It featured double wishbone front suspension with upper and lower links at the rear, and outboard springs all round. Another conventional design, it followed the design thinking of the current trend of F1 cars of a low centre of gravity and wedge shape pioneered by the Lotus 72 and McLaren M23. The result was the IR (the initials standing for Iso Rivolta, although the company had no part in the car's gestation), designed by ex March engineer John Clarke. 4 Complete Formula One World Championship resultsĪs Williams's current chassis, the Iso–Marlboro FX3B, did not conform to 1973's new deformable structure regulations, a new car had to be designed.These three surviving cars were renamed as Williams cars for 1975, and carried separate designations: FW01, FW02 and FW03, although the cars were of the same type. Another example was completed during the 1974 season. When Marlboro and Italian sports car manufacturer Iso both withdrew their backing before the 1974 season, the two cars were renamed for 1974 as the Iso–Marlboro FW. One was destroyed in an accident at the 1973 German Grand Prix, and a replacement was built. The car was initially designated in 1973 as the Iso–Marlboro IR and two examples started the season. The Williams FW was a Formula One car used by Frank Williams Racing Cars during the 1973, 19 seasons. Unless otherwise stated, all data refer toįormula One World Championship Grands Prix only. Gijs van Lennep in the Iso–Marlboro FW at the 1974 Dutch Grand PrixĪluminium monocoque, with engine as a fully stressed member.įord Cosworth DFV 2,993 cc (182.6 cu in) 90° V8, naturally aspirated, mid-mounted.

Williams fw putter