Tyre Life Question
 

A question for perhaps an engineer, but interested to know the typical tyre life on an aircraft such as a B737 for example. Also conditions which would reduce significantly reduce it's service life.

Can't remember but the things seem to get retreaded forever. Ultrasonic inspection after each retread.

Heat and overloading I seem to recall are the big killers of tyres.

tyres
 

Main landing gear tyres on the B733 last about 3 months, depending on average weights. Nose gear tyres dont last that long as they are very suseptable to side loadings and flat spots causing vibrations. They are retreaded in Victoria, and have a life of about 5 years. Most airlines now only lease the tyres from the manufacturer, and pay what they use.

Sunfish is correct that heat and overloading is the big killer of tyres. Taxi at high speed at high weight is the worst condition for tyres causing high side wall tempratures that can destroy a tyre.