Delta B
| Name | Delta B |
| Type | Trawler |
| GRT | 220 tons |
| Country |  Belgian |
| Built | 1908 |
| Builder | Cochrane & Sons, Selby |
| Operator | Soc. Anon “Delta”, Ostende |
| History | Or simply Delta. Belgian fishing vessel operating out of Milford from October 1914 on. |
U-boat attacks on Trawler Delta B
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 2 Jun 1915 | U 34 (Claus Rücker) | Sunk | Stopped and sunk by gunnery 12 miles SSW of Scilly | 49.40N, 06.30W | 0 |
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