Royal Air Force Feltwell or more simply RAF Feltwell is a Royal Air Force station in Norfolk, East Anglia that is used by the United States Air Forces in Europe – Air Forces Africa. The station is located about 10 miles west of Thetford, and is in the borough of King's Lynn and West Norfolk at approximate Ordnance Survey grid reference . A former Second World War bomber station, the airfield is used as a housing estate for United States Air Force personnel stationed nearby at RAF Mildenhall. History Royal Air Force use The airfield was built during the period of expansion of the RAF in the late 1930s and is similar in layout to many of the other RAF airfields of the period (for example RAF Marham, RAF Watton and RAF West Raynham). The airfield was home to a number of heavy bomber squadrons of the RAF during the Second World War. Post war RAF Thor Missiles were stationed here 1958–1963. After the departure of the Thor missiles in 1963, the RAF's Officer Cadet Training Unit was based on the station, transferring from RAF Jurby, Isle of Man, in September 1963. United States Air Force use From 1989 it also hosted the US Air Force's 5th Space Surveillance Squadron (5 SPSS) which was subordinate to the 21st Operations Group (21 OG) and the 21st Space Wing (21 SW), both at Peterson AFB, Colorado. These organisations in turn are subordinate to the 14th Air Force (14 AF) at Vandenberg AFB, California which reports to HQ Air Force Space Command (AFSPC), also at Peterson AFB, CO. The 5 SPSS was part of the USAF's Passive Space Surveillance Network which tracked the physical location of emitting satellites in orbit. This data along with that from other systems was used to adjust the orbits of various satellites and manned vessels (for instance the Space Shuttle and the International Space Station) to reduce the risk of on-orbit collisions. It was deactivated in 2003 and the activity transferred to Misawa Air Base in Japan. The base is used as a housing estate for United States Air Force personnel stationed nearby at RAF Mildenhall and RAF Lakenheath with new housing built in 2011. Earlier it was used for USAF unaccompanied airmen in barracks located on base, while also containing the Mathies Airman Leadership School for USAF personnel in the UK, as well as being the home