Apparently one of two operated by the 227th Special Operations Flight at McGuire. This aircraft has a interesting and rather vague history of registrations and operators. Caught landing at Mildenhall for a very quick turn around before departing.
This was the very first UK production single-seater. The airframe was held back by BAe for ground tests and has only just been delivered to Coningsby. Aircraft has gained 29(R) markings despite operating with 11 Sqn.