How many landings before an a380 tyres have to be changed?

Answer 1

Well there's no specific answer for this. there might be an average but it depends a lot on how heavy the aircraft is when it lands, how often it flies (and how long the flights are, shorter flights=more landings and take offs). And this is also a common misconception: the stereotypical large aircraft (aka airliner) landing includes a few screeches and a poof of smoke right when the tires touch down. however, contrary to popular belief, this is not what does the most damage to an aircraft tire. taxiing and high speed rolling does exponentially more wear damage to tires because when they first touch down, the weight of the entire aircraft hasn't landed on them yet, it's still suspended slightly in the air and doesn't actually settle completely on the wheels until the aircraft has slowed to about half it's landing speed, e.g. 747-400 fully loaded is about 150-160 mph landing speed. So point being, there are hundreds of different variables that affect aircraft tire life and not all the tires get changed at the same time. it is very rare to have more than two or three tires on large aircraft to wear at the same rate.