
Ernst Mengersen
Korvettenkapitän (Crew 33)
| Successes 12 ships sunk for a total of 68.071 GRT 1 warship sunk for a total of 1.190 tons 3 ships damaged for a total of 20.159 GRT |
| Born | 30 Jun, 1912 | Bremke, Lippe |
| Died | 6 Nov, 1995 |
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Ranks
Decorations
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U-boat Commands
| U-18 | 24 Nov, 1939 | - | 2 Sep, 1940 | 2 patrols (33 days) |
| U-143 | 18 Sep, 1940 | - | 2 Nov, 1940 | No war patrols |
| U-101 | 18 Nov, 1940 | - | 31 Dec, 1941 | 6 patrols (186 days) |
| U-607 | 29 Jan, 1942 | - | 18 Apr, 1943 | 3 patrols (148 days) |
Personal information
Ernst Mengersen began his naval career in 1933 and served on the cruiser Admiral Scheer and on the torpedo boat Tiger.
In April 1939 he transferred to the U-boat force and then spent nearly four years on board various U-boats. In June 1943 he became the commander of the 20th Flotilla in Pillau. During the last three months of the war he was in the 25th Flotilla, and in April 1945 he was chosen as the commander of the new 15th Flotilla.
Ernst Mengersen

Kapitänleutnant Mengersen among the crew of U-101 after patrol in December 1940.
Patrol info
| U-boat | Departure | Arrival | |||||
| 1. | U-18 | 8 Jan, 1940 | Kiel | 26 Jan, 1940 | Wilhelmshaven | Patrol | 19 days |
| 2. | U-18 | 11 Feb, 1940 | Wilhelmshaven | 24 Feb, 1940 | Wilhelmshaven | Patrol | 14 days |
| 3. | U-101 | 24 Nov, 1940 | Lorient | 7 Dec, 1940 | Lorient | Patrol | 14 days |
| 4. | U-101 | 23 Jan, 1941 | Lorient | 19 Feb, 1941 | Lorient | Patrol | 28 days |
| 5. | U-101 | 24 Mar, 1941 | Lorient | 2 May, 1941 | Lorient | Patrol | 40 days |
| 6. | U-101 | 28 May, 1941 | Lorient | 4 Jul, 1941 | Lorient | Patrol | 38 days |
| 7. | U-101 | 7 Aug, 1941 | Lorient | 4 Sep, 1941 | St. Nazaire | Patrol | 29 days |
| 8. | U-101 | 4 Oct, 1941 | St. Nazaire | 6 Oct, 1941 | St. Nazaire | 3 days | |
| 9. | U-101 | 11 Oct, 1941 | St. Nazaire | 16 Nov, 1941 | Kiel | Patrol | 37 days |
| 10. | U-607 | 9 Jul, 1942 | Kiel | 10 Jul, 1942 | Kristiansand | 2 days | |
| 11. | U-607 | 13 Jul, 1942 | Kristiansand | 16 Aug, 1942 | St. Nazaire | Patrol | 35 days |
| 12. | U-607 | 8 Sep, 1942 | St. Nazaire | 23 Oct, 1942 | St. Nazaire | Patrol | 46 days |
| 13. | U-607 | 2 Jan, 1943 | St. Nazaire | 9 Mar, 1943 | St. Nazaire | Patrol | 67 days |
Ships hit by Ernst Mengersen
| Date | Boat | Name of ship | Tons | Nat. | Convoy | Fate * | |
| 23 Jan, 1940 | U-18 | Bisp | 1.000 | | nw | ||
| 30 Nov, 1940 | U-101 | Aracataca | 5.378 | | br | ||
| 1 Dec, 1940 | U-101 | Appalachee | 8.826 | | br | HX-90 | |
| 1 Dec, 1940 | U-101 | Loch Ranza | 4.958 | | br | HX-90 | damaged |
| 2 Dec, 1940 | U-101 | Kavak | 2.782 | | br | HX-90 | |
| 2 Dec, 1940 | U-101 | Lady Glanely | 5.497 | | br | HX-90 | |
| 14 Feb, 1941 | U-101 | Holystone | 5.462 | | br | OB-284 | |
| 17 Feb, 1941 | U-101 | Gairsoppa | 5.237 | | br | SL-64 | |
| 4 Jun, 1941 | U-101 | Trecarrell | 5.271 | | br | OB-327 | |
| 9 Jun, 1941 | U-101 | Trevarrack | 5.270 | | br | OB-329 | |
| 18 Oct, 1941 | U-101 | HMS Broadwater (H 81) | 1.190 | | br | SC-48 | |
| 26 Jul, 1942 | U-607 | Empire Rainbow | 6.942 | | br | ON-113 | damaged |
| 4 Aug, 1942 | U-607 | Belgian Soldier | 7.167 | | be | ON-115 | |
| 14 Oct, 1942 | U-607 | Nellie | 4.826 | | gr | SC-104 | |
| 26 Jan, 1943 | U-607 | Kollbjørg | 8.259 | | nw | HX-223 | damaged |
| 15 Feb, 1943 | U-607 | Atlantic Sun | 11.355 | | am | ON-165 | |
| 89.420 | |||||||
* Unless otherwise noted the ships listed here were sunk. | |||||||
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Books dealing with this subject include: |
Decorations and ranks information is in many cases not complete. If you can help on any of those missing that would be great.

