The radical flying wing that was scrapped by the thousands of pounds of melted steel

Wars & Conflicts · Published 16 October 2026 · Updated 25 October 2026 Swipe more like this →

In short: In the 1950s, the US Air Force didn't just cancel a promising bomber program; it ordered the aircraft to be physically destroyed. The Northrop YB-49 was a visionary jet-powered prototype that failed due to technical instability, political maneuvering, and a suspicious trail of industrial sabotage.

The Northrop YB-49 was a jet-powered evolution of the earlier XB-35, featuring a sleek, all-wing design that lacked a traditional fuselage. While its low-drag profile allowed for impressive feats—including an unofficial endurance record of 6.5 hours above 40,000 feet—the aircraft faced significant aerodynamic hurdles. During flight tests, the bomber tended to 'hunt' in yaw after turns, a directional oscillation that required long bomb runs to stabilize. While some pilots, like Robert Cardenas, noted the aircraft's marvelous performance, others warned of dangerous behaviors, such as the aircraft rotating backwards during a stall.

The program's demise was marked by tragedy and suspicion. In June 1948, a YB-49 crashed during a flight test, killing five crew members, including Major Daniel Forbes and Captain Glen Edwards. The structural failure was attributed to a high-speed, nose-over dive following a stall recovery. Later, during a high-profile flight to Washington, D.C., in February 1949, four of the aircraft's eight engines failed due to oil starvation. This, combined with a 1950 accident where the final prototype was destroyed by fire during taxi trials, fueled allegations of industrial sabotage.

The end of the program was abrupt. In May 1950, Secretary of the Air Force Stuart Symington cancelled all Flying Wing contracts. In a dramatic display, the remaining airframes were ordered to be chopped up and smelted in plain sight of Northrop employees. While some historians point to technical issues like the thick airfoil's inability to maximize high-speed performance, Jack Northrop himself believed the cancellation was a result of political pressure following his refusal to merge with Convair. Despite this failure, the YB-49's low radar cross-section and flight data provided the essential foundation for the B-2 Spirit stealth bomber decades later.

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