| Name: | THROSK |
| Type: | Ammunition Transport |
| Keel: | 25/08/1976 |
| Launched: | 05/04/1977 |
| Completed: | 20/09/1977 |
| Builder: | Clelands Shipbuilders Ltd |
| Yard: | Willington Quay |
| Yard Number: | 337 |
| Dimensions: | 1358grt, 64.31 x 11.90 x 4.57(draft)metres |
| Engines: | 2 x Oil engines, 3000hp |
| Engines by: | Mirrlees-Blackstone, Stamford |
| Propulsion: | 1 x Screw, 14.0knots |
| Construction: | Steel |
| Armament: | None |
| History: | |
| 20/09/1977 | Royal Maritime Auxiliary Service |
| 1991 | Government of Ecuador; renamed CALICUCHIMA |
| No later history known | |
| Comments: | 1977: Allocated pennant number A379 |
Above photo as THROSK copyright of Peter Crichton
