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View Full Version : *** 2005 United States Grand Prix ***


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zondaland
06-24-2005, 10:49 AM
Over time the stories coming out of Michelin have changed somewhat, that particular story that I referred to came from quite early on in the drama, it is quite possible that they have amended their story as more information has come to light, however I am not aware of the Michelin explanation at present.

The difficulty with the FIA instituting penalties is that the drivers need to know exactly where their speeds will be measured. Would IMS be happy to have two white lines painted across the track at either end of their famous turn 1? Also some teams would argue that they place less stress on their tyres, as such they should be allowed to go at a higher speed through the turn.

As to the actual stress levels on the tyres at different speeds I would think that the aerodynamics of the cars would have a major effect on those figures, as such for us to guess at stress loadings would be impossible.

The only solution I can see that could have worked would have been for the Michelin teams to run at a reduced speed through turn 13 and not be competing for points. So the 6 Bridgestone runners could duke it out for points while the Michelin guys put on a show around the other 12 corners.

mindgam3
06-24-2005, 05:20 PM
The difference in speeds when considering michelin runners going through turn 13 at their reduced speed is about 70-90mph....
Wrong.
If you'd wnat the forces to be lowered by 30% (wihich would be more than enough, a a tire engineer has expalined to me even 10% would be enough), you'd need to reduce speed by 30 mph (and for 10% 10mph). Any driver that cannot work at a relative speed of 30 mph should not be driving ...

I don't really agree with these calculations since the forces are mainly due to downforce; downforce is not related linearly with speed like you just stated in your figures

jakaracman
06-24-2005, 05:33 PM
Not linearly, but with square of speed (as my calculatons state), as in those calculations. 16% redusction in speed (30 mph at 180 mph) would reduce side forces by 30% - i calculated that from my head on the fly, so it's not really exact, just to show approx numbers ...
It just happoen to look simple linear in my 1st post, it is not, on one sied are hard numbers (mph), on other percentage ...

dannyroz
06-26-2005, 10:21 PM
http://img232.echo.cx/img232/6595/bilde0vs.jpg

Just thought I'd share