3 ms·

You can see my nearby thread for a more detailed look at the claim. The tl;dr: the "limiting factor" is a tunnel width of 18', against a standard US loading ga

You can see my nearby thread for a more detailed look at the claim. The tl;dr: the "limiting factor" is a tunnel width of 18', against a standard US loading gauge of 10'6", and a standard US track gauge of 4'8½" ... and the SRBs are 12' in diameter, which doesn't seem clearly limited by any of those factors whatsoever.

hi-v-rocknroll 3y ago
[flagged]
brookst 3y ago
Does the tunnel have any curved track?
- jcranmer 3y ago
  From openrailwaymap, it doesn't look like it.
  - anakaine 3y ago
    There could also be switching gear, signage, etc internal to the tunnel they had to deal with - if the claim is even valid in terms of this being the spurce of restriction on booster size.