4/4 Improved Dreadnaught End


In 1945, Standard Railway Equipment Manufacturing Company introduced its Improved Dreadnaught end (IDE) as a replacement for the earlier Dreadnaught end.  Box cars of 10’6” inside height received a version of this end that had 4 major corrugations in each of the top and bottom end sheets.  This design was used extensively on postwar box cars, however in 1948, SREC modified the design.  Some 28,045 box cars were built for US railroads between 1945 and 1948 with the 4/4 IDE, although the ATSF received an additional 3750 pairs which they installed on cars built in company shops in 1951-1952.  The MKT also received their one and only example of this design in 1949.  Two different polyurethane resin castings are included for the A and B ends of the car, as the prototype ends differed at the top corrugation in order to accommodate handbrake installation.  SRCC offers kits for the following roads that purchased cars with this end: ATSF, CNW, NKP, NP, NYC, and SP&S.






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