With the Formulation One spending its well-deserved summer time break, F1Technical’s senior author Balazs Szabo explains how the game’s sole tyre producer Pirelli measures tyre put on.
Pirelli has been the only real tyre provider in Formulation One since 2011 following Bridgestone’s choice to withdraw from the position on the finish of the 2010 season.
The Italian producer beforehand competed in Formulation One from 1950–1958, 1981–1986 and 1989–1991. Along with his position at Formulation One as sole tyre provider, Pirelli additionally provides tyres for the FIA Formulation 2 Championship , FIA Formulation 3 Championship and F1 Academy, that kind the feeder sequence to Formulation One.
What does the TWI stand for?
Pirelli engineer usually use the TWI acronym which stands for Tread Put on Indicator. Identical to highway tyres, Formulation 1 slicks have a bodily indication to measure tread put on.
On their floor are six small cylindrical holes unfold throughout the width of the tyre, with various depths relying on their place. They’re numbered from one to 6, the primary one situated on the internal fringe of the tyre.
On the finish of each session, the floor the place these TWIs are situated is scraped utilizing a particular instrument to take away particles and reveal the holes. The Pirelli engineers then insert a depth gauge in each on all 4 tyres and measure how a lot the tread has worn.
This information is then in contrast and a share put on scale might be created from it, for all tyres from all vehicles, beginning clearly from zero within the case of a brand-new tyre. The groups are supplied with information from their vehicles together with suggestions for tyre use over lengthy distances.
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