Formula One Tyres - 2005 United States Grand Prix Controversy

2005 United States Grand Prix Controversy

On Friday, 17 June 2005, during the afternoon's practice session, Ralf Schumacher, who was driving for Toyota, crashed heavily in Turn 13 of the Indianapolis Motor Speedway road course, apparently as a result of a left-rear tyre failure. Turn 13 on the Indianapolis Motor Speedway road course is a high-speed banked turn (it is turn one of the oval run in the opposite direction), unique to Formula One racing, that causes a greater than usual lateral (horizontal) load. This pressure can cause the side walls of the tyre to bow and wear in abnormal places.

The following day, Michelin reported that the tyres it had provided for its seven customer teams – BAR, McLaren, Red Bull, Renault, Toyota, Sauber, and Williams – were unsafe for extended high-speed use on this turn, and announced its intention to fly in another set of tyres from its Clermont-Ferrand headquarters. However, the replacement tyres flown in, which were of the type used in the Spanish Grand Prix earlier that year, turned out to have the same problem when tested.

In a letter to FIA Race Director Charlie Whiting, Michelin representatives Pierre Dupasquier and Nick Shorrock revealed that they did not know the cause of Schumacher's tyre failure, and unless the cars could be slowed down in Turn 13, Michelin's tyres would be unsafe and unsuitable for use during the race. Whiting replied, expressing his surprise that Michelin had not brought along a second set of tyres, suggesting that the teams be informed of the maximum safe speed in Turn 13, and offered to monitor the turn by penalising any excess speed on the Michelin cars. He also addressed several solutions which had been proposed by the teams, insisting that use of the tyres flown in overnight would result in penalties, and the placement of a chicane in the turn was "out of the question" – the race would not be sanctioned by the FIA (making it a non-championship race) if the track layout was changed. He deemed the Michelin teams' proposals to be "grossly unfair" to the Bridgestone teams. In a second letter Dupasquier and Shorrock announced that they would not permit their teams to race on Michelin's tyres. The race then took place with only the three Bridgestone teams (Ferrari, Jordan and Minardi) taking part. The race was won by Michael Schumacher.

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