Nummer: 18117
| Area : | Western Area |
| Sea area : | English Channel |
| Date of attack : | 15.06.1944 |
| Time of attack : | 08:03 |
| Nationality of U-boat : | German |
| U-boat : | U 621 |
| Commander : | Stuckmann |
| Grid : | BF 3615 |
| presumed target type : | Landing Ship Tank |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Acoustic homing torpedo (gnat) |
| Convoy : | EPL.8 |
| Date of observation : | 15.06.1944 |
| Time of observation : | 08:16 |
| Nationality of target : | American |
| Actual type of target : | Landing Ship |
| Name of target : | LST 133 |
| Year of launch : | 1943 |
| Actual tonnage : | 1780 ts |
| Actual result : | damaged |
| Position of target : | 50.01n 00.49w |
| Footnote : | The damage to (formerly posted) LST.280 occurred several hours before U-621 carried out its attack. Officially LST.133 was damaged by acoustic mine. |
| Convoy : | EPL.8 |
| Route of convoy : | Portland - France |
| Remark to convoy : | Series of invasion convoys for Op. Neptune (Jul-Sep 1944) |
| Beitrag im ASS-Forum : Link | |
LST.133 Action Report 15-June-1944 | |
LST.133 (mit Abbildung) |
| updated on: | 18.06.2013 |
| Remark: | LST.133 |
| Changes: | 1) Kolbicz (2002) - E181: LST.280 = 1490 ts 2) Kolbicz, 18.06.2013: ASS-Forum 3) navsource.org (2013): LST.133 = 1780 ts 4) EPL=England/Portland/Landingvessels |