Athearn 25743 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3967 DCC & Sound Xpress All 2x M2 x 3mm SSS

2x M2 x 3mm SSS (Black)

See through standard fan housings

and many served for decades

The board comes with one set of jumpers that allows you to set that particular section to reversing

Athearn 25743 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3967 DCC & Sound Xpress All 2x M2 x 3mm SSSAthearn 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