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- Jean-Albert_Grégoire abstract "Jean-Albert Grégoire (7 July 1899 in Paris – 19 August 1992) was one of the great pioneers of the front-wheel-drive car. He contributed to the development of front-wheel-drive vehicles in two ways. The first way was in developing and promoting the Tracta joint (designed by his friend Pierre Fenaille), which was, until manufacturing techniques had progressed sufficiently to allow the successful manufacture of the constant velocity joints commonly in use today, the preferred choice of most manufactures of vehicles that had driven front wheels. Tracta joints were used by many of the pioneers of front-wheel drive, including DKW between 1929 and 1936 and Adler from 1932 to 1939 as well as the cars designed by J A Grégoire that will be mentioned later. The Tracta joint was fitted to most of the military vehicles that had driven front wheels used by most of the combatants in the Second World War. They included Laffly and Panhard in France, Alvis and Daimler in the UK and Willys in the USA that used the joint in a quarter of a million Jeeps and many others. This was to continue after the war, the first Land Rover being so fitted.The second way he contributed to the development of front-wheel-drive vehicles was in designing and in some cases manufacturing front-wheel-drive cars. The Tracta Gephi was his first design and it was this car that inspired him to design a constant velocity joint. All subsequent Tracta cars, and there were about two hundred manufactured between 1927 and 1932, used it. The first of these was raced at Le Mans in 1927 completing the 24-hour race. The Tracta cars used engines from S.C.A.P. from 1100 cc to 1600 cc, and Continental and Hotchkiss, from 2700 cc to 3300 cc.J .A. Grégoire designed an 11cv 6-cylinder car for Donnet in 1932. Only four prototypes were produced, one being shown at the Paris Salon of 1932 before Donnet went into liquidation. He then worked with Lucian Chenard to design two cars for Chenard et Walcker. They were of advanced design but were not a commercial success. In 1937 he designed the Amilcar Compound, produced by Hotchkiss from 1938 to the Second World War, by which time 681 examples had been made. It was constructed using another of Grégoire's ideas, a cast Alpax (light alloy) chassis frame. Other advanced features were rack and pinion steering and all independent suspension. But the car had its bad points, cable brakes and gear-change linkage and a side-valve engine although the latter was still common at this time. An overhead valve version came later. During the Second World War he secretly worked with his design team at his works at Asnières-sur-Seine on a small car the Aluminium \"Francais-Gregoire\". It had a chassis-body frame of light alloy, front-wheel drive, an air-cooled flat twin engine and independent suspension on all wheels. A four-seat car weighing only 880 pounds (400 kg) and could reach 60 mph (97 km/h) while returning 70 mpg. This design was to form the basis of the 1950 \"Dyna\" Panhard. In 1950 another Hotchkiss car the \"Hotchkiss-Gregoire\", was produced again with an alloy chassis and body. With independent suspension on all four wheels and fitted with a water-cooled flat four engine of 2 litres, ahead of the front axle, it was fast, with a top speed of 94 mph (151 km/h), but the car was expensive and only 250 examples were made by 1954. In 1956 Grégoire produced a two-seat convertible with a 2.2-litre supercharged flat-four engine producing 130 bhp (97 kW; 132 PS) and, as in the case of the cars mentioned previously, front-wheel drive. All ten cars made were fitted with bodies designed and built by Henri Chapron.All the cars mentioned previously were front-wheel-drive cars. Grégoire also designed a couple of rear-wheel-drive machines, the first an electric car with the machinery in the mid-engine position and a gas turbine car the experimental Socema-Gregoire with a front-power-unit and rear-drive layout.".
- Jean-Albert_Grégoire birthDate "1898".
- Jean-Albert_Grégoire birthYear "1898".
- Jean-Albert_Grégoire deathDate "1992-08-19".
- Jean-Albert_Grégoire deathYear "1992".
- Jean-Albert_Grégoire thumbnail 1948_Hartnett_prototype.jpg?width=300.
- Jean-Albert_Grégoire wikiPageExternalLink biography.htm.
- Jean-Albert_Grégoire wikiPageID "13643846".
- Jean-Albert_Grégoire wikiPageLength "5288".
- Jean-Albert_Grégoire wikiPageOutDegree "33".
- Jean-Albert_Grégoire wikiPageRevisionID "705791627".
- Jean-Albert_Grégoire wikiPageWikiLink Alvis_Car_and_Engineering_Company.
- Jean-Albert_Grégoire wikiPageWikiLink Amilcar_Compound.
- Jean-Albert_Grégoire wikiPageWikiLink Asnières-sur-Seine.
- Jean-Albert_Grégoire wikiPageWikiLink Category:1899_births.
- Jean-Albert_Grégoire wikiPageWikiLink Category:1992_deaths.
- Jean-Albert_Grégoire wikiPageWikiLink Category:Automotive_pioneers.
