The Saab 29 Tunnan, colloquially Flygande tunnan or just Tunnan (English: "The flying barrel", "The barrel"), is a Swedish fighter that was designed and manufactured by Saab in the late 1940s. It was the second turbojet-powered combat aircraft to be developed in Sweden, the first being the Saab 21R, and it was the first Western European fighter to be produced with a swept wing post World War II, only being preceded in Western Europe as a whole by the Me 262 built during the war. Despite its rotund appearance, from which its name is derived, the J 29 was fast and agile and served effectively in both fighter and fighter-bomber roles into the 1970s.