| Navy | The Royal Navy |
| Type | Rescue Tug |
| Class | Assurance |
| Pennant | W 142 |
| Built by | Cochrane & Sons Shipbuilders Ltd. (Selby, U.K.) |
| Ordered | |
| Laid down | 23 Feb 1943 |
| Launched | 4 Jun 1943 |
| Commissioned | 5 Oct 1943 |
| End service | |
| History | Sold in to mercantile service and renamed Irving Tamarack in September 1958. |
We don't have any commands listed for HMS Assiduous (W 142)
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