Ralph DePalma in his Packard '905' Special at Daytona Beach in 1919 A new record mark must exceed the previous one by at least one percent to be validated. Speed measurement is standardized over a course measuring either 1 kilometre (0.62 mi) or 1 mile (1.6 km), averaged over two runs with flying start (commonly called "passes") going in opposite directions within one hour. įIA LSRs are officiated and validated by its regional or national affiliate organizations. While Spirit of America set an FIM-validated LSR in 1963, all subsequent LSRs are by vehicles in FIA Category C ("Special Vehicles") in either class JE (jet engine) or class RT (rocket powered).
By a 1964 agreement between the Fédération Internationale de l'Automobile (FIA) and Fédération Internationale de Motocyclisme (FIM), respective governing bodies for racing in automobiles and motorcycles (two or three wheels), both bodies recognise as the absolute LSR whatever is the highest speed record achieved across any of their various categories. The land speed record ( LSR) or absolute land speed record is the highest speed achieved by a person using a vehicle on land. ThrustSSC, driven by Royal Air Force pilot Andy Green, holds the current land speed record at 1,220 km/h (760 mph) set October 15, 1997.
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