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Wet testing planned in Barcelona as Pirelli reveal tyre rules

F1's three-day pre-season test in Barcelona will include at least half a day of mandatory wet-weather running, Pirelli have confirmed.

The final half-day of this week's F1 track action in Barcelona will be given over to wet-weather tyre testing, meaning drivers will be required to run the new Pirelli Intermediate and Wet compounds. The full tyre rules for the three days of pre-season testing in Barcelona have been outlined by Pirelli, which includes the mandatory half-day given over to testing of the new 18-inch wet-weather compounds. The plan is for the track to be artificially dampened during Friday's lunch-time break, with water trucks heading out to ensure wet running through the afternoon. As it stands, the chance of rainfall naturally dampening the track for the planned timeslot stands at 60 to 70 per cent. Pirelli have confirmed that, should a half-day of running take place in wet conditions at another point prior to Friday afternoon, the planned wet session on Friday afternoon will be cancelled. For the entire three-day test, each team will be given up to three sets of the green-marked Intermediates, as well as the blue-marked full Wet tyre.

Pirelli reveal dry-tyre allocation

Each team will be given 30 sets of Pirelli tyres for use over the course of the three days, with the teams able to choose from an allocation of 35 slick sets. The range runs from the C1 white-marked tyre, the hardest of the range, to the C5 red-marked tyre as the softest. Teams will be given free choice of the slick compounds to use, with these choices being kept confidential. If a team makes use of a set of Intermediate or Wet tyres, these will be taken from their full allocation of 30. Each team is permitted to selected more sets of Intermediate and Wet tyres, but these will then be taken out of the 35 set dry tyre allocation available. This will thus reduce the amount of slick compound sets available to the team.

Tyre technical details are confirmed

Pirelli have also confirmed details such as the minimum starting pressures for each type of tyre, the minimum and maximum tyre camber limits that will be enforced, as well as the maximum heating times and temperatures – all of which can be viewed on the infographic below.

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