21 July 2012
Pirelli evaluation thwarted by rain - again
Pirelli's attempts to gather data on its latest hard compound tyre were again largely thwarted by the weather at Hockenheim.
Just two weeks after rain interrupted free practice at Silverstone, showers for the first two free practice sessions of the German Grand Prix continued to deny Pirelli a clean run at evaluating its new hard compound dry tyre.
At Hockenheim, however, there was some dry running in the morning, enabling the teams to gather limited information about the experimental tyre, which was tested in free practice along with the usual allocation of eleven sets of slick tyres for the weekend. The compounds nominated for the German Grand Prix are the medium and soft, with the experimental tyres having to be returned on Friday evening, meaning that there can be no further running on them for the rest of the weekend.
“After the British Grand Prix, most people had seen enough rain, but it was back!" motorsport director Paul Hembery commented, "This morning was a very different situation to Silverstone though, with the track drying up rapidly between showers – it was not quite wet enough for the intermediate tyre – and there was some dry running as well. The afternoon was much wetter, but this very wide range of conditions allowed teams to assess the crossover point between slicks, intermediates and wets, which could be vital information for qualifying in particular.
"We have never competed at Hockenheim in F1 before, so it was important to try and gain as much information as possible – particularly because we had three slick compounds running today for the first time this year. The variable conditions meant that the drivers were not able to draw many firm conclusions about the experimental tyre, but with more changeable weather expected tomorrow, this was far from being a wasted day in terms of information gathered”.
The intermittent showers during FP1 meant that teams were often restricted to ten-minute runs, before the changing conditions made it too complex to properly evaluate tyres and parts. The teams tried the experimental hard and the medium slick tyres in the morning, while the two Sauber drivers, as well as McLaren's Lewis Hamilton, also ran on the intermediate. The fastest time of the morning was set by McLaren driver Jenson Button, who established a benchmark of 1min 16.595secs on the medium tyre at the very beginning of the session, when the track was dry. He beat Hamilton in the runner-up spot by half a second, the second McLaren setting its time when the track dried out at the end of the session on an identical tyre.
The teams had planned to run on the soft tyre in the afternoon, in conditions that should theoretically be closer matched to the race, but the rain fell even harder. This meant that the majority of drivers did not venture out until the last hour of the 90-minute session in order to avoid the worst of the standing water, running on the full wet tyre. As the track dried, the drivers progressively moved onto the intermediate tyre, with Mercedes driver Nico Rosberg the first to make the switch and immediately going quickest. More rain fell in the last half hour, meaning that nobody got the chance to run on the slicks in the afternoon.
With conditions never drying out fully, Williams driver Pastor Maldonado set the fastest time of 1min 27.476secs in free practice two on the intermediate tyre - more than ten seconds slower than Button's time in the morning. The session was red-flagged with five minutes to go after Michael Schumacher went off in his Mercedes.
Conditions are expected still to be wet for qualifying, but the race on Sunday, as at Silverstone, should be held in dry conditions, meaning that many drivers could be heading into the grand prix with very little dry running behind them at Hockenheim, particularly on the soft tyre.
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