Gérard Ducarouge (Technical Director) Michel Beaujon (Chief Designer) Robert Choulet (Head of Aerodynamics)
Predecessor
JS5
Successor
JS9
Technical specifications[1]
Chassis
Aluminium monocoque
Axle track
Front: 1,536 mm (60.5 in) Rear: 1,600 mm (63 in)
Wheelbase
2,608 mm (102.7 in)
Engine
Matra MS76, 2,993 cc (182.6 cu in), 60° V12, NA, mid-engine, longitudinally mounted
Transmission
Hewland 2-200 TL 6-speed manual
Weight
580 kg (1,280 lb)
Fuel
Shell
Tyres
Goodyear
Competition history
Notable entrants
Ligier Gitanes
Notable drivers
Jacques Laffite Jean-Pierre Jarier
Debut
1977 Argentine Grand Prix
First win
1977 Swedish Grand Prix
Last win
1977 Swedish Grand Prix
Last event
1978 Swedish Grand Prix
Races
Wins
Poles
F/Laps
23
1
2
0
Constructors' Championships
0
Drivers' Championships
0
The Ligier JS7 was the second Formula One racing car made by Ligier. As with the preceding JS5, the letters "JS" were in tribute to Guy Ligier's friend Jo Schlesser who was killed in the 1968 French Grand Prix.
Aside from using the Matra V12 rather than the usual Ford Cosworth unit, the JS7 was a very conventional design with a Hewland six-speed transmission and a longitudinally mounted engine and wishbone suspension. The JS7 forwent the giant air intake of the preceding JS5.[2] The front wing design echoed that of the Ferrari 312T.
The JS7 competed in the 1977 Formula One season and the first two races of the 1978 season. An updated version, dubbed the JS7/9 was used for three races in 1978 until the definitive 1978 car, the JS9 was ready. Laffite's victory in the 1977 Swedish Grand Prix was the first all-French victory - chassis, engine and driver - in World Championship history.[3]
^Ligier JS7 @ StatsF1
^Thevenet, Jean-Paul, ed. (January 1977). "Nouveautés F1 1977" [F1 News 1977]. L'Automobile (in French) (367). Neuilly, France: Societé des Editions Techniques et Touristiques de France: 74.
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Global Information
Jacques Laffite