 The Wessex were replaced by Westland Sea King HAS.5s, converted to HAR.5s, in October 1987 as the Squadron assumed a long range, day/night and all weather SAR capability.In July 2001, 771 Squadron assumed the responsibility for Advanced and Operational Flying Training for anti-submarine warfare (ASW) pilots and Observers, as well as the residual Sea King HAS.5 & HAS.6 Pilot Conversion and Refresher Courses.In its final years the Squadron operated the Sea King HAR.5 in the grey and red colours, with nine permanently stationed at RNAS Culdrose.