Ml 540
| Name | Ml 540 |
| Type | Motor launch |
| GRT | 37 tons |
| Country |  British |
| Built | 1916 |
| Builder | Elco, Bayonne, New Jersey |
| Operator | Royal Navy |
| History |
U-boat attacks on Motor launch Ml 540
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 8 Jun 1917 | U 39 (Walter Forstmann) | Sunk | 80 miles WNW of Cape Spartel | 0 | |||
| lost on Hunstrick | ||||||||
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