wjstix posted:I can't prove that it's true, but I recall reading that one reason why smaller (16 ton) freight cars lasted so long in Britain was because it was the maximum a horse could pull, and as noted horse 'shunters' lasted into the mid-20th century in some areas of the U.K.
If you check the video links on the first page, I think it's mentioned there.
16 tons, and what do you get?