The mighty Big Boy locomotives were among the largest steam engines ever built, created by Union Pacific to haul heavy freight over the steep Wasatch Pass without helper engines. Built in two groups (1941 and 1944), they served until the late 1950s and remain icons of American railroading.

Features:

• One-piece boiler

• Separate smoke flap

• Detailed driver’s cab

• Movable steering frames

• Detailed drive wheels and linkage

• Front protection grille

• Coal tender with ladders

• Track section (approx. 48 cm)

• Decals for two Union Pacific versions

• Base colours included