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 Tealing Advanced Flying Unit (PAFU) based at RAF Errol. Satellite to RAF Inverness RAF Tealing RAF Tealing (aka Tealing Airfield) is a former Royal Air Force station During the Second World War, the Air Ministry built an aerodrome at Tealing and in March 1942 No. 56 Operational Training Unit (OTU) was relocated to RAF Tealing from RAF Sutton Bridge in south Lincolnshire, equipped with Hawker Hurricane, Miles Master and Westland Lysander aircraft. The number of pilots training at the unit varied from about 35 to 40 in 1942, reaching a peak of 150 on 1943. It was at the aerodrome that