BLI 10604 HO Scale Big Boy 4-8-8-4 UP 4014 with Smoke Deflectors 2025 Paragon4 DCC Yeti XL Optional gyro unit MZW446 (sold

Optional gyro unit MZW446 (sold separately) set can be installed

6x Base of Double Track Catenary Pole

This is a set of Losi 67x30mm Rear V1 Performance Tires with Foams

Off the layout

BLI 10604 HO Scale Big Boy 4-8-8-4 UP 4014 with Smoke Deflectors 2025 Paragon4 DCC Yeti XL Optional gyro unit MZW446 (soldBLI 10604 HO Scale Big Boy 4 8 8 4 UP 4014 with Smoke Deflectors 2025 Paragon4 DCC 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