Fastnet
| Name | Fastnet |
| Type | Fishing vessel |
| GRT | 31 tons |
| Country |  British |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Fishing vessel Fastnet
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 3 May 1917 | UC 75 (Johannes Lohs) | Sunk | 13 miles S of The Stags | 49° 57'N, 5° 07'W |
Position of attack on Fastnet
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