you are viewing a single comment's thread
view the rest of the comments
[–] 20 points 4 months ago (5 children)

8 years doesn't sound like a healthy life span for a train. What's the flaw?

  • source
  • hideshow 5 child comments
  • [–] 43 points 4 months ago (1 child)

    The actual train is >30 years old, it was only painted like that 8 years ago. (Probably repainted a couple of times too lol)

  • source
  • parent
  • hideshow 1 child comment
  • [–] 3 points 4 months ago

    I haven't looked it up but I would bet you it's due to fatigue limits. They probably use aluminum a lot which always fatigues no matter how light the stress (a bit like me tbh...) so anything made from aluminum gets retired after a set time period.

    The same is true for jets. Each flight expands and contracts the airframe since it's a pressure vessel, and the wings can deflect a large amount too.

  • source
  • parent