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Mercedes explains F1 Japan one-stop technique try

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Russell and Hamilton completed seventh and ninth respectively, reversing their qualifying positions, after a poor qualifying session and troublesome first stint on the laborious tyres prevented them from preventing additional forward.

On the restart after a lap one purple flag, Mercedes determined to place each of its drivers on new laborious tyres to aim a daring one-stop technique on the demanding Suzuka circuit.

However its poor tempo, significantly over the second half of the stint, ensured that it quickly needed to bail out of that plan and convert to a two-stopper, with each Hamilton and Russell bolting on mediums for the ultimate third of the race as they had been unable to maneuver up.

Explaining why Mercedes went for the one-stop, which among the many frontrunners was solely achieved by Ferrari’s Charles Leclerc, the group mentioned it was making an attempt to do one thing totally different than the automobiles forward.

The truth that it had two units of recent laborious tyres obtainable, and successfully had already performed its required lap on a unique compound by beginning on mediums, made a one-stop look extra achievable and attractive than making an attempt to do it on medium-hard.

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“Principally, we thought that may be a solution to be a bit totally different,” Mercedes trackside engineering director Andrew Shovlin defined.

“The groups within the prime ten that had two hards, that was us and McLaren. Pink Bull and Ferrari
had two of the mediums and at that time there wasn’t actually sufficient info to
understand how that arduous and medium had been going to match.

Lewis Hamilton, Mercedes F1 W15, George Russell, Mercedes F1 W15

Picture by: Steve Etherington / Motorsport Images

“It could actually be a better method of attaining a one-stop with two hards than with a medium and a tough and due to that purple flag we would already run the medium.

“Then wanting additional down the grid there wasn’t actually any menace from the opposite groups. They had been slower than us and never more likely to work together, so actually it was about offsetting.”

However whereas Leclerc pulled off his one-stopper to climb from eighth to fourth, each Russell and Hamilton struggled for tempo as their first laborious stint went on, with Hamilton’s woes compounded by selecting up some injury on the restart that affected his automotive steadiness.

“The difficulty was that the tip of our laborious stint wasn’t adequate. We had been dropping off. We misplaced a good bit of time in visitors however basically we weren’t fast sufficient and we’re simply making an attempt to know that now,” Shovlin defined.

“The tyres in Suzuka run fairly sizzling. There is a little bit of overheating and while you get some visitors it simply drops the grip, causes a bit extra sliding and particularly we had been combating the slower corners.

“There is a hairpin, the sluggish chicane as nicely. That was the place we had been shedding a good chunk of that point. It was troublesome to get the automotive turned and it was simply costing us a bit in each of these corners. After which clearly because the tyres are simply getting older the sliding goes up and the temperatures get a bit larger and that was simply compounding it.”

Mercedes remains to be looking for solutions as to why its first stint went so fallacious, as its second stint on the laborious and its last run on mediums proved way more aggressive and extra in step with what Ferrari and McLaren had been doing.

“I would not say we have got a whole understanding of that situation now. It is clearly very quickly after the race,” added Shovlin.

“That is one of many jobs that we’ll be moving into within the subsequent few days making an attempt to work out precisely what occurred and why we dropped off a lot greater than as an example Leclerc, who did an excellent first stint that was lots longer.”



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