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Rail - Rolling Stock (Freight) - Open Hopper - 2-Bay Offset Side

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Rail - Rolling Stock (Freight) - Open Hopper - 2-Bay Offset Side
Name Open Hopper, 2-Bay, Offset Side
Region North America
Category Rail
Type Rolling Stock (Freight)
SubType Open Hopper
Variety 2-Bay Offset Side
Manufacturer Various (Details)
Era Epoch II (1920-1945)


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History: The late 1920s saw the introduction of the AAR standard “offset-side” 50- and 70-ton hoppers. The design went through several variations in the late 1920s and early 1930s before settling on two versions of the 50-ton car and one 3-bay, 70-ton car in 1935. Most roads went for the AAR standard designs, but the N&W, VGN, and Pennsy were notable holdouts. World War II brought the famous “war emergency” hoppers (only the N&W and MP bought the 70-ton version) and several composite versions of existing designs. After the war, AC&F found some brief success with a welded outside-stake hopper design, but the weld joints broke under the stress of loading and unloading rather than flexing like riveted joints. The offset-side design also had problems: the inside stakes were more prone to corrosion, and they suffered worse from loading and unloading stress than outside-staked hoppers. The design waned in the 1950s and was all but abandoned for new cars by 1960. Some roads (notably the C&O, the B&O, and the L&N) made the best of a bad situation by rebuilding their offset-side cars with all new outside-staked sides in the late 1950s and early 1960s.

Railroad/Company: This set of items is comprised of more than one name. Please look at the component items for details on the specific roadnames and/or manufacturers.


Item Links: We found: 1 different collections associated with Rail - Rolling Stock (Freight) - Open Hopper - 2-Bay Offset Side
Item created by: gdm on 2018-04-20 08:27:10. Last edited by gdm on 2018-04-20 08:29:26

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