Wheels of Time 50143 N Scale 53'6" General Service Flatcar Southern Pacific SP 507769 Auto Unloading These bridges are designed to

These bridges are designed to be used with Bachmann E-Z Track

Vote Straight

FITTED SPUR MATERIAL: Metal

Etched metal walkways

Wheels of Time 50143 N Scale 53'6" General Service Flatcar Southern Pacific SP 507769 Auto Unloading These bridges are designed toWheels of Time 50143 N Scale 53'6" General Service Flatcar Southern Pacific SP 507769 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