The Miles M.30 X Minor, U-0233, was a one-off, small scale prototype first flown in February 1942 to test the blended wing/fuselage four- and six-engined airliner concepts drawn up by F. G. Miles in the late 1930s. The M.30 ended its relatively brief career as an instructional airframe with the Miles Aeronautical Technical school. Shown inset is the 50 passenger Miles X II project of 1943. Performance estimates indicated the X II would cruise at 350mph and have a range of 3,450 miles with a full passenger complement. With Miles always considered something of an industry outsider, the X II proposal was spurned by officialdom in favour of what was to become the Bristol Britannia.