Swiftsure class Royal Navy submarine S109 HMS SUPERB has not long departed her base at Faslane and is making her way up the River Clyde. She was built by Vickers at Barrow and commissioned in 1976.She grosses 4500 tons has five torpedo tubes and a compliment of 116.After an accident in the Red Sea she returend to Faslane and was decommissioned earlier than scheduled in Sep 2008.