BLI 10607 HO Scale Big Boy 4-8-8-4 UP 4010 with As-Delivered Aftercooler 1941 Stealth DC N DL HO (PB70 #4792

HO (PB70 #4792

Detailed crew members

two drop tanks

and in 1987 Ortner Freight Car was acquired

BLI 10607 HO Scale Big Boy 4-8-8-4 UP 4010 with As-Delivered Aftercooler 1941 Stealth DC N DL HO (PB70 #4792BLI 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