Sunbeam
| Name | Sunbeam |
| Type | Sailing vessel |
| GRT | 132 tons |
| Country |  British |
| Built | 1878 |
| Builder | Massey, Portreath, Cornwall |
| Operator | William B. Firth, Chester |
| History | Wooden three-masted schooner. |
U-boat attacks on Sailing vessel Sunbeam
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 Jul 1915 | U 25 (Otto Wünsche) | Sunk | Stopped and sunk by gunnery 16 miles E of Wick | Leith - Kirkwall | coal | 0 |
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