High Quality Content by WIKIPEDIA articles! The Sabre dance is the name given to pitch-up, a particularly dangerous behaviour of swept wings, which became apparent in the USAF during the development of the F-100 Super Sabre. When a swept wing starts to stall the outermost portions tend to stall first. Since these portions are behind the center of gravity, the overall lift force moves forward, pitching the nose of the aircraft upwards. This leads to a higher angle of attack and causes more of the wing to stall, making the problem worse until the pilot loses control. This problem could easily have fatal results at low altitude, where there was insufficient time for the pilot to regain control or eject before hitting the ground: a large number of aircraft were lost to this phenomenon whilst landing, leaving the plane tumbling down the runway.

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