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
No. 238 Squadron RAF No. 238 Squadron RAF No. 238 Squadron was a squadron of the Royal Air Force. It was first formed in 1918 by combining number 347, 348 and 349 Flights at RAF Cattewater by the Royal Flying Corps during the First World War. It was reformed for the Second World War, the Berlin Airlift and currently is a Line Training Flight (LTF) squadron based at RAF Cosford, albeit in a non-flying capacity. The squadron was formed at RAF Cattewater (later RAF Mount Batten) in August 1918 by combining number 347, 348 and 349 Flights into the one squadron. All were flying