| Navy | The Royal Navy |
| Type | MS Trawler |
| Class | Mersey |
| Pennant | T 04 |
| Built by | Cochrane & Sons Shipbuilders Ltd. (Selby, U.K.) |
| Ordered | |
| Laid down | |
| Launched | Jul 1918 |
| Commissioned | 30 Oct 1918 |
| End service | |
| Loss position | |
| History | Sold in 1946. |
We don't have any commands listed for HMS Blackwater (T 04)
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