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Michelin: Let us test at Indy.


Michelin has revealed that there was no specific manufacturing problem with the various batches of tyres it took to Indianapolis for the controversial United States Grand Prix, but admitted that the compounds on hand were simply not suitable for the circuit.

The French company has issued an official statement to reveal the findings of its investigation into the situation that saw seven teams pull out of the race at the end of the formation lap, citing several reasons for the embarrassing withdrawal but insisting that it had no option but to stick to its principals over safety.

"The problem was that we under-evaluated the extreme constraints to which tyres were exposed through turn 13 in the specific context of 2005," competition director Pierre Dupasquier confessed, "We are grateful to our partners for their work with us right up to the last moment to seek a solution that would have permitted the race to go
ahead in total safety. We regret that the spectators did not see an exciting race, [but], in keeping with its principles, Michelin did not sacrifice safety for performance."

The full statement pointed, not only to the under-estimation of conditions at Indianapolis, but also to a lack of testing at the US circuit, which has never been possible in the six years that the USGP has run there, but was exacerbated by a resurfacing programme carried out ahead of the Indianapolis 500 in May.

"The tyres were not intrinsically flawed, but were insufficiently suited to the extreme racing conditions encountered through turn 13 this year," the statement confirmed, "Given the evolutions concerning the cars' aerodynamics, the regulations which govern the sport and the nature of track surfaces, etc, Michelin carries out testing in the course of each season with a view to developing the tyres which are the most suited to each event. Two key elements must be known about the Indianapolis circuit - turn 13, with its severe banking, is the only turn of its kind in a season of 19 races, and testing at Indianapolis was not possible.

"As a consequence, in order to define the specification of its tyres for Indianapolis, Michelin had to carry out simulation work based on the results of less severe testing at other venues and on estimations concerning the specific conditions likely to be met at Indianapolis in 2005. The Michelin investigations have revealed that the loads exerted on the rear left tyre through turn 13 at Indianapolis were far superior to the highest estimations of Michelin's engineers. This year, the situation through this corner turned out to be altered by the extreme combination of the speed, lateral acceleration and additional dynamic load. The tyres which Michelin took were therefore insufficiently adapted to the extreme conditions of turn 13 in 2005. This was a problem."

The statement also claims that the installation of a temporary chicane ahead of turn 13 would have been sufficient for the race to proceed with all 20 cars taking the start. The FIA and race stewards declined the proposal, leading to the withdrawal of all 14 Michelin runners.

'Investigations concerning the materials and construction employed for the tyres produced for Indianapolis have confirmed the absence of any anomaly," the statement continued, "The tyres did not have an intrinsic flaw, but they were not insufficiently suited to turn 13. Moreover, this analysis confirmed the pertinence of the tyre solutions specified for all the other circuits. In retrospect, this analysis perfectly validates the pertinence of the precautionary measures requested by Michelin and its partner teams in the interests of driver safety and fully confirms that the addition of a chicane at the entrance of turn 13, which would have guaranteed lower speeds through turn 13, would have enabled spectators not to be deprived of a high class competition, while at the same time guaranteeing the safety of the drivers."



Related Pictures

Click on relevant pic to enlarge
The Michelin tyres that lead to the withdrawal of all Michelin teams from the United States Grand Prix
The US GP gets underway with only the Bridgestone teams taking the start and the Michelin runners aborting the race at Indianapolis
Angry fans show their displeasure after the Michelin teams withdrew from the United States Grand Prix
Casio Edifice Launch at RedBull Engery Station, Daniel Ricciardo (AUS) Red Bull Racing with Tom Sellers, Michelin-star chef.
Casio Edifice Launch at RedBull Engery Station, Daniel Ricciardo (AUS) Red Bull Racing with Tom Sellers, Michelin-star chef.
04.09.2014.
Casio Edifice Launch at RedBull Engery Station, Daniel Ricciardo (AUS) Red Bull Racing, Tom Sellers, Michelin-star chef and Christian Horner (GBR) Red Bull Racing Team Principal.
04.09.2014.
Start-finish line rendering - Circuit of the Americas
22.10.2006 Sao Paulo, Brazil, Michelin celebrate - Formula 1 World Championship, Rd 18, Brazilian Grand Prix, Sunday Podium
22.10.2006 Sao Paulo, Brazil, Michelin group photo - Formula 1 World Championship, Rd 18, Brazilian Grand Prix, Sunday
19.10.2006 Sao Paulo, Brazil, 
Michelin Tyres - Formula 1 World Championship, Rd 18, Brazilian Grand Prix, Thursday
18.10.2006 Sao Paulo, Brazil, 
A Michelin tyre technician prepares wet tyres - Formula 1 World Championship, Rd 18, Brazilian Grand Prix, Wednesday
06.10.2006 Suzuka, Japan, 
Dry weather Michelin F1 tyre - Formula 1 World Championship, Rd 17, Japanese Grand Prix, Friday
05.10.2006 Suzuka, Japan, 
Honda F1 Racing, prepare their Michelin tyres for the weekend - Formula 1 World Championship, Rd 17, Japanese Grand Prix
08.09.2006 Monza, Italy, 
A Michelin tyre Engineer takes a temperature reading - Formula 1 World Championship, Rd 15, Italian Grand Prix, Friday Practice
07.09.2006 Monza, Italy, 
Michelin gather their customer teams wheels to fit their tyres - Formula 1 World Championship, Rd 15, Italian Grand Prix, Thursday
06.08.2006 Budapest, Hungary, Michelin Tyres of McLaren Mercedes in the paddock - Formula 1 World Championship, Rd 13, Hungarian Grand Prix, Sunday
06.08.2006 Budapest, Hungary, Michelin Tyres of McLaren Mercedes - Formula 1 World Championship, Rd 13, Hungarian Grand Prix, Sunday
03.08.2006 Budapest, Hungary, 
Renault F1 Team, Prepare their Michelin tyres for the weekend - Formula 1 World Championship, Rd 13, Hungarian Grand Prix, Thursday

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