Athearn 25743 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3967 DCC & Sound Xpress All Length over the buffers 30

Length over the buffers 30 cm / 11-13/16"

2x M2 x 3mm SSS (Black)

Mon-Tech Racing ZERO2 Fifty Gram Edition Touring car 190mm

BNSF Railway #793683

Speed readout not affected by gear ratio or tire-size

Athearn 25743 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3967 DCC & Sound Xpress All Length over the buffers 30Athearn 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