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Superliner I vs II Trucks

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  • Member since
    December 2018
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Posted by JPS1 on Thursday, June 17, 2021 1:48 PM

Overmod
 My understanding was that the WU trucks were somewhat more fragile in service, and more expensive to repair.  I also had the impression the WU trucks were 'kinder' to the track in some respects than the GSI design -- I think they have lower unsprung mass and more defined lateral control. 

Thanks!  I was hoping someone with an engineering background would respond. 

As a matter of interest, what type of engineer are you or were you, i.e., electrical, mechanical, civil, etc.?

Your extensive knowledge suggests that you spent a lot of time working for a railroad or a consulting firm that had a lot of railroad clients.   

  • Member since
    September 2003
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Posted by Overmod on Thursday, June 17, 2021 3:18 AM

My understanding was that the WU trucks were somewhat more fragile in service, and more expensive to repair.  I also had the impression the WU trucks were 'kinder' to the track in some respects than the GSI design -- I think they have lower unsprung mass and more defined lateral control.

  • Member since
    May 2003
  • From: US
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Posted by BaltACD on Wednesday, June 16, 2021 9:31 PM

JPS1
Amtrak’s Superliner I cars ride on Waggon Union trucks.  The Superliner II cars ride on GSI trucks.  Other than design, what is the difference.  I have been on both cars.  I don’t feel any difference.

Is that good or bad?

Never too old to have a happy childhood!

              

  • Member since
    December 2018
  • 865 posts
Superliner I vs II Trucks
Posted by JPS1 on Wednesday, June 16, 2021 8:41 PM
Amtrak’s Superliner I cars ride on Waggon Union trucks.  The Superliner II cars ride on GSI trucks.  Other than design, what is the difference.  I have been on both cars.  I don’t feel any difference. 

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