N KATO Union Pacific Big Boy Steam Locomotive Options:Pre-Installed DCC Movement & Recoil: Offers a

Movement & Recoil: Offers a full range of movement

The output of the AS-1 is continuously variable from 0 up to within 3 volts less than the input voltage

Assembly type tracks use single-piece straight sections

Dimensions - 11

N KATO Union Pacific Big Boy Steam Locomotive Options:Pre-Installed DCC Movement & Recoil: Offers aN KATO Union Pacific Big Boy Steam Locomotive Prototype Information: The 4 8 8 4 Big Boy is an articulated Steam Engine manufactured by the American Locomotive Company between 1941 and 1944. The Union Pacific was the sole purchaser of these engines, owning and operating a total of 25 of the colossal 600 ton engines. The 4 8 8 4 wheel arrangement combined stability and power, with the four wheel leading truck allowing for smoother entry into curves