20-30145-1 UNION PACIFIC BIG BOY AS-BUILT WITH COAL TENDER #4014-O QuickBooks single-throw on/off switches in parallel

single-throw on/off switches in parallel

Highly detailed one-piece body simulates double-sheathed construction

8 inch clearance

Often decorated in subdued earth tones

Seuthe Large smoke generator unit with hose and connectors

20-30145-1 UNION PACIFIC BIG BOY AS-BUILT WITH COAL TENDER #4014-O QuickBooks single-throw on/off switches in parallelJust months before Pearl Harbor, the American Locomotive Company delivered the first Big Boy to the Union Pacific Railroad. The UP's Department of Research and Mechanical Standards had designed the locomotive for a specific task: to pull a 3600 ton train unassisted over the Wasatch Mountains in Utah. While the Big Boy is often cited as the biggest steam locomotive ever built, in fact it is not. The Norfolk & Western's Y6 and A, the Duluth Missabe &