Wheels of Time 50139 N Scale 53'6" General Service Flatcar Southern Pacific SP 507727 Roadname_PW Safe to use

Safe to use

This increased height meant a new body was required

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Wheels of Time 50139 N Scale 53'6" General Service Flatcar Southern Pacific SP 507727 Roadname_PW Safe to useWheels of Time 50139 N Scale 53'6" General Service Flatcar Southern Pacific SP 507727 These 53' 6" flatcars were constructed with a welded fish belly steel frame in contrast to the cast steel GSI frame. The fish belly frame provided an optimal distribution of tension and compression forces from the center of the car to the bolsters. Think of it as a bridge. In addition, fabricating a welded frame was far less labor intensive than an equivalent riveted