and link coupler and end bumpers.
The equipment of the fleet is
designed so that it can also use the standard automatic U.S. coupler.
Figure 2.1.
Typical Railway Truck.
2.8.
UNDERFRAMES
Equipment of the fleet uses steel underframes completely
fabricated and drilled at carbuilders' shops in the United States.
All underframes for flatcars, gondolas, and boxcars are assembled in
the same way. Wooden plank flooring is laid over the underframe.
2.9.
SUPERSTRUCTURE
Made generally of wood with metal reinforcement bars, the
superstructure units provide only rigidity. They are not designed to
support any appreciable amount of the weight of the lading.
The
superstructure units are prefabricated, punched, and drilled for
rapid assembly.
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