailing - active patrol
U-406 left St. Nazaire under the command of Horst Dieterichs on 29th Dec 1943 and returned to St. Nazaire on 31st Dec 1943 after two days on patrol.
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05.01.1944 - 18.02.1944 Eleventh Sailing - active patrol
On the 5th Jan 1944, U-406 left St. Nazaire under the command of Horst Dieterichs. U-406 was sunk on 18th Feb 1944.
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