Re: chlorine cannister flats (was Virginia Chemical Tank Cars)
Ed Hawkins
Tim, ACF wasn’t the only builder of cars of this type that were primarily used for chlorine containers. ACF records document the company built approximately 350 "Multi-Unit Tank Cars" from 1924 to 1958 comprised of 87 orders having lot numbers assigned. Roughly half of the cars were built before 1940 with the largest pre-1940 order being 16 cars. Ten of these cars were built “for stock” for the U.S.A. Chief of Engineers. I don’t know the disposition of these lot 2370 cars built in July 1941. Six ACF builder photos of these cars are on the Barriger Flickr web site with 3/4-views & “B” end views of 3 of the earliest cars - lot 10, MALX 365; lot 188, VSX 204; lot 401, GWEX 4?? (angled view hides car number). List of ACF M-U tank cars by reporting marks to include the quantity of cars, number of orders, and range of build dates: ACCX - 10 cars, 4 lots 1926-1935 ACF - 10 cars, 1 lot, built 1941 (U.S.A. Chief of Engineers) BAKX - 2 cars, 2 lots 1931-1932 BCX - 7 cars, 3 lots 1926-1931 CACX (or possibly PPGX) - 21 cars, 2 lots 1936-1937 CALX - 3 cars, 3 lots 1927-1934 CILX (Canada) - 2 cars, 2 lots 1932, 1945 DAX - 23 cars, 11 lots 1928-1946 DUPX - 15 cars, 3 lots 1926-1933 GCX - 26 cars, 1 lot, built 1948 GWEX - 8 cars, 2 lots 1927-1928 HOKX - 8 cars, 2 lots 1925-1926 MALX - 10 cars, 1 lot, built 1925 MONX - 7 cars, 3 lots 1932-1936 PSMX - 32 cars, 12 lots 1924-1948 SHPX - 101 cars, 16 lots 1937-1948 (lessees - Westvaco, DuPont, Diamond Chemical, likely others) SPX - 44 cars, 11 lots 1927-1948 TELX - 1 car, 1 lot, built 1930 TENX - 4 cars, 1 lot, built 1949 (for sulphur dioxide containers) VSX - 15 cars, 5 lots 1924-1929 WCX - 1 car, 1 lot, built 1930? (unsure about this order) Regards, Ed Hawkins
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