"indiaman - the Boeing may well take off and land but it isnt doing it continuously. the tyre can cool down and recover their composure, dont see them having much chance to do this on racing lap."
FYI, the temperature of an airliners tyre at 35000 ft is around MINUS 55 to 60 degrees Celsius, this same tyre(without the benefit of heating) has to take the shock of landing at speeds approaching 200mph, from a total standstill, then accelerate to the landing speed, and when the brakes are applied the tyres get really HOT, the normal inflation pressures are around 200PSI, the tyres are tested to 800PSI! After all this abuse they still last for 100 take offs and 100 landings, and another similar cycle after retreading! Now you tell me if I am not justified in thinking that the entire F 1 tyre business is in my opinion a big scam.I remember that about 10 years ago a set of F1 tyres of size 315 45 17 used to cost 3000 UK Pounds, god knows what they cost now. No wonder F1 is so lucrative!