re-formed in May 2020 as the OEU for JHC. The large twin-rotor Boeing Chinook is the RAF's heavy-lift support helicopter. Originally ordered in 1978, with subsequent orders in 1995, 2011, and 2018 (yet to be finalised), the Chinook is operated by No. 7 Squadron, No. 18(B) Squadron and No. 27 Squadron at RAF Odiham and No. 28 Squadron (Support Helicopter OCU) at RAF Benson. Since being first delivered in 1980, the Chinook has been involved in numerous operations: the Falklands War (1982); Operation Granby (1991); Operation Engadine (1999); Operation Barras (2000); Operation Herrick (2002–2014); Operation Telic (2003–2011); Operation Ruman (2017); and Operation Newcombe (2018–present). The 60-strong fleet of Chinooks currently has an OSD in the 2040s. The Westland Puma HC2 is the RAF's Medium-lift support helicopter. It is operated by No. 33 Squadron and No. 230 Squadron, as well as by No. 28 Squadron (Support Helicopter OCU), all of which are based at RAF Benson. The first two Puma HC1s (XW198 and XW199), of an eventual forty-eight, were delivered in January 1971, which were supplemented by a captured Argentine Army SA 330J in 2001 and six ex-South African Air Force SA 330Ls in 2002. Twenty-four Puma HC1s underwent upgrades to HC2 standard between 2012 and 2014. The Puma HC2 OSD is currently March 2025. Three Bell Griffin HAR2 are operated by No. 84 Squadron based at RAF Akrotiri in the Cyprus Sovereign Base Areas. They are the RAF's only dedicated search and rescue helicopter since the disbandment of the RAF Search and Rescue Force in February 2016. However, all UK military helicopter aircrew routinely train and practise the skills necessary for search and rescue, and the support helicopters based in the UK are available to the Government under Military Aid to the Civil Authorities. The AgustaWestland AW109 Grand New of No. 32 (The Royal) Squadron based at RAF Northolt provides the VIP transport Command Support Air Transport role. Training aircraft The UK's military flying training has been privatised through a public-private partnership, known as the UK Military Flying Training System (UKMFTS). Training is provided by Ascent Flight Training, a consortium of Lockheed Martin and Babcock International. New aircraft were procured to reduce the training gap between the older generation Grob Tutor T1, Short Tucano T1 and Beechcraft King Air T1 aircraft, and the RAF's modern front-line aircraft, including advanced systems and glass cockpits. UKMFTS also relies far more on synthetic