The Saab 29, colloquially called Flygande Tunnan ("The flying barrel"), is a Swedish fighter that was designed and manufactured by Saab in the 1940s.
It was Sweden's second turbojet-powered combat aircraft, the first having been the Saab 21R; additionally, it was the first Western European fighter to be produced with a swept wing after the Second World War, the Me 262 having been the first during the war.
Despite its rotund appearance, from which its name derives, the J 29 was a fast and agile aircraft for its era. It served effectively in both fighter and fighter-bomber roles into the 1970s.