High Quality Content by WIKIPEDIA articles! The Saab 29, popularly called Flygande tunnan ("The Flying Barrel"), was a Swedish fighter designed and manufactured by Saab in the 1950s. It was Sweden's second turbojet-powered combat aircraft, the first being the Saab 21R. Despite its rotund appearance, the J 29 was fast and agile, serving effectively in both fighter and fighter-bomber roles into the 1970s.In the aftermath of the Second World War, it was decided that Sweden needed a strong air defense built around the newly developed jet propulsion technology.