Getty Images Enlarge Pirelli does not think it has a realistic time frame to develop tyres that will operate safely without blankets for next year. From 2015 the use of tyre blankets will be banned under the regulations, creating a significant challenge for F1's tyre supplier Pirelli. The bigger variation in temperature between when the tyres go on the car and when they are up to running temperature creates a wider variation in tyre pressure, and Pirelli motorsport boss Paul Hembery has warned that it will take time to develop a tyre that can cope. "It's more to do with stopping a tyre becoming a balloon and being undrivable or dangerous," he said. "That's the biggest issue...
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