Velocette logo, Atelier Chatokhine[/caption]
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Atelier Chatokhine, Triumph, BSA, Norton, Velocette[/caption]
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Frank Chatokhine's Velocette from Ateliers Chatokhine, Triumph, BSA, Norton, Velocette. Classic English motorcycles[/caption]
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Frank Chatokhine with a vintage Gentlemen's Factory "Motor Fucker" motorcycle sweatshirt[/caption]
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Rénia Seulin and her classic Triumph[/caption]
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Frank Chatokhine and his Norton for circuit racing, vintage class[/caption]
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Frank Chatokhine and his 1936 Triumph Speed Twin[/caption]
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Frank Chatokhine and Gentlemen's Factory worker jacket[/caption]
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Frank Chatokhine and his Triumph Speed Twin[/caption]
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Frank Chatokhine and his Triumph Speed Twin[/caption]
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Laurence Chatokhine[/caption]
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Frank Chatokhine on the Linas-Montlhéry track[/caption]
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Frank Chatokhine with his 1936 Triumph (500CC) photo Laurent Scavone[/caption]
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Frank Chatokhine with his 1936 Triumph photo Laurent Scavone[/caption]
Laurent Scavone, Gentlemen's Factory on the Linas Montlhéry track[/caption]
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Frank Chatokhine with his 1936 Triumph (500CC), photo Laurent Scavone[/caption]


Frank Chatokhine with his 1936 Triumph (500CC), photo Laurent Scavone[/caption]
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Rénia Seulin of Ateliers Chatokhine[/caption]
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Frank Chatokhine with his 1936 Triumph (500CC), photo Laurent Scavone[/caption]
Birth of the Linas-Montlhéry Autodrome:
The autodrome opened in 1924, under the impetus of Alexandre Lamblin. This inventor 4 and industrialist, born in 1884, made his fortune manufacturing radiators for airplanes, then for automobiles; passionate about sports, he owned a specialized newspaper: L'Aéro-sport5.
In the early 1920s, the automobile industry was buzzing, striving to break records, especially speed records. Previously unprecedented challenges, such as races between a car and an airplane, were fashionable and interested the general public.
Great Britain had the Brooklands circuit since 1907, the United States had the Indianapolis Motor Speedway, built in 1911, Italy used the Monza circuit, opened in 1922.
In 1922, Alexandre Lamblin, with the Aéro-sport team, conceived the idea of creating a place dedicated to all sports; in 1923, he acquired land located on the Saint-Eutrope plateau, in Linas, a village traversed by National Road 20, located between Longjumeau and Arpajon. The land was inexpensive and close (about thirty kilometers) to Paris. Two projects were studied, the less expensive one was chosen. It consisted of a two-and-a-half-kilometer speed oval, occupying the Saint-Europe plateau. The oval would later be extended and complemented by a road circuit built on two of the communes bordering Linas.
The Saint-Eutrope plateau is geographically connected to the Hurepoix, in the former Yveline forest. Formerly the location of the seigneurie6 and the Château de Fay7, it was then vast, wooded, sparsely inhabited, and undeveloped: a manor house (the "Château de Saint-Eutrope")8, near Linas, as well as the Fay farm9, to the northwest.
For Alexandre Lamblin, the speed oval was central, essential; he saw it as "a gigantic velodrome, on the scale of the speeds possible for the era", "a grand sporting theater"10.
Designed by the architect Raymond Jamin, the speed ring of the track is thus oval, comprising two straight sections measuring one hundred and eighty meters. It notably features concave turns; their cubic parabolic shape with a vertical axis includes a junction traced according to a logarithmic spiral. The design aims to allow one-ton vehicles to reach a speed of 220 km/h at the top of the turns. The circuit, measured on its median axis, is exactly 2,548.24 meters long.
Construction of the speed track, built on both a metal and concrete framework, began on .
One thousand tons of steel and eight thousand cubic meters of concrete were needed by two thousand workers to complete the structure; the work lasted six months. The use of prefabricated elements made it a pioneering construction site. The tracks were covered with Cold Asphalt, with the exception of the banked turns, which were concrete.
The autodrome was inaugurated on 11.
Linas-Montlhéry today:
A new homologation (driving without competition) for the speed ring and the 3.405 circuit was granted in 2010. This allows collectors and motorsport enthusiasts to return to the autodrome tracks. It was renewed in 2014.
Since then, about ten events take place each year. These events are managed by UTAC's event unit: Paris Auto Events. During the week, the autodrome transforms into a test center for everything related to terrestrial mobility.
In 2014, the "1924" building was inaugurated 24, 25.
In 2016, the Autonomous Vehicle Test Centre (CEVA) began its activities 26. The first tests are expected during 2018.