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- Projekt ASS: U-Boot-Erfolge der Achsenmächte 1939-1945
- Übersicht > ID 2950
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 29.12.1942 |
| Time of attack : | 23:56 |
| Nationality of U-boat : | German |
| U-boat : | U 631 |
| Commander : | Krüger |
| Grid : | AL 2357 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 4000 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | ONS.156s |
| Date of observation : | 30.12.1942 |
| Nationality of target : | Norwegian |
| Actual type of target : | Steam Freighter |
| Name of target : | Ingerfem |
| Year of launch : | 1912 |
| Actual tonnage : | 3978 BRT |
| Actual result : | sunk |
| Position of target : | 59n 21w |
| Footnote : | "Ingerfem" was without any doubt straggler of convoy ON.156. |
| Convoy : | ONS.156s |
| Route of convoy : | United Kingdom - North America |
| Remark to convoy : | 1st series: Jul 1941 to Mar 1943 ON and ONS combined, later ON mit continuing and ONS with new numbering (counter traffic HX and SC) |
| updated on: | 00.00.2002 |
| Remark: | ON.156s, 3978grt |
