Athearn 25744 N Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3976 DCC & Sound FiftyNine plus the ability to fasten

plus the ability to fasten load restraints almost anywhere in the car

Enlarged and oversized control surfaces for added control and capabilities

Interior bracing

applied graphics

4 Walls and Roof

Athearn 25744 N Scale 4-6-6-4 Challenger w/Oil Tender Union Pacific UP 3976 DCC & Sound FiftyNine plus the ability to fastenAthearn 25744 N Scale 4 6 6 4 Challenger w Oil Tender Union Pacific UP 3976 DCC & Sound The name "Challenger" was given to steam locomotives with a 4 6 6 4 wheel arrangement. This means that they have four wheels in the leading pilot truck, which helps guide the locomotive into curves, two sets of six driving wheels, and finally four trailing wheels, which support the rear of the engine and its massive firebox. Each set of six driving wheels is driven