Quote:
Originally Posted by Bill Murray
Hi Chis:
This may be "Urban Legend" but I have also read that the Swiss used the rounded canvas tops to be able to navigate the"Upside down "U" shaped" tunnels found on the roads in the Swiss Alps.
Bill
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Almost, but not quite, spot on Bill. I was told the standard size / height / roof profile is so that the trucks can be freighted through the RAIL tunnels in Switzerland. The road tunnels have clearance, but you'll find on a low bed flatcar the trucks all conform to the standard rail loading / clearance guage.
Gordon