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[quote user="Buslist"]BTW on that other board someone blamed the failure of the squeeze test sample car on the low weight requirement for these cars. They aren't that different from the California cars are they?[/quote] The bi-level coach is limited to a dry weight of 150,000lbs. I don't know how this compares to the California cars. The California cars don't have crash energy management (CEM) elements. Here is the carbody that failed the 800,000 lbs compression test: <a href="http://trn.trains.com/~/media/images/railroad-news/news-wire/2016-and-prior/2015/09/nippon.jpg?mw=1000&mh=800">http://trn.trains.com/~/media/images/railroad-news/news-wire/2016-and-prior/2015/09/nippon.jpg?mw=1000&mh=800</a> The distance between draft line and car floor together with the 800,000 lbs cause a moment that has to be carried somehow. If the floor alone is not able to carry load and moment, the side walls have to carry part of it like a monocoque. In this construction you have to fit the CEM elements without compromising the buff strength. Regards, Volker
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