Nummer: 25615a
| Area : | Mediterranean |
| Sea area : | Gibraltar Area |
| Date of attack : | 14.05.1944 |
| Time of attack : | 04:08 |
| Nationality of U-boat : | German |
| U-boat : | U 616 |
| Commander : | Koitschka |
| Grid : | CH 82 |
| presumed target type : | --- |
| presumed tonnage : | ---- --- |
| presumed result : | hit not ascertained |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | GUS.39 |
| Date of observation : | 14.05.1944 |
| Time of observation : | 02:30 |
| Nationality of target : | British |
| Actual type of target : | Motor Tanker |
| Name of target : | G.S. Walden |
| Year of launch : | 1935 |
| Actual tonnage : | 10627 BRT |
| Actual result : | damaged |
| Position of target : | 36.45n 00.55e |
| related attacks : | Angriff 1 |
| Convoy : | GUS.39 |
| Route of convoy : | Port Said - Gibraltar - Hampton Roads (USA) |
| Remark to convoy : | From Nov 1942 to June 1945 (counter traffic = UGS) |
| updated on: | 16.05.2014 |
| Remark: | ZEIT1, QUAD |
| Changes: | 0) GUS.39 = Port Said-Hampton 1) Kolbicz 2002 (E256): brit. (London) |