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| Re: PHOTOS: Acela II at Penn Coach Yard Thursday (1585725) | |||
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Re: PHOTOS: Acela II at Penn Coach Yard Thursday |
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Posted by Jace on Mon Sep 20 12:44:52 2021, in response to Re: PHOTOS: Acela II at Penn Coach Yard Thursday, posted by Olog-hai on Mon Sep 20 12:16:31 2021. The Acela carbody design obviates the need for other structure such as heavy center sills; I'd like to see your analysis showing how much weight the tubes add compared to a more conventional center sill carbody design. The tubes give the shell a lot more structural integrity; the Acela carshells would perform a whole lot better than a conventional car if they got sideways as at Frankfort Junction. |
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