 On the evening of September 8, 1970, an object was spotted over the North Sea by radar and he was on duty so he took off to follow the object.His callsign was 'Foxtrot 94'.The object was then tracked by the early warning station at RAF Fylingdales and by the USAF radar station at Thule Air Base in Greenland and the Cheyenne Mountain Complex radar base in Colorado Springs, Colorado, USA.