Ligier JS19
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| Category | Formula One | ||||||||
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| Constructor | Ligier | ||||||||
| Designer(s) | Michel Beaujon | ||||||||
| Predecessor | Ligier JS17B | ||||||||
| Successor | Ligier JS21 | ||||||||
| Technical specifications | |||||||||
| Chassis | Aluminium monocoque | ||||||||
| Axle track | Front: 1,800 mm (71 in) Rear: 1,600 mm (63 in) |
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| Wheelbase | 2,700 mm (110 in) | ||||||||
| Engine | Talbot 3.0, 2,993 cc (182.6 cu in), V12, NA, mid-engine, longitudinally mounted | ||||||||
| Transmission | Hewland 5-speed manual | ||||||||
| Weight | 590 kg (1,300 lb) | ||||||||
| Fuel | Elf | ||||||||
| Tyres | Michelin | ||||||||
| Competition history | |||||||||
| Notable entrants | Equipe Talbot Gitanes | ||||||||
| Notable drivers |
 Jacques Laffite Eddie Cheever
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| Debut | 1982 Monaco Grand Prix | ||||||||
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| Constructors' Championships | 0 | ||||||||
| Drivers' Championships | 0 | ||||||||
The Ligier JS19 was a Formula One racing car manufactured and raced by Equipe Ligier during the 1982 Formula One season. Powered by a Talbot-badged Matra V12 engine, the JS19 was driven by Jacques Laffite and Eddie Cheever.
The JS19 was designed by Michel Beaujon under the technical direction of Jean-Pierre Jabouille, who had retired as a driver from Formula One the previous year. It was provided with a Matra MS81 V-12 badged as a Talbot. The chassis had side pods which enclosed the rear suspension linkage, which minimised disruption to the air flow, and had skirts running their full length for maximum ground-effect. However, when introduced for its first race, the 1982 Monaco Grand Prix, the team was forced by race officials to remove a portion of the skirts with a resulting loss of downforce that affected the cars' performance. The team used the JS17B, with which it had started the first five races of the season, for the following races in the United States and Canada while the aerodynamics of the JS19 were reworked in wind tunnel testing. A single JS19 was present for the Dutch and British races while the other was in the wind tunnel. Two cars were present from the French Grand Prix onwards.
The Ligier team had raced the JS17B, an update of the 1981 car, for the early part of the year before introducing the JS19 at Monaco. The team drivers, Eddie Cheever and Jacques Laffite, qualified 16th and 18th on the grid, respectively, but both retired from the race. When the team were down to a single JS19 for races, Cheever attempted to qualify for the Dutch race but failed when he crashed heavily, damaging it beyond repair. Laffite qualified a new JS19 20th at the following race in Britain but retired with gear box issues. Both drivers made the grid in France and went on to finish the race albeit well out of the points. Qualifying was a little better in Germany with Cheever 12th on the grid, the team's best placing so far with the JS19. Both drivers retired from the race with handling issues.
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