After what occurred in the Azerbaijan Grand Prix at the finish of Could, when the vehicles of Lance Stroll, First after which Max Verstappen (which was first) blew out a rear tire and hit the wall, Pirelli bought right down to enterprise. It couldn’t be repeated once more.
Pondering of a path like that of Silverstone, scene of passages by which tires actually disintegrated, as occurred in the horrible 2013 or, to a lesser extent, in 2019, the Milan agency determined to speak to the FIA and the groups, and to face agency on the subject of verifying the temperatures and pressures of their video games to the letter earlier than going out to shoot, and in addition on the return, with some tables of ranges stress lows as indoor air cools.
Verstappen, after the KO in Baku..
All of it got here right down to a extreme FIA directive to the groups (It got here into drive at the Styrian GP) by which it warned of sanctions if it was found that somebody was competing with much less stress than that designated by the provider. The explanation is easy: the much less air, the extra contact floor of the rubber with the floor and higher pace of passage by means of a curve, however with a downside, the lateral stress of the rubber is an excessive amount of and the carcass provides means till it breaks violently. .
New, firmer casing
In some circuits it is not essential, however in others, like Silverstone, with a terrifying mixture of excessive pace corners, with very abrasive asphalt, the security of the pilots is at stake.
As well as, at the Austrian GP two weeks in the past, Pirelli had the groups check a brand new tire, with a stronger carcass (or sidewalls). “With this new construction, Pirelli supplies a tire that can assure even greater ranges of integrity in the excessive circumstances that present vehicles can generate,” mentioned the Italian model. As all the pieces went in response to plan, final week the FIA Motor Council gave the go-ahead to the new rear wheel specification beginning this weekend.
Alonso exams the new Pirelli wheels at the final Austrian GP..
By no means seen pressures
On the different hand, Pirelli has stored the letter to lift the minimal stress of the wheels as much as 25 psi at the entrance and 23 psi at the rear, figures by no means seen in current occasions, which make it tough for the pilots to manage, in alternate for the wheels holding with out blowouts.
As well as, the camber angle (destructive inclination of the wheels with respect to the floor airplane), which works from a most of -1.75 to -1.50 for this race, that is, they should be straighter with respect to the asphalt than earlier than, which additionally means much less help actual when the pilot turns the steering wheel at excessive pace, however much less lateral drive on the tires.
Pirelli gambles its status and is aware of it, and that is why they’ve measured very properly the steps with vehicles that have already handed the downforce restrict that 13-inch wheels, a measurement of the 70s in avenue vehicles, can help.
In 2021, 18-inch wheels arrive
All this hazard come to an finish in Abu Dabi, with the final race of the yr. To be the one to finish an period, that of the backside skid (fiber) automobile, which was launched in 1994 (at the premiere of Max Mosley as president), exactly to remove the hazard of floor impact and flying vehicles. In 2022 this philosophy is recovered, with all the security ensures, to learn the overtaking on the put up. Therefore the radical change in the design of the new vehicles.
With them they are going to arrive 18-inch wheels, with a lot decrease flanks and due to this fact extra resistant and non-deformable when passing by means of excessive pace curves. The pilots are already testing them in the simulator and on the track, and so they agree that it is going to be a really totally different type of driving than the one they’ve to use at the moment.