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March 2-4-0
The March 2-4-0 was an experimental six-wheeled Formula One racing car built by the March Engineering company of Bicester, UK. It was constructed in late 1976 and tested in early 1977.
The car followed on from the successful use by Tyrrell Racing of a six-wheeled car, the Tyrrell P34, in Formula One racing. However, the engineering concept behind the 2-4-0 was quite different.
==Tyrrell P34: four wheels at the front ==
(詳細はTyrrell P34 was that this drag effect could be reduced by using smaller diameter tyres at the front. At the time, conventional F1 front wheels would measure around 16" (40 cm) diameter but Tyrrell planned to use just 10" (25 cm) diameter wheels. The corresponding loss of front-end grip was overcome by incorporating two front wheels per side thus actually increasing grip as well as decreasing drag. The design incorporated a system whereby all four front wheels could steer the car.
The P34 was reasonably successful with the two cars taking a memorable 1–2 in the Swedish Grand Prix in 1976. The Tyrrell team also finished 3rd and 4th overall in the championship. The car was less successful in 1977 however and the idea was dropped. Reasons given were that although Goodyear had manufactured special tyres for the car, the tyre company had failed to match the development work on them compared to the normal sized tyres used by other teams. With all four front wheels steering the car, Tyrrell also found that the P34's complex four-wheel front suspension assembly added a lot of weight to the car.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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