InterMountain - 65371-21 - Covered Hopper, 3-Bay, Thrall 4750 - Union Pacific - 87821

Model Information: Rib-side, 3-bay covered hoppers. 4750 cubic foot capacity. Features etched metal roofwalks, sharp painting and lettering, multiple road numbers per paint scheme, and metal wheels (at least for the 2017 release - earlier releases likely have plastic wheelsets).

InterMountain does not refer to a specific prototype on their website for this model, but I have seen it referred to as both a PS (Pullman-Standard) as well as a Thrall. Perhaps the model has elements of both prototypes baked into the molding? Would love to hear from a prototype expert on this one...

Prototype History: Starting around 1970 or so, every major railcar manufacturer produced a 4750 cubic foot covered hopper. Thrall was no exception. To be honest, these hoppers all look pretty similar. To make matters worse, these cars were modified as improvements were made to the design. In the case of the Thrall model, at least two major revisions were made to this car during the period in which it was produced. The cars were built starting in the late 1970s, this 263,000 lbs GRL (Gross Rail Loading) car is used primarily for grain transport. The thrall models feature 3 bays and rib sides. The roof is flat. These cars were used by the Burlington Northern in large numbers as well as by many other railroads.

Road Name History: The Union Pacific Railroad (reporting mark UP) is a freight hauling railroad that operates 8,500 locomotives over 32,100 route-miles in 23 states west of Chicago, Illinois and New Orleans, Louisiana. The Union Pacific Railroad network is the largest in the United States and employs 42,600 people. It is also one of the world's largest transportation companies.

Union Pacific Railroad is the principal operating company of Union Pacific Corporation (NYSE: UNP); both are headquartered in Omaha, Nebraska. Over the years Union Pacific Corporation has grown by acquiring other railroads, notably the Missouri Pacific, Chicago & North Western, Western Pacific, Missouri-Kansas-Texas, and the Southern Pacific (including the Denver & Rio Grande Western).

Union Pacific Corporation's main competitor is the BNSF Railway, the nation's second largest freight railroad, which also primarily services the Continental U.S. west of the Mississippi River. Together, the two railroads have a duopoly on all transcontinental freight rail lines in the U.S.

Read more on Wikipedia and on Union Pacific official website.

Brand/Importer Information: InterMountain was founded in 1985 by Fred Brummet. They got started in the model railroad business by producing O-Scale model kits. They got started in the N Scale business almost a decade later when in 1994 they introduced the 40-23 reefer car in kit form. Later, in 1998, they started producing RTR (Ready-to-Run) models. By the early 2000s, InterMountain phased out kit production in favor of the RTR models.

The InterMountain Railway company is located at 1224 Boston Ave in Longmont, CO. They are a manufacturer of HO, N and Z scale model trains. They have produced kits as well as RTR (Ready-To-Run) models. Their N Scale products include locomotives as well as rolling stock. Their rolling stock lineup includes Boxcars, Hoppers, Tank Cars, Reefers, Gondolas, Stock Cars and Flatcars.

Their locomotive releases have primarily been diesel units, with the one major exception being their series of AC-12 Cab Forward steam locos. Their diesel lineup includes F3's, F7's, F9's, SD40's, SD45's and FT units. They are known for quality and detail. They also release their rolling stock in larger varieties of road numbers than most of the other manufacturers.