Ligier JS17

Ligier JS17

Company type	Racing car model
Industry	Motorsport
Predecessor	Ligier JS15
Founder	Gérard Ducarouge, Michel Beaujon
Successor	Ligier JS19
Products	Formula One cars
Parent	Équipe Ligier

The Ligier JS17 was a Formula One vehicle engineered by Gérard Ducarouge and Michel Beaujon for the Équipe Ligier squad during the season. Equipped with a Talbot-branded Equipe Matra Sports MS81 V12 power unit, it achieved two Grand Prix victories driven by Jacques Laffite. The model was later upgraded to the JS17B version for before being succeeded by the Ligier JS19.

Design and development

The JS17, crafted by Ducarouge and Beaujon, originally incorporated traditional suspension components but was later modified to include a hydro-pneumatic system designed to lower the chassis while on track, becoming effective by the Belgian Grand Prix. After utilizing the Cosworth DFV engine for two seasons, team principal Guy Ligier secured a supply of Talbot-badged Matra V12 engines for 1981. The MS81 powerplant, developed under Georges Martin’s guidance, initially delivered approximately 510 bhp at 12,500 rpm, with its maximum revs increasing to 13,000 rpm by the end of the year. A total of six JS17 chassis were produced, with the final one debuting at the Italian Grand Prix.

For , the JS17 continued in competition as the revised JS17B. Although Matra had plans to introduce a turbocharged V6 engine, these did not come to fruition, so the team persisted with the MS81 unit. All four remaining chassis were reconstructed and reinforced; nonetheless, the JS17B remained among the heavier cars competing that season.

1981 season

For 1981, regular Ligier driver Jacques Laffite was joined by Jean-Pierre Jabouille, formerly a race winner with Renault. However, Jabouille was still recuperating from earlier injuries, leading to Jean-Pierre Jarier substituting for him during the first two events. Both drivers qualified around mid-pack but did not complete the opening race. Jarier managed a seventh-place finish in Brazil, while Laffite earned the car’s initial points by finishing sixth.

Jabouille returned in Argentina but failed to qualify; meanwhile, Laffite retired due to handling difficulties. In Spain, Jabouille competed but was several laps behind and unclassified. By the Belgian Grand Prix, enhancements to the hydropneumatic suspension improved competitiveness: Jabouille qualified 16th and Laffite ninth; Laffite finished second while Jabouille retired. Laffite then secured third place in Monaco and followed with a second-place finish from pole position in Spain.

Jabouille faced ongoing challenges with qualifying and reliability issues and stepped down after Spain to concentrate on his technical role. Patrick Tambay, recruited from Theodore Racing, replaced him. Although Tambay qualified better than Jabouille had, he retired from every race he entered and did not score points.

Meanwhile, Laffite achieved third-place finishes in both Britain and Germany. Assisted by Jabouille’s input on tyre tactics, Laffite won in Austria starting from fourth on the grid and set the fastest lap. After two retirements, he claimed another victory in Canada, maintaining his contention for the Drivers' Championship until the final round. At the season-ending Las Vegas Grand Prix, he qualified 12th and finished sixth following a pit stop.

Laffite’s consistent results secured him fourth place in the Drivers' Championship with 44 points. With no points contributed by his teammates, Ligier concluded the season fourth in the Constructors' Championship.

1982 season

For the 1982 campaign, American racer Eddie Cheever partnered with Jacques Laffite. The team started the year using the upgraded JS17B models, but neither driver completed any of the initial three races. After opting out of the San Marino Grand Prix, Cheever achieved a podium finish by taking third place at Zolder, while Laffite finished in ninth position.

The debut of the new JS19 occurred at the Monaco event; however, it failed to meet performance expectations. Consequently, Ligier reverted to running the JS17B in subsequent rounds as development of the JS19 continued. At Detroit, Cheever started from ninth on the grid and secured second place, whereas Laffite qualified 13th and ended up sixth. Both drivers retired during the Canadian Grand Prix, which marked the final race for the JS17B chassis. Cheever switched to the JS19 at the Dutch Grand Prix, but Laffite remained with the JS17B, qualifying 21st before withdrawing due to handling difficulties. At the British Grand Prix, Laffite piloted the JS19, while Cheever returned to the JS17B; he qualified 24th but retired because of an oil leak.

By season's end, Ligier secured eighth place in the Constructors' Championship with a total of 20 points. Of these, 11 points were accumulated through Cheever’s two podium finishes and Laffite’s sixth-place result while driving the JS17B.

Complete Formula One World Championship results

(key) (Bold denotes pole position; italics indicate fastest lap)

align=left|'Eddie Cheever' Retired Retired Retired 3rd 2nd Retired align=left|'Jacques Laffite' Retired Retired Retired 9th 6th Retired Retired

Year	Entrant	Chassis	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	Points	WCC
1981	Equipe Talbot Gitanes	JS17	Matra V12	Template:Michelin		USW	BRA	ARG	SMR	BEL	MON	ESP	FRA	GBR	GER	AUT	NED	ITA	CAN	CPL		44	4th
					Jean-Pierre Jarier	Retired	7th
					Jean-Pierre Jabouille		Did Not Appear	Did Not Qualify	Not Classified	Retired	Did Not Qualify	Retired
					Patrick Tambay							Retired Retired Retired Retired Retired Retired Retired Retired
					Jacques Laffite Retired 6th Retired Retired 2nd 3rd 2nd Retired 3rd 3rd 1st Retired Retired 1st 6th
1982	Equipe Talbot Gitanes	JS17B	Matra V12	Template:Michelin		RSA	BRA	USW															rowspan=3|'20*' rowspan=3|'8th'
					Retired

* Total includes 11 points earned with the JS19 chassis