HMS Hermes
| Name | HMS Hermes |
| Type | Seaplane carrier |
| GRT | 5,600 tons |
| Country |  British |
| Built | 1898 |
| Builder | Fairfield SB. & Eng. Co., Ltd., Glasgow |
| Operator | Royal Navy |
| History | Second class cruiser modified to accommodate seaplanes. |
U-boat attacks on Seaplane carrier Hermes
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 31 Oct 1914 | U 27 (Bernd Wegener) | Sunk | 8 miles WNW of Calais | 22 |
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