Nitrogen in tires

[Mark_888]

We don't know; I'm sure the engineers do. However, I can't see the tires warming up completely to the ambient temp at landing. Then, after landing, the brakes heat up the tires quite a bit. What most would consider a pretty big shift in temperature.

Tires get warm rather quickly when they hit the pavement at high speeds and the tread squirm and friction causes heat. So I would think they would heat up significantly by the time the plane stops (plus the effect of the brakes as you mentioned). According to the article I read, commercial airline tires use about 200 PSI, so that might make them behave a lot differently than auto tires.

 

[pilotdane]

That significant brake and tire heating on landing is one factor driving the minimum turnaround times on the ground. I have read that Southwest decided to stay with old fashioned iron brake disks because the carbon ones cooled down more slowly.

And as for aircraft tires behaving differently I don't know so much about that but I know they get treated differently. One day with heavy crosswinds I looked at the tires after landing and was surprised at the deep scratches at quite an angle on one wheel. I had planted one wheel to get some bite before aligning the plane with the runway and boy did the tire catch hell being dragged sorta sideways at high speed.

 

[Philth]

That significant brake and tire heating on landing is one factor driving the minimum turnaround times on the ground. I have read that Southwest decided to stay with old fashioned iron brake disks because the carbon ones cooled down more slowly.

And as for aircraft tires behaving differently I don't know so much about that but I know they get treated differently. One day with heavy crosswinds I looked at the tires after landing and was surprised at the deep scratches at quite an angle on one wheel. I had planted one wheel to get some bite before aligning the plane with the runway and boy did the tire catch hell being dragged sorta sideways at high speed.

We had a guy abort takeoff (eng fire light) just before decision speed and locked up the carbon brakes on the left wheel--permanently. Dragged the left main all the way into chalks...roughly 1/4 mile. Was both a scary and comical sight at the same time.