The Flying Barrel: How a rotund Swedish fighter became a Cold War icon

Cultures · Published 10 October 2026 Swipe more like this →

In short: With its chubby fuselage and swept wings, the Saab 29 Tunnan looked like an unlikely combatant. Yet, this barrel-shaped jet became Sweden's first purpose-built jet fighter, proving remarkably agile in the skies over the Congo and setting world speed records that silenced early skeptics who mocked its unconventional design.

Development of the Saab 29 began in 1945, driven by Sweden's urgent need to modernize its air force. Saab designers, led by Lars Brising, initially considered a cigar-shaped design similar to the American P-80 Shooting Star. However, they ultimately chose a barrel-like fuselage to accommodate the powerful de Havilland Ghost turbojet engine. This rotund shape, which earned the aircraft the nickname 'Tunnan' or 'The Barrel,' was paired with swept wings—a design feature inspired by German research data obtained by Saab manager Frid Wänström in Switzerland at the end of the Second World War.

The aircraft's performance frequently exceeded initial estimates. During its service life, the J 29 set a world speed record on a 500 km closed circuit in 1954, reaching 977 km/h. Despite its success, the program faced significant challenges. Early pilots struggled with the transition to swept-wing flight, and the lack of a two-seat trainer variant contributed to a poor safety record, resulting in 99 pilot fatalities during training. The aircraft eventually saw combat during the 1960s, when Swedish J 29Bs were deployed to the Republic of Congo for a UN peacekeeping mission, where they were praised for their exceptional capabilities.

The Tunnan's legacy extended beyond Sweden, with the Austrian Air Force operating the type until 1972. Its operational history includes strange incidents, such as when two Austrian pilots accidentally crossed into Czechoslovakia in 1964 due to bad weather and a radio beacon error, forcing them to land in a field near Prague. Today, several Tunnans are preserved in museums across Europe and the United States, while at least one example remains airworthy, serving as a flying testament to Sweden's rapid post-war aviation advancement.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• The Saab 35 Draken: A Cold War fighter designed to land on public roads
• Sweden’s Gripen fighter was designed to operate from rudimentary roads during a national invasion.
• The aircraft designed by secret papers from a fleeing Nazi engineer
• The Saab 37 Viggen was the first aircraft to use an airborne digital computer.
• The Saab 340 was a revolutionary regional airliner that outlived its own production line
• The shifting sands of the Atlantic's most famous graveyard
• How a 14th-century plague unintentionally protected an indigenous way of life
• The night the lights stayed on during the Sabra and Shatila massacre
• The shifting boundaries of the Sámi language family
• How Sabrina Carpenter transformed from Disney child star to a record-breaking pop powerhouse
• From karate champion to screen star: the multifaceted rise of Ryusei Yokohama
• The Mumbai 'Encounter Specialist' caught between elite policing and criminal allegations

More in Peoples & civilisations · More in Cultures · Latest · A–Z · All topics