Rapido Trains 142001A HO Scale USRA Single Sheathed Boxcar Ann Arbor #Varies Era_1906 + Improvements over the C424 included

Improvements over the C424 included a higher capacity main generator

Cooling water is routed through the innovative speed control case and then into a unique sealed motor jacket that allows cooling water to flow directly against the motor for maximum possible heat transfer

but the rest of the body is clear

The shaft-driven 4WD layout uses TB-05 design oil-filled gear differentials for smooth

Rapido Trains 142001A HO Scale USRA Single Sheathed Boxcar Ann Arbor #Varies Era_1906 + Improvements over the C424 includedRapido Trains 142001A HO Scale USRA Single Sheathed Boxcar Ann Arbor #Varies During World War I the US railroads were struggling to keep up with wartime traffic, in part because of a shortage of serviceable freight cars. In an attempt to solve this problem, President Wilson nationalized the railroads under the United States Railway Administration, or USRA. One of the first tasks assigned to the USRA was to develop common designs for new freight cars.