Fernando Alonso says F1 drivers have to trust Pirelli to get it right with the changes being made to its tyres on the back of the British Grand Prix.

New Kevlar-belted tyres will be provided at the Nurburgring for this weekend's German Grand Prix, with Pirelli also insisting on a ban on tyre swapping and insisting that limits on both tyre pressures and camber settings should be adhered to.

Those three factors were all deemed to have been partly to blame for the failures that saw Lewis Hamilton, Felipe Massa, Jean-Eric Vergne and Sergio Perez suffer left-rear punctures during the Silverstone race.

Further changes will then be made in time for the Hungarian Grand Prix with a new tyre featuring the 2013 compound allied to the 2012 construction and Alonso said that the drivers on track had to trust Pirelli to have got things right.

"After what we saw in Silverstone, we now go to the Nurburgring, confident we can see an improvement," he said. "I know that various modifications have been applied and let's hope that means all of us drivers can race in safe conditions.

"At the moment, we can't make any predictions, because no one has tried them and we don't know what and how many benefits they can bring, apart from trusting in the fact that it won't be dangerous to race."

Teams will have the opportunity to do tyre development work during the upcoming thee-day test at Silverstone, which was originally scheduled to be the Young Driver Test before changes were implemented by the FIA.

As such, both Alonso and team-mate Massa are now set to run with Ferrari as the team works to help Pirelli deal with its current issues.

"What we saw at Silverstone certainly gives us cause to think about the safety of the drivers," Sporting Director Massimo Rivola said. "The Young Driver Test, which was scheduled to take place actually at Silverstone from 17 to 19 July, has now provided the perfect opportunity to do something about it, which both the FIA and Pirelli have jumped at. It will be very important to have this opportunity to try something new.

"Obviously, this test will be carried out with the actual race drivers, as there would be no sense in trying something new with youngsters at the wheel, who do not have the necessary experience to provide the required feedback."