Automotive Black Technology Chapter 1583: : Preservation tactics!

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In F1 events, tires are roughly divided into dry tires and rain tires. Dry tires are divided into five types according to the temperature and speed of the track: purple ultra-soft tires, red super-soft tires, yellow soft tires, white medium tires, and orange hard tires.

Rain tires are divided into two types: full rain tires and semi-rain tires.

The full rain tires have a blue logo and are generally called blue tires, which are used in heavy rain weather. Semi-rain tires are also called green tires because they have a green mark on the edge of the tire. They are used when the rain is very light or there is not much water on the ground after it has just rained.

Now, the wheels of Williams' No. 2 car are equipped with blue full-weather tires!

In F1 before 2018, cars could only stop and change channels when there was clear rain on the field and the "rain sign" was illuminated on the track. However, with the modification of the 2018 rules, in order to obtain greater tactical flexibility, officials have allowed teams to freely choose the timing of pit stops to change tires.

Despite this, most teams will still choose to follow the previous method of changing tires, that is, they will stop to change tires when there is water on the road.

There are two main reasons for doing this;

The most important point is that there are seven annular longitudinal grooves on the all-weather tires. Compared with the longitudinal grooves on dry tires, the width of the grooves is slightly narrower, and is supplemented by equal-width diagonal arc grooves. With the central longitudinal groove as the center, it radiates to both sides, so it can effectively destroy the water film between the tire and the ground, and at the same time squeeze out the water in an orderly manner to ensure that the tire obtains maximum gripping ability.

Compared with dry tires, on watery roads, the top speed of a car using rain tires is higher than that of dry tires, and it makes the car easier to control.

However, the rolling resistance of full-weather tires is relatively large, and the consumption of power transmission is also relatively large, so the maximum speed of using this type of tire when driving on dry land will be much inferior to that of dry land tires.

Because of the force of the longitudinal tire pattern and the tire material being soft rubber, rain tires wear out a lot on dry ground.

So almost all fleets will change their vehicles only when they see serious water accumulation on the road.

And now, although the sky is covered with clouds, no one knows when the rain will fall. In sports events, weather is the most difficult factor to control, so almost all teams will choose to be conservative.

If you choose wet tires at the beginning of the race and if they don't come on for more than ten minutes, wouldn't it be a waste of a set of tires?

So the Williams team's tactics puzzled the audience and commentators.

"Oh my God, was Williams' technical director on drugs last night? He has put on rain tires early now. What if it doesn't rain after more than ten laps?"

"Yes! All the teams are running on slick tires, so they will fall behind a lot at the beginning of the race because of the tires!"

"FKit! It was so easy to get the fourth place on the grid yesterday, but it was all wasted!"

Amidst the commotion in the grandstands on the grid, it turned out that the Williams No. 1 car had fallen from fourth to fifth place.

However, although the commentators and the audience complained repeatedly about Williams' No. 2 car, in the team's pit area, all team members looked calm.

The request to use wet tires on the field was made by Javier himself before the game. This request was approved after research by Alonso and the team's tactical director.

On the track, Javier looked indifferent as he watched cars passing by him. Let the engine roar around you and just move forward steadily in your own way.

Through these two days of practice and qualifying, he already has a deep understanding of the power level of the new car. So even though he is now using full-weather tires that are lacking in top speed, with the good power output of the car, after falling two spots behind, he still firmly occupied the sixth position with his solid technology. And on the premise of controlling tire wear, slowly increase the speed.

At this time, the clouds in the sky had become thicker.

Hamilton has firmly taken the advantage at this time. With the convenience of starting first, he is trying his best to set the lap speed, trying to confirm the advantage at the beginning of the game.

His current car is equipped with a set of white intermediate tires, which correspond to the current temperature and humidity of the track and bring out the full performance of the Mercedes-Benz car.

In Hamilton's view, because of the uncertainty of the weather, he must reserve time for himself to make at least one pit stop to change tires.

As the engines of more than twenty racing cars roared, time passed little by little. One lap, two laps, three laps...

Soon, seven minutes of the game passed. At this point, Hamilton had completed four full laps. Under the circumstances of pushing the lap time as hard as possible, the set of white medium tires had already been damaged to a certain extent. From the rearview mirror, Hamilton could clearly see that there was flash on the edges of the left and right rear tires.

But at this time, through team communication, he learned that he was already 12 seconds ahead of the No. 1 Rysfast car behind him.

Under such circumstances, he planned to slow down, maximize the effectiveness of this set of tires, and continue moving forward.

In this way, two more laps were completed in a very short time.

The tires currently used by Mercedes-Benz are Bridgestone tires. In order to pursue performance, Bridgestone's wear resistance is not very good. Generally speaking, a set of tires will be useless after about eight laps. At this time, Hamilton had already run at top speed for six laps. While traveling at high speed, he found that the tires had begun to fall off.

This was a very dangerous signal, and he immediately asked the team to stop.

At this time, Javier had fallen behind to 8th place, and in terms of total score, he was 42 seconds behind Hamilton, who ranked first.

With this advantage, Hamilton pitted quickly. It only took the team more than two seconds to replace him with new tires.

Quickly returning to the track through the side lane, Hamilton still holds the lead. Although he has fallen to second place in the overall score, compared to the No. 1 Ruifa car behind him, his tires are brand new!

This was enough for him to regain the first place when the No. 1 Swiss-French car pitted.

However, at this time, Hamilton looked at the very low clouds above the track and had some bad premonitions.

"Did Javier stop to change the channel?" he asked through team communication.

"Not yet!" The technical director's voice came to my ears.

It was at this time that with a muffled thunder, raindrops poured down from the sky. There seemed to be no pause, and the raindrops suddenly turned into rain curtains!

Hamilton was in a three-turn section at this time. He only felt that the car's body had become uncontrollable when exiting the turn.

With the rain card playing on both sides of the track, various teams asked to stop for tire changes.

It was at this time that Javier, who was already ninth in the overall ranking and had been criticized since the beginning of the game, showed his strength!