Royal Air Force Bentwaters or more simply RAF Bentwaters, now known as Bentwaters Parks, is a former Royal Air Force station about northeast of London and east-northeast of Ipswich, near Woodbridge, Suffolk in England. Its name was taken from two cottages ('Bentwaters Cottages') that had stood on the site of the main runway during its construction in 1943. The station was used by the Royal Air Force (RAF) during the Second World War, and by the United States Air Force (USAF) during the Cold War, being the primary home for the 81st Fighter Wing under various designations from 1951 to 1993. For many years the 81st Fighter Wing also operated RAF Woodbridge, with Bentwaters and Woodbridge airfields being known by the Americans as the "Twin Bases". RAF Bentwaters was the location of an 13–14 August 1956 nighttime radar and visual sighting of multiple UFOs (the Lakenheath-Bentwaters incident); it is also near the location of the alleged December 1980 UFO incident in Rendlesham Forest. The site is now known as Bentwaters Parks. The Bentwaters Cold War Museum is located on the site, there are offices and warehouses, and the site is also used for television and film making. History Second World War Bentwaters airfield's origin dates to 1942 when construction began on a Royal Air Force station called Royal Air Force Butley for use by RAF Bomber Command. On 28 January 1943 the station was renamed Royal Air Force Bentwaters. It was opened for operational use in April 1944. In December it was transferred to No. 11 Group, RAF Fighter Command . During the Second World War, RAF squadrons at Bentwaters were: No. 64 Squadron RAF between 29 December 1944 and 15 August 1945 with North American Mustang III moved to RAF Horsham St Faith. No. 65 Squadron RAF between 15 May 1945 and 13 August 1945 with Mustang IV moved to RAF Fairwood Common. No. 118 Squadron RAF between 15 December 1944 and 11 August 1945 with re-equipped Mustang III moved to RAF Fairwood Common. No. 126 Squadron RAF between 30 December 1944 and 5 September 1945 with Mustang III then upgrading to Mustang IV in August 1945. No. 129 Squadron RAF between 11 December 1944 and 26 May 1945 with Mustang III, swapping to Supermarine Spitfire IXE in May 1945. No. 165 Squadron RAF between 15 December 1944 and 29 May 1945 with Mustang III until May 1945 then