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| 1976-jul-6 | Launched |  A131 RFA Reliant as mv Astronomer | |
| 1982-may-31 | Refit | A131 RFA Reliant  single 20 mm taken up from trade as mv Astronomer and entered rapid refit to provide helicopter support facilities, until 7 Jun 1982. | |
| 1982-jun-8 | Deployment | A131 RFA Reliant departed Plymouth for South Atlantic with replacement / garrison Wessex, Chinook and Scout aboard. Arrived after Operation Corporate had concluded. Returned to Plymouth Sound 2 Dec 1982 | |
| 1982-jun-27 | Deployment | A131 RFA Reliant Arrived at Port William anchorage with further Wessex HU.5 after cessation of hostilities and relieved RFA Engadine as a helicopter support centre on 2 Jul. Relocated near Port San Carlos in Aug 1982. | |
| 1982-dec | Refit | A131 RFA Reliant at Cammell Laird to fit Arapaho helicopter support modules | |
| 1983-nov-16 | Commissioned | A131 RFA Reliant as RFA Reliant after a years lease | |
| 1984-jan-11 | Deployment | A131 RFA Reliant  Operation Offcut stood off Beirut, with a detachment of three 846 NAS Sea Kings embarked, including ZA291 / VB. Evacuated British troops and c 5000 nationals, starting on 8 Feb 1984 and disembarked civilians and part of BRITFORLEB in Cyprus. | |
| 1984-nov | Deployment | A131 RFA Reliant Deployed to South Atlantic to guard the Falkland Island Protection Zone. 826 NAS detachments embarked. | |
| 1986-may-25 | Decommissioned | A131 RFA Reliant | |
| 1998 | Fate: scrapped | A131 RFA Reliant Scrapped in India | |
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Stocznia Gdanska - 
