"We're more than 15 seconds ahead of second-place Sebastian Vettel and you've had a perfect pit stop window. Pen & Fun & Pavilion www.biquge.info" Ross Brown's voice rang out in the headphones.

The length of the pit lane of each track is different, and the amount of fuel for each pit stop refueling is also different, so the time of the pit stop will also be different, starting from entering the pit lane, stopping to change the station to refuel, and then out of the pit area, at least it takes more than 20 seconds, the pit area and the big straight are basically parallel, after a pit lane is equivalent to running through the end of the big straight, that is, the distance in the pit lane can also be regarded as the track to the distance, but the stop start and the speed limit in the pit area will lose some time.

The advantage of 15 seconds in the race, as long as the refueling time is controlled to about 10 seconds, can basically ensure that after refueling out of the pit area, it will still be in front of the opponent. This is known as the "perfect pit stop window".

To put it simply, if Zhang Guan pits now to refuel and change tires, he will still be in front of second-place Vettel after he comes out, but when he finishes refueling, the 15-second advantage will almost be lost.

"Do I need to go back and refuel, then?" Zhang Guan asked.

"Of course not!" Ross Brown went on to say, "As long as your tires and fuel can hold up at the moment, keep running." Take advantage of the light light of the car with less fuel, refresh a few more fastest laps, and strive to expand the advantage! It's best if we let Vettel stand first. Oh, wait a minute, Vettel has come to the pit stop to refuel! In this way, we have a very big advantage. ”

On lap 17, Vettel opted for a pit stop to refuel and change his tyres. It took him 11.6 seconds to refuel, which is probably less than 20 laps.

On lap 18, Williams Racing driver Kazuki Narumhima was out of the corner, and the front of the car hit the protective wall directly, scattering debris and showing a yellow flag for the stage.

There is a yellow flag is not allowed to overtake, the yellow flag is not allowed to overtake in this stage, and the yellow flag is not allowed to overtake the whole field, often at that time the safety car will come out to lead everyone to run the circle. The yellow flag of the stage generally indicates that there is an emergency situation in a certain stage, such as a crash, standing water, foreign objects, etc.

If a red flag is shown, it is often a serious situation, and all the cars must return to the pit lane the next time they pass through the pit entrance.

The blue flag is given to the lapped drivers, telling them to let the fast cars run first. The black flag is directly sent out of the game.

In order to make it easier for drivers to know these situations, there are often lights on the driver's steering wheel to remind them, such as when the stage is yellow flag, and when entering a stage where overtaking is not possible, the light will turn on to remind the driver.

Kazuki Nakajima, who crashed this time, knew by his name that he was a Japanese driver, who joined the Williams team with a sponsorship contract, and he paid for it when others came to drive the car for wages. In terms of driving style, Kazuki Nakajima is very fierce and tough. So he had an accident and crashed, more because of his driving style.

In fact, Japanese drivers have similar driving styles in Formula 1, and they are all very daring to fight, such as overtaking, sometimes winning and surpassing, and losing is a collision. Therefore, the previous two Japanese drivers, Takuma Sato and Yamamoto Sakujin, were both road killers, and their finishing rate was less than two-thirds, such as being unwilling to give way to the blue flag when they were torn over, which was what Japanese drivers did.

At this time, although Zhang Guan had not yet reached the yellow flag stage, Ross Brown had already opened his mouth to remind: "To tell you the bad news, there was an accident ahead, and Kazuki Nakajima of the Williams team crashed." ”

"Is it serious? Will there be a safety car? Zhang Guan asked.

"There is a lot of debris, maybe it is really possible to get out of the safety car, and the next time you pass by the entrance of the pit station, come in and refuel!" Ross Brown's voice grew quicker.

At this time, Zhang Guan is not the only one who chooses to pit for refueling, and other cars that have not yet pit also choose to pit for refueling at this time. The yellow flag affects the speed of the car and of course the drivers, so it is better to go into the pits to refuel and let the staff clean the debris of the car from the track. So even some of the slow trains that were at the back of the queue chose to pit at this time.

Zhang Guan was still in first place when he ran out of the pits, and the advantage he had accumulated was big enough that Sebastian Vettel was still 15 seconds away from him in second place.

On lap 20, the safety car was dispatched, which was extremely bad news for Zhang Guan. And for the cars that want to catch up, it's good news.

The rules require that after the safety car is dispatched, it will get stuck in front of the first place, and all cars are not allowed to overtake, and must follow behind the safety car according to their position. However, the speed of the safety car is much slower, so the car behind will quickly catch up with the car in front, basically the appearance of the safety car, which means that all the advantages achieved by the leader in the past are instantly wiped out.

After the safety car let go of the slow car, he found Zhang Guan, who was in first place, and then began to lead in front of Zhang Guan, Zhang Guan's speed slowed down instantly, and he could only turn on the fuel economy mode to follow the safety car, and the car behind quickly caught up.

In second place was still Red Bull's Sebastian Vettel, in third place was Ferrari's Massa, in fourth place was BMW's Kubica, and in fifth place was Ferrari's Raikkonen. The cars behind also followed, and the eighteen cars formed a long snake formation, and even those cars that had been lapped were once again at the end of the group.

Zhang Guan's mood is a little bad, he used to have a huge advantage, but now it is all in vain because of the appearance of the safety car. He was back to the way he had at the start, and the first 20 laps had been wasted.

"When the safety car leaves, pay attention to the Ferrari, they have a kinetic energy recovery system." Ross Brown's voice rang out of the headphones again.

In the static start just now, Ferrari was originally in 7th and 9th, with 80 extra horsepower of the kinetic energy recovery system rushed to 4th and 5th, but now it is a dynamic start, the advantage of the kinetic energy recovery system will be greater, and now Ferrari is in 3rd and 5th respectively, it is absolutely possible to threaten the first place Zhang Guan.

……

"This safety car opened our eyes to opportunities. We were more than fifteen seconds behind Zhang Guan just now, and now with this safety car, we have erased that gap. Red Bull Racing's strategy engineer said into the microphone.

"Yes, we're back on the same page again." Vettel's voice was excited: "I like this variable. (To be continued.) )