InterMountain - 65286 - Covered Hopper, 3-Bay, Thrall 4750 - Dimensional Data

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: "Dimensional Data" here means painted models with printed body specifications and no road/reporting letters/marks or road Name/livery. The data typically consists of internal and external dimensions, capacities, weight information and specific characteristics of freight cars, trailers and containers.

The Association of American Railroads (AAR) sets standards for the uniform marking of freight cars with regard to car ownership, weight, load capacity, dimensions, and maintenance. In addition, car owners choose to display data relating to various devices and equipment so the cars may be properly used and repaired.

CAPY (nominal capacity) is the intended load-carrying capacