"Tim Strutt" <heidi.strutt@sympatico.ca> wrote in message news:GFBBz9.Bp9@lugnet.com... (...) I can't see having any lateral clearance issues with that piece. Great! Iain (23 years ago, 22-Jun-01, to lugnet.org.ca.rtltoronto, lugnet.org.ca.parlugment, lugnet.org.ca.monlug)
(...) Note also that real railways use a "clearance envelope" that is NOT a rectangle, it has missing/rounded corners as well. So having more clearance in the center of a tunnel arch opening is very prototypical. Take a look at autoracks some time. (...) (23 years ago, 23-Jun-01, to lugnet.org.ca.rtltoronto, lugnet.org.ca.parlugment, lugnet.org.ca.monlug)
