Saab 29: The Spectacular 'Flying Barrell' Was Built For a Russia War
The first swept-wing fighter built in Western Europe and a child of the Cold War, the Saab 29, sometimes also referred to as the J29, fittingly earned the moniker “Tunnan” or “Barrel.” Designed in the late 1940s, it was the second turbojet-powered combat aircraft developed in Sweden, after the Saab 21R.
Source: nationalinterest.org