- Jean-Albert_Grégoire wikiPageWikiLink Category:French_engineers.
- Jean-Albert_Grégoire wikiPageWikiLink Category:French_racing_drivers.
- Jean-Albert_Grégoire wikiPageWikiLink Category:Sportspeople_from_Paris.
- Jean-Albert_Grégoire wikiPageWikiLink Chenard-Walcker.
- Jean-Albert_Grégoire wikiPageWikiLink Continental_Motors_Company.
- Jean-Albert_Grégoire wikiPageWikiLink DKW.
- Jean-Albert_Grégoire wikiPageWikiLink Daimler_Company.
- Jean-Albert_Grégoire wikiPageWikiLink Donnet.
- Jean-Albert_Grégoire wikiPageWikiLink Flathead_engine.
- Jean-Albert_Grégoire wikiPageWikiLink France.
- Jean-Albert_Grégoire wikiPageWikiLink Front-wheel_drive.
- Jean-Albert_Grégoire wikiPageWikiLink Gas_turbine.
- Jean-Albert_Grégoire wikiPageWikiLink Henri_Chapron.
- Jean-Albert_Grégoire wikiPageWikiLink Hotchkiss_et_Cie.
- Jean-Albert_Grégoire wikiPageWikiLink Land_Rover.
- Jean-Albert_Grégoire wikiPageWikiLink Le_Mans.
- Jean-Albert_Grégoire wikiPageWikiLink Lucian_Chenard.
- Jean-Albert_Grégoire wikiPageWikiLink Panhard.
- Jean-Albert_Grégoire wikiPageWikiLink Panhard_Dyna_X.
- Jean-Albert_Grégoire wikiPageWikiLink Paris.
- Jean-Albert_Grégoire wikiPageWikiLink Tracta.
- Jean-Albert_Grégoire wikiPageWikiLink United_Kingdom.
- Jean-Albert_Grégoire wikiPageWikiLink United_States.
- Jean-Albert_Grégoire wikiPageWikiLink Willys.
- Jean-Albert_Grégoire wikiPageWikiLink World_War_II.
- Jean-Albert_Grégoire wikiPageWikiLink File:1948_Hartnett_prototype.jpg.
- Jean-Albert_Grégoire wikiPageWikiLinkText "Grégoire".
- Jean-Albert_Grégoire wikiPageWikiLinkText "Jean Albert Grégoire".
- Jean-Albert_Grégoire wikiPageWikiLinkText "Jean Gregoire".
- Jean-Albert_Grégoire wikiPageWikiLinkText "Jean Grégoire".
- Jean-Albert_Grégoire wikiPageWikiLinkText "Jean-Albert Grégoire".
- Jean-Albert_Grégoire dateOfBirth "1898".
- Jean-Albert_Grégoire dateOfDeath "1992-08-19".
- Jean-Albert_Grégoire name "Gregoire, Jean-Albert".
- Jean-Albert_Grégoire shortDescription "French racing driver".
- Jean-Albert_Grégoire wikiPageUsesTemplate Template:Authority_control.
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- Jean-Albert_Grégoire wikiPageUsesTemplate Template:Persondata.
- Jean-Albert_Grégoire wikiPageUsesTemplate Template:Refimprove.
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- Jean-Albert_Grégoire description "French racing driver".
- Jean-Albert_Grégoire description "French racing driver".
- Jean-Albert_Grégoire subject Category:1899_births.
- Jean-Albert_Grégoire subject Category:1992_deaths.
- Jean-Albert_Grégoire subject Category:Automotive_pioneers.
- Jean-Albert_Grégoire subject Category:French_engineers.
- Jean-Albert_Grégoire subject Category:French_racing_drivers.
- Jean-Albert_Grégoire subject Category:Sportspeople_from_Paris.
- Jean-Albert_Grégoire hypernym Pioneers.
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- Jean-Albert_Grégoire type Driver.
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- Jean-Albert_Grégoire type Q215627.
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- Jean-Albert_Grégoire comment "Jean-Albert Grégoire (7 July 1899 in Paris – 19 August 1992) was one of the great pioneers of the front-wheel-drive car. He contributed to the development of front-wheel-drive vehicles in two ways.".
- Jean-Albert_Grégoire label "Jean-Albert Grégoire".
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- Jean-Albert_Grégoire wasDerivedFrom Jean-Albert_Grégoire?oldid=705791627.
- Jean-Albert_Grégoire depiction 1948_Hartnett_prototype.jpg.
- Jean-Albert_Grégoire givenName "Jean-Albert".
- Jean-Albert_Grégoire isPrimaryTopicOf Jean-Albert_Grégoire.
- Jean-Albert_Grégoire name "Gregoire, Jean-Albert".
- Jean-Albert_Grégoire name "Jean-Albert Gregoire".
- Jean-Albert_Grégoire surname "Gregoire".