Nummer: 13520a
| Area : | Western Area |
| Sea area : | West African Coast |
| Date of attack : | 11.11.1942 |
| Time of attack : | 19:48 |
| Nationality of U-boat : | German |
| U-boat : | U 173 |
| Commander : | Schweichel |
| Grid : | DJ 2519 |
| presumed target type : | Steam Freighter |
| presumed result : | damaged |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | UGF.1 |
| Date of observation : | 11.11.1942 |
| Time of observation : | 19:48 |
| Nationality of target : | American |
| Actual type of target : | Troop Transport |
| Name of target : | Joseph Hewes (AP.50) |
| Year of launch : | 1930 |
| Actual tonnage : | 9359 BRT |
| Actual result : | sunk |
| Position of target : | 35.10n 04.00w |
| Footnote : | U-173 heard three detonations and assumed one hit. No optical observations were made because of ASW operations. |
| related attacks : | Angriff 1 Angriff 2 |
Troop Transport Joseph Hewes (AP.50) ex American Excalibur (bis 1942)
| Convoy : | UGF.1 |
| Route of convoy : | U.S.A. - Gibraltar (fast) |
| Remark to convoy : | Since Oct 1942, initially for Op. Torch, then to ports in Northwest-Africa |