August
| Name | August |
| Type | Sailing vessel |
| GRT | 120 tons |
| Country |  Swedish |
| Built | 1876 |
| Builder | W.G. Bedewes, Mart??? |
| Operator | Ad. Elfving |
| History | Wooden ketch |
U-boat attacks on Sailing vessel August
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 11 Jun 1917 | UC 58 (Karl Vesper) | Sunk | 7 miles off the Unterstens Light | Ornö-Finland | Felspar | 0 |
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