Re: Wood coal and ore hoppers
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They differ a little, but the photos of the two CPR types together do not show much difference in height. I do not know the reason for building two versions of essentially the same car, but note that 22' nominal length was fairly standard for Lake Superior ore cars, both in the iron and copper districts. This was dictated by the spacing of ore pockets at the iron ore shipping docks, at 12' centers, which was set very early, and spread through reassignment of obsolete ore cars.