According to present plans, electric blankets ought to be faraway from Formula 1 by the 2024 season. Pirelli explains how this measure impacts tire improvement.
Formula 1 is the one main racing sequence in the world that also makes use of electric blankets. But the synthetic pre-curing of rubber ought to be completed quickly. It will not assist the bold local weather objectives of First Class if the heating caps are pumped into the socket for too lengthy. In addition, groups need to save on costly tools.
However, electric blankets shouldn’t be eradicated in a single day. Together with the groups and provider Pirelli, the FIA agreed on a tier system. In June 2021, the utmost temperature of the tire heaters has been lowered to 100°C on the entrance and 80°C on the rear. This yr solely 70°C is allowed for all poles. For this goal, the variety of electric blankets was lowered from 40 to twenty.
Mario Isola, Pirelli’s sporting director, explains why the technique of small steps was chosen: “If you need to drive a automotive with out an electric blanket, it’s a must to design a very new tire. It isn’t sufficient to create new compounds with a big working vary. The automobiles in Formula 1 are so quick that they generate nice forces. in order that the stress will increase from ten to 12 whereas driving.This adjustments your complete profile and phone space of the tire.
High hundreds in Formula 1
Pirelli cannot be taught a lot from Formula 2, the place electric blankets have lengthy ceased to be a problem. In the junior class, the rubber bands are inflated to a stress between 13 PSI and 15 PSI whereas hanging. During stenting, it stabilizes at values barely above 20 PSI. Since automobiles do not usually pack such a big drive, tire specialists say this stress distinction is appropriate.
But this isn’t the case in the primary class: “The enhance in stress is twice as excessive as in Formula 2”, Isola believes. “Because of the excessive load, we can’t begin with 15 PSI in Formula 1. Then the drivers ought to have eased up at first of the race and slowly raised the temperature of the tires. Of course not. Work in the race at 20 or 21 PSI. Then the stress is 30 PSI- rises above.
The earlier season, with the present 18-inch tires, lowered temperature specs for electric blankets have been used in the course of the take a look at interval. Therefore, there have been no disagreeable surprises when a very new product was launched. In the upcoming season, the engineers must replenish it once more.
There are plans to ban electric blankets
“Next yr, the temperature of electric blankets will proceed to drop – right down to solely 50 ° C on the back and front,” says Isola. “It additionally will increase the stress distinction in the stents. We intentionally take small steps in order that nothing occurs and the present does not undergo. This yr, the tires are doing very properly. Of course, even when we eradicate this example, it ought to keep that manner. All electric blankets.”
An entire ban on tire heating is deliberate for the 2024 season. Before the measure is permitted in the ultimate rules, there ought to be a dialogue with all events about whether or not they actually need to take the chance. Smaller groups in explicit are pushing for the ban to stay in place. The plan remains to be in progress, guarantee Pirelli officers.
In current years, a single provider has been confronted with the duty of constructing fully new tires a number of occasions. Most of the testing in the course of the improvement section takes place on the testing grounds in Milan. However, this can’t fully change sensible assessments with new prototypes on an actual race observe. “We want autos of the present technology. We have to go on completely different roads the place the tires are subjected to completely different hundreds. And we have to drive in completely different situations,” emphasizes Isola.
Tires ought to match all autos
A file 24 races are deliberate for 2023 in the new calendar, which isn’t met with enthusiasm at Pirelli. This signifies that there are not any gaps left to check the tires. Mechanics undergo their enamel when confronted with heavy workloads and the stress of journey. However, in the course of the European season, some groups will likely be obliged to run additional take a look at laps for Pirelli on the Tuesday and Wednesday after the Grand Prix weekend.
It isn’t simple in future overseas competitions. Here, Pirelli depends on assessments in the course of the occasion. The second free trial is prolonged to 90 minutes and is designed to gather knowledge with prototype tires. This new format will likely be examined for the primary time this yr in Austin.
“The concept of utilizing FP2 for testing is superb,” says Isola. “Teams need not go to the observe or keep longer after a race weekend. But when you will have a new good concept, the groups have issues. They complain about having to make use of the identical automobiles and the identical engines. It’s like a weekend. Running shortly turns into a problem.
However, it is vital for tire engineers to have all groups concerned in improvement. According to Isola, not all automobiles put the identical load on the tires: “The quick automobiles put extra stress on the tires. We have to make sure that the warm-up course of works with the sluggish automobiles as properly. , it will not be simple to discover a good compromise to work on all 20 drivers and on all tracks.”