>>1254371Oh, also: axle loadings. HUGE issue in Europe. Barely even cared about in America.
Typical axle load limit in America is roughly 36 US tons (33 tonnes), but there's a push to upgrade to 39 US tons (36 tonnes). In comparison, the UIC spec is rouhly 22 US tons (20 tonnes).
So weight's never been that big a deal for us burgers either, which is... not surprising.