Scottish Aviation Twin Pioneer Cutaway , STOL twin engine aircraft of British manufacture, built for military and civilians in the mid-fifties, performance allowed him to operate on tracks of only 275 meters, powered by two radial engines Alvis Leonides 531, is note their fins hyper-sustaining leading edge flaps attached to large surface deployable fixed landing gear with tail wheel, had a long life with airlines to provide valuable in more than 21 countries including Latin lines in Canada, Ecuador , Mexico and the U.S., also operated by the air forces of three countries the RAF, the Royal Malaysian Air Force and the Nepal, author RE Poulton and taken from the web: http://www.flightglobal.com/airspac. ation ..-twin-pioneer-cutaway-drawing-82079.aspx Successes