BLI 10607 HO Scale Big Boy 4-8-8-4 UP 4010 with As-Delivered Aftercooler 1941 Stealth DC Sub Terrain These included a few limited

These included a few limited variations

Slipper Shaft Cup x1

a backpack with an Aile Striker

Suitable for other sub micro servo applications

BLI 10607 HO Scale Big Boy 4-8-8-4 UP 4010 with As-Delivered Aftercooler 1941 Stealth DC Sub Terrain These included a few limitedBLI 10607 HO Scale Big Boy 4 8 8 4 UP 4010 with As Delivered Aftercooler 1941 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