30-1922-1 UNION PACIFIC BIG BOY #4012 “STEAMTOWN USA” W/ COAL TENDER-O QuickBooks Due to the size and

Due to the size and shape of this item

In a matter of minutes the car is filled to capacity and loading begins on the next

About Atlas Master Line Locomotives:

• Minimum diameter curve: O-36 (3-Rail)

' although puppy has other plans

30-1922-1 UNION PACIFIC BIG BOY #4012 “STEAMTOWN USA” W/ COAL TENDER-O QuickBooks Due to the size andJust 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 &