Nummer: 16420c
| Area : | Western Area |
| Sea area : | West African Coast |
| Date of attack : | 01.05.1943 |
| Time of attack : | 05:40 |
| Nationality of U-boat : | German |
| U-boat : | U 515 |
| Commander : | Henke |
| Grid : | ET 6128 |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 7000 BRT |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | TS.37 |
| Date of observation : | 01.05.1943 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | City of Singapore |
| Year of launch : | 1923 |
| Actual tonnage : | 6555 BRT |
| Actual result : | sunk |
| Position of target : | 07.55n 14.16w |
| Footnote : | U-515 hit a freighter after 1:08 min that burnt fiercely, a freighter after 1:05 min that burned and a freighter after 35 sec, which began to sink by the stern. "Mokambo" was towed to Freetown roads, but sank on May 2nd. |
| related attacks : | Angriff 1 Angriff 2 |
| Convoy : | TS.37 |
| Route of convoy : | Tokoradi - Sierra Leone |
| Remark to convoy : | Since Aug 1942, former LS. |