BLI 10611 HO Scale Big Boy 4-8-8-4 UP 4022 with Wilson Aftercooler 1944 Stealth DC Clear Body Mud Boss Chassis Structure/Material: Composite tub

Chassis Structure/Material: Composite tub

Business car

3% or 4% grades

Running Feet: 2-Lane

93oz (310g)

BLI 10611 HO Scale Big Boy 4-8-8-4 UP 4022 with Wilson Aftercooler 1944 Stealth DC Clear Body Mud Boss Chassis Structure/Material: Composite tubBLI 10611 HO Scale Big Boy 4 8 8 4 UP 4022 with Wilson Aftercooler 1944 Stealth DC When railfans think of big steam, one locomotive almost always comes to mind: the Big Boy. Often regarded as the largest steam locomotive ever builtand certainly a contender for the world's most famous locomotivethe Big Boy was created to meet some of the most demanding operating requirements ever placed on a steam engine. The Union Pacific Railroad needed a locomotive