Fifty 70 ft box-express cars put into service by Missouri Pacific are said to be longest cars of BX classification; design of new cars closely follows freight-car construction; all-welded underframe is OH steel; center sill consists of 2 AAR Z-26, 36.2 lb USS Tri-Ten sections welded full length; Tri-Ten was used because calculated stresses were such that 50,000 lb yield point was required.
MP builds high-capacity box-express cars
Ry Locomotives Cars
Railway Locomotives and Cars ; 137 , n 4
1963
Article (Journal)
English
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