Seen some 51 years after my first photo here, this Kestrel was flown for two years from 1964 as XS688 by pilots from the UK, USA and West Germany in the Tripartite Evaluation Squadron (TES) at RAF West Raynham. Six of these trial aircraft then came to the US where the US armed forces conducted additional testing designated as XV-6As. Although the USAF did not order it, the US Marine Corps and RAF did of course operate the follow-on Harrier for several decades. In 1970 64-18262 became the first aircraft to be airlifted in a C-5 Galaxy when it was flown from Edwards to the USAFM