Wolf-Williams FW05
Wolf-Williams FW05 at Goodwood in 2010
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| Category | Formula One | ||||||||
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| Constructor | Hesketh/Wolf-Williams | ||||||||
| Designer(s) | Harvey Postlethwaite | ||||||||
| Predecessor |
Hesketh 308B (Hesketh) Wolf-Williams FW04 (Wolf-Williams) |
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| Successor | Hesketh 308D | ||||||||
| Technical specifications | |||||||||
| Chassis | Aluminium monocoque, with engine as a fully stressed member. | ||||||||
| Suspension (front) |
1975: lower wishbones, top rockers, in-board rubber springs over dampers, anti-roll bar. 1976: lower wishbones, top rockers, in-board coil springs over dampers, anti-roll bar |
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| Suspension (rear) |
1975: single top links, double lower links, twin radius arms, rubber springs over dampers, anti-roll bar. 1976: single top links, double lower links, twin radius arms, coil springs over dampers, anti-roll bar |
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| Engine | Ford Cosworth DFV 2,993 cc (182.6 cu in) 90° V8, naturally aspirated, mid-mounted. | ||||||||
| Transmission |
1975: Hewland FGA 400 5-speed manual 1976: Hewland DG 400 5-speed manual |
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| Weight |
1975: 580 kg (1,280 lb) 1976: 595 kg (1,312 lb) |
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| Fuel |
Duckhams (1975) FINA (1976) |
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| Lubricants |
Duckhams (1975) FINA (1976) |
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| Tyres | Goodyear | ||||||||
| Competition history | |||||||||
| Notable entrants |
Hesketh Racing Wolf-Williams Racing |
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| Notable drivers |
 James Hunt Jacky Ickx Michel Leclère Arturo Merzario
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| Debut | 1975 Italian Grand Prix | ||||||||
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| n.b. Unless otherwise stated, all data refer to Formula One World Championship Grands Prix only. |
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The Hesketh 308C was a Formula One racing car designed by Harvey Postlethwaite and used by Hesketh Racing in the latter stages of the 1975 Formula One season. The car featured the rubber suspension which Postlethwaite had pioneered on the preceding 308B model and a Ford-Cosworth DFV engine.
The 308C wasn't seen until the latter part of the 1975 season, It was entered by Hesketh Racing for Englishman James Hunt to drive. The 308C made its debut at the Italian Grand Prix and Hunt finished fifth. For the final race of the 1975 season, in the United States the Englishman finished fourth.
Before the start of the 1976 season, Canadian oil millionaire Walter Wolf bought 60% of Frank Williams Racing Cars and the team became Wolf-Williams Racing. However, Frank Williams was retained as team manager. soon afterwards Dr. Harvey Postlethwaite arrived as chief engineer. Simultaneously Wolf bought the assets of the Hesketh team that had recently withdrawn from F1.
The team was based in the Williams facility at Reading but used most of the cars and equipment once owned by Hesketh Racing. The team inherited the Hesketh 308C car used by Hesketh Racing during the final races of 1975, rebranding it as the Wolf-Williams FW05 and the Williams FW04 was similarly rebranded as the Wolf-Williams FW04, although it was only used in the opening race of the season, the 1976 Brazilian Grand Prix.
The team had two new drivers, for Brazil Italian Renzo Zorzi drove the FW04 and Belgian Jacky Ickx drove the FW05. Zorzi outqualified Ickx (17th and 19th), and both cars finished the race with Ickx eighth and Zorzi ninth. After this race, Wolf-Williams had two FW05s at their disposal and so the FW04 was put aside.
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