erwin greven wrote: ↑6 months ago
Hamilton claims 'several' cars illegal after US GP disqualification
Im honestly just glad that Max and Lando both got checked and cleared.
I can only imagine the shitfight if they had not been checked.
Actually an article I read suggsts that the FIA can tell from the telemetry who was pushing the rules, and in effect Lewis and Leclerc were likely to have been picked from data available plus other giveaways. It points to Merc and Ferrari at best being less smart than others. Red Bull it seems were very smart and did run their cars higher than Charles and Lewis. ISTR reading that Mercedes admitted GR was running a less aggressive ride height which might explain why his race pace was uncharacteristically different to Lewis. In effect the info the Stewards have on their laptops basically highlights the cars to check.
The article also reminded me of when Red Bull ordered Max and Sergio not to take Eau Rouge flat (as they could) at the Belgian GP. The reasons for that was to avoid their cars bottoming out as the suspension compressed.... a step taken to save wear on the plank and avoiding the post race eligibility issues. Smart thinking from RB who had the smarts to realise a small compromise at one corner gained them more lap time in the rest of the lap. (Had they raised their ride height to cope with flat through Eau Rouge it would have reduced downforce for the rest of the lap.
This is an extract from a much longer article, but has the part I am talking of.
Why Hamilton and Leclerc were caught out
The FIA can zero in on which cars to single out for further inspection based on a variety of indicators.
In the case of a worn floor, a beaten-up titanium skid plate gives off a strong smell that can arouse suspicion from the pitwall. A better read is the onboard footage, which the FIA will monitor to see if drivers’ heads are wobbling as a result of bottoming out over bumps.
Following the high-profile return of porpoising amid the adoption of ground effects for 2022, the FIA also now measures the vertical oscillations in the car to ensure the drivers are not put at risk from vibrations.
Should a car attract attention for these excessive movements, then the technical delegate will be inclined to investigate further.
Bauer is also not limited to one car per team, meaning he could have also ordered spot checks for George Russell and Carlos Sainz if there was grounds to suspect both Mercedes or both Ferraris were running too low.
That the pair were left alone suggests they did not leap out to the FIA based on their onboard camera feeds and oscillations data. It is therefore likely that Hamilton and Leclerc fell foul of the rules based on their own individual set-ups.
To wear the rear skid plate points to the W14 and SF-23 either running too low a ride height at the back axle or running too soft to allow the cars to kiss the asphalt as they rebounded from hitting a bump.
That Verstappen passed scrutineering might point to the RB19 running stiffer to lock the ride height in position to stop it from bottoming, however uncomfortable for the driver.
Notably, the Red Bulls had to lift through Eau Rouge at Spa earlier this season to avoid grounding out.
Hamilton and Leclerc being pinged in no way points to a deliberate attempt to dodge the rules.
Instead, they were caught out by the sprint format that only allows for one hour of practice before parc ferme comes into effect. From then on, teams are heavily constricted with how they may alter the car.
The limited window meant some teams did not complete heavy fuel running prior to the GP. They were therefore unable to optimise the car to navigate the Circuit of the Americas bumps, which were much worse this year despite the resurfacing of Turns 12, 14, 15 and 16.
What’s more, teams are free to remove the plank to take accurate measurements to assess wear up until parc ferme takes hold. Then they are limited to effectively highly educated guesses.
It appears to be the case that Mercedes and Ferrari simply got theirs wrong.
Perfection versus pragmatism
While the FIA can count on data relating to oscillations plus onboard footage to identify potential non-compliant cars, the potential issue is that of the 17 finishers, 13 cars were not checked for their floors.
That necessarily means there is a chance, however remote, that one or more might have finished with a plank that had illegally worn excessively. They therefore wrongly scored points, having profited further from Hamilton and Leclerc’s exclusions.
As such, the perfect scenario would be that every car undergoes a firm set of scrutineering checks. But the FIA cites practical limitations that prevents this from being the case.
This link is to the full article from which the above was extracted.
https://www.autosport.com/f1/news/the-c ... 1678187073
Sort of associated but interesting anyway..... I was reading at the DHL website the logistical nightmare for them of getting all the freight from Austin to Mexico City. It highlights the potential side effects of back to back races in terms of (lack of) available time to carry out thorough post race checks on all cars rather than just 4.. The teams have to break down their set ups and cars to load them into the containers incredibly quickly. They have just 37 hours from the race end for everything to have arrived in Mexico City and available for the teams to start their set up, repair and race prep the cars and be ready for scrutineering and the start of official stuff The trucks have to start rolling out at 4am Monday morning. Even to go to Mexico 7 jumbo jets and and a large number of trucks are involved. They also have airport curfews to deal with not to mention both US and Mexican customs.
Oh and here is the FIA full post race Scrutineering report which lists the procedures post race carried out on all cars plus also the other tests (ie plank etc). They are quite busy blokes post race given the time demands outlined above.
https://www.fia.com/sites/default/files ... eering.pdf