This set was produced to introduce an more comprehensive set for these classes.
Beginning in 1912, the PRR introduced the H22 class, which was designed for hauling coke. A key feature of the class was its uniquely designed sides, which were built to necessitate easier loading of coke, and also try to prevent heap overloading. Starting in 1922, conversions of the H22 hoppers started to take place. The major external difference was closing off the coke gates. By October 1930, out of 4,169 cars, only 468 were H22’s, with the remainder being H22a’s. As the H22a’s started to age, some were again rebuilt, but as H21a’s. Fleet numbers diminished so much that by the mid-1940’s thee were only 1,500 cars, and by 1955, only 24 remained on the roster, the rest either scrapped or converted to an H21 subclass. None of these cars lasted to the end of the PRR in 1968.
The H22 class fell into one single numbering block, while the H22a class had many by 1930. This sheet has enough data to do 4 cars, 2 H22, or 4 H22a. There are six different reweigh/repack dates cover locations system wide and multiple re-weigh dates ranging from the early-1920’s through to the mid 1950’s.
The H22 and H22a class has been produced in plastic by Bowser.
For references in regard to the PRR's H22 Class Open Hopper Car fleet please consult Pennsylvania Railroad Steel Open Hopper Cars, by John Teichmoeller and Volumes 1-3 of the PRR Color Guide.