Athearn 25743 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3967 DCC & Sound Xpress All See through standard fan housings

See through standard fan housings

BNSF Railway #793683

The amazing linkage-based suspension and hard-anodized GTR shocks deliver seemingly bottomless suspension travel that simulates the handling and jumping ability of full-size Pro 4X4 trucks

and many served for decades

Athearn 25743 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3967 DCC & Sound Xpress All See through standard fan housingsAthearn 25743 N Scale 4 6 6 4 Challenger w Coal Tender UP 3967 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 by two steam