Wheels of Time 50136 N Scale 53'6" General Service Flatcar Conrail CR 715523 Roadname_AC&Y Diecast Masters Track Drive Gearbox

Diecast Masters Track Drive Gearbox (Right Hand Side) for 1/20 Scale RC CAT 330D Excavator

Bowser 42640 HO Scale 2 Bay GLa Hopper Pennsylvania "Early"  PRR 263655

This is the 5056751 #221 FD-03 Gustav Karl (Unicorn Ver)

and we created an entirely new set of well-illustrated fully explained instructions covering the building process

Wheels of Time 50136 N Scale 53'6" General Service Flatcar Conrail CR 715523 Roadname_AC&Y Diecast Masters Track Drive GearboxWheels of Time 50136 N Scale 53'6" General Service Flatcar Conrail CR 715523 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 frame.