1963 BAC One-Eleven test crash

The 1963 BAC One-Eleven test crash was a fatal accident of a British Aircraft Corporation prototype aircraft on 22 October 1963, near Chicklade in Wiltshire, England while it was undertaking a test flight. All seven crew members on board the BAC One-Eleven were killed.

The accident occurred during a test flight of the first prototype BAC One-Eleven which had taken off from Wisley Airfield with seven crew on board, piloted by Mike Lithgow. The aircraft was on its fifth test flight to assess stability and handling characteristics during the approach to—and recovery from—a stall with the centre of gravity in varying positions. From an altitude of 16,000 feet and with the flaps extended 8°, the aircraft entered a stable stall and descended at a high rate in a horizontal attitude, eventually striking the ground with very little forward speed. The aircraft broke up on impact at Cratt Hill, near Chicklade, a small village in southern Wiltshire and caught fire, killing all seven crew on board.

Wikipedia