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Speed: 27 kn (50 km/h) Range: 4,000 yd (3.7 km) Mark 2 (Bliss-Leavitt)
But airflow meeting the leading edges is initially decelerated, so the free stream speed must be slightly greater than Mach 1 to ensure that all of the flow over the aircraft is supersonic. It is commonly accepted that the supersonic speed range starts at a free stream speed greater than Mach 1.3.
Following a series of increasingly high-speed runs, the official speed record attempt took place on 3 April 2007. [ 3 ] [ 4 ] The top speed of 574.8 km/h (159.7 m/s, 357.2 mph) was reached at kilometre point 193 near the village of Le Chemin, between the Meuse and Champagne-Ardenne TGV stations, where the most favorable profile exists.
In 2007, Audi announced the sale of 999 1:2 scale Auto Union Type C pedal cars. The car was designed at Munich design studio. It features hydraulic dual-disc brake and its speed is controlled by the 7-speed hub gear with back-pedalling brake function. The car was made from aluminium space frame and the aluminium body panels.
For the purposes of this list, a production car is defined as: Being constructed principally for retail sale to consumers for their personal use, and to transport people on public roads (no commercial or industrial vehicles are eligible);
In 1983 Richard Noble had broken the world land speed record with his earlier car Thrust2, which reached a speed of 1,019 km/h (633 mph). The date of Andy Green's record came exactly a half century and one day after Chuck Yeager broke the sound barrier in Earth's atmosphere, with the Bell X-1 research rocket plane on 14 October 1947.