HISTORY timeline 1961 – Original Construction by Vosper Ltd in Portchester UK1979 to 1989 – Major Restoration at Ocean Quay in Southampton UK2017 – 2020 – Major Refit at Trafalgar Shipyard in Portchester UK 1961Original construction based on the hull form and machinery layout of the Vosper 'Brave Class' Fast Patrol Boats 1979 to 1989Major restoration of hull, superstructure, electrical systems, navigation and machinery.Addition of the manoeuvring engines and bridge