Royal Air Force and replacement by the F-35, the RAF Lossiemouth-based 15 (Reserve) Squadron (the Tornado Operational Conversion Unit) was disbanded in March 2017. Lightning: On 23 November 2015 it was announced that a total of 138 F-35Bs will be ordered. 617 (The Dambusters) Squadron officially reformed on 18 April 2018 as an RAF Lightning Squadron. The first four aircraft arrived at RAF Marham on 7 June 2018. The Sentry AEW1, based at RAF Waddington, provides airborne early warning to detect incoming enemy aircraft and to co-ordinate the aerial battlefield. The Sentinel R1 (formally known as ASTOR – Airborne STand-Off Radar) provides a
RAF Andover viable long-range electronic navigation system, of a kind that is today used routinely worldwide. Between the wars, the airfield housed a number of RAF units, including from 1919 the RAF School of Navigation, as No. 2 School of Navigation and Bomb Dropping was retitled. The RAF Staff College was founded here on 1 April 1922, to provide staff training to selected officers, and eventually moved to the Bracknell in 1970. The formation of the Royal Air Forces Association followed a conversation in 1929 in the Sergeants’ Mess of RAF Andover. RAF Andover continued to be used for a variety of