The Saab 29, colloquially called Flygande tunnan (English: "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.

The Saab 29 Tunnan is a first-generation jet fighter, possessing the distinction of being the first Swedish aircraft to be specifically designed to use jet propulsion (Sweden's first jet fighter, the Saab 21R, had been derived from the piston-engined Saab 21). Visually, it was a small, chubby aircraft featuring an integral single central air intake forming the aircraft's nose, the pilot being housed within a bubble canopy located directly above the air intake on the upper-forward section of the fuselage, and a very thin mid-mounted swept-back wing. The two-spar wing is a single piece structure attached to the fuselage by four bolts. The undercarriage was hydraulically retracted during flight and was designed to be suitable for landing upon rough grass airstrips.

Controls:
VTOL: Flaps
Trim: Elevator Trim