The American Big Boys are some of the longest and largest steam locomotives ever built anywhere in the world. During the late thirties Union Pacific often used auxiliary engines to haul trains from Ogden, Utah up a steep pass to Wasatch. Union Pacific wished to simplify this system and instructed their own development department to design a new locomotive capable of hauling a 3,600-ton train up the steep pass. The last goods train hauled by a Big Boy loco was in July 1959. Most Big Boys were retired from service in 1961. Model details: One-piece reproduction boiler; Separate butterfly damper; Detailed driver's cab; Movable pony trucks; Detailed driving wheels; Detailed driving rods; Front cow-catcher; Detailed tender with ladders; Finely detailed reproduction tracks (approx. 19 inches); and Decals for 2 Union Pacific versions.  | This plastic model kit requires plastic cement and paint for assembly, and they are sold separately. |
| WARNING: CHOKING HAZARD! Small parts. Not intended for children under 3 years of age. | | Product image and description is provided by the manufacturer, and is as accurate as possible. Some details of the product may be subject to change without notice (graphics, decoration, wheel color, etc.). eHobbies is not responsible for these changes, as it does not alter the function or value of the product. |
| Model length 18.3 inches. |
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