Nummer: 15405b
| Area : | Western Area |
| Sea area : | North Atlantic |
| Nationality of U-boat : | German |
| U-boat : | U 633 ? |
| Commander : | Müller |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | SC.121 r |
| Date of sinking : | 08.03.1943 |
| Time of sinking : | 08:55 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Guido |
| Year of launch : | 1920 |
| Actual tonnage : | 3921 BRT |
| Actual result : | sunk |
| Position of target : | 58.21n 31.08w |
| Footnote : | "Guido" was a romper 10sm off the starboard bow of convoy SC.121. - There is no attack report, but possibly "Guido" was sunk by U-633 (lost 10.3.), as neither survivors of U-432 nor survivors of U-526 ever claimed a success for that date. |
| related attacks : | Angriff 1 |
| Convoy : | SC.121 r |
| Route of convoy : | Sydney (Nova Scotia) - United Kingdom |
| Remark to convoy : | Slow (Atlantic) Convoys since Aug 1940, fast ones = HX, counter traffic = ON. |
| updated on: | 22.03.2006 |
| Remark: | U633, Verlustpos. |
| Changes: | 1) Kolbicz, 18.07.02: Angreifer wahrsch. U633 (+ 10/1025 in AK 2678) 2) Niestlé, 22.03.06: Die GUIDO-Verlustposition 58.08n 32.20w [nach BR.1367] ist sicherlich zu weit westlich. Die im Escort-Bericht genannte Position 58.21n 31.08w [= AK 2684] bzw. von USCGC "Spencer" angegebene Position 58.19n 31.23w [= AK 2676] passt wesentlich besser. |