Lotus 33
Jackie Stewart drives a Lotus 33 in 2013
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| Category | Formula One | ||||||||||
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| Constructor | Team Lotus | ||||||||||
| Designer(s) | Colin Chapman, Len Terry | ||||||||||
| Predecessor | Lotus 25 | ||||||||||
| Successor | Lotus 43 | ||||||||||
| Technical specifications | |||||||||||
| Chassis | Aluminium monocoque | ||||||||||
| Suspension (front) | Upper cantilever rocker arms and lower wishbones, with inboard mounted Armstrong coilover spring/dampers | ||||||||||
| Suspension (rear) | Upper transverse links and twin radius rods with reversed lower wishbone. Armstrong outboard coilover spring/dampers. | ||||||||||
| Engine |
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| Transmission | ZF 5-speed manual | ||||||||||
| Tyres | Dunlop | ||||||||||
| Competition history | |||||||||||
| Notable entrants | |||||||||||
| Notable drivers | |||||||||||
| Debut |
1964 Aintree 200, Aintree. |
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| Constructors' Championships | 1 (1965) | ||||||||||
| Drivers' Championships | 1 (Jim Clark, 1965) | ||||||||||
The Lotus 33 was a Formula One car designed by Colin Chapman and Len Terry and built by Team Lotus. A development of the successful Lotus 25, in the hands of Jim Clark it won 5 World Championship Grands Prix in 1965, assisting Clark to his second World Championship.
The Lotus 33's development was based on the earlier Lotus 25 model, taking the monocoque chassis design to new development heights. The 33 was again powered by the 1500 cc Climax engine. The 33 was almost identical to the 25, but had suspension designed around newer, wider tyres. The car was more rigid and was simpler to build than its predecessor.
Six Lotus 33s were constructed, with chassis numbers following on from the 25 and beginning with R8. One chassis, R12, was modified to take the stillborn Climax FWMW flat-16 engine; this car was designated the Lotus 39. Chassis number R13 was not used by Team Lotus but was later unofficially adopted by Reg Parnell Racing for their crashed chassis R4, rebuilt around a 33 chassis. The last of the series, R14, was built with a 2-litre version of the Climax V8 for the 1966 World Championship season, pending the arrival of the Lotus 43.
Introduced for the 1964 season, the 33 made its first appearance at the non-Championship Aintree 200. Clark qualified fourth, and set fastest lap before retiring. The 33's first World Championship event was the German Grand Prix. However, both Clark and his team mate Mike Spence struggled with the car and it was not until the following year that it came good. Clark won the first event of 1965, the South African Grand Prix and went on to take four more wins on the way to his second world championship. Clark missed the Monaco Grand Prix (a race which he would never win) to race in the Indianapolis 500, which he won.
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Wikipedia