XD816
XD816 went from 214 Sqd Marham (underwing tanks removed prior to transit flight at Marham) to Wisley 18 August 1964 for trial installation of rear spar repair scheme under KD/P/198/CB.5(c). Loaned to BAC Wisley 21 September 1964, At Wisley from 1 April 1965 - 26 November 1965 for re-spar & flight trials at that time had completed 2,012.05 flying hours & 829 landings. On 29 June 1967 passed to control of BAC (Operating) Ltd for fatigue flight trials, MOD loaned aircraft for display at Abingdon 23 April 1968, finally SOC 26 August 1970. Hope fills in the gaps, PH