RFA STIRLING CASTLE

13 / 5840gt.She was formerly ISLAND CROWN and has been converted to

an offshore operating base deploying Mine Countermeasures Maritime Autonomous

System ( MEMMAS ) with drones and crewless systems to neutralise sea mines and

 other seabed threats.She had been up in Lyme Bay and was now slow steaming 6 miles

 south of Heybrook Bay waiting to enter Plymouth in the afternoon.