Torpediniere 5 Pn
| Name | Torpediniere 5 Pn |
| Type | Torpedo boat |
| GRT | 120 tons |
| Country |  Italian |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Torpedo boat Torpediniere 5 Pn
| Date | U-boat | Route | Cargo | Loss type | |
| 1 | 26 Jun, 1915 | UB 1 (Franz Wäger) | Sunk | ||
| Casualties | Position | Location | Notes | ||
| 0 | , | Gulf of Venice | While still under German command during trials; the submarine later became the Austrian U 10. | ||
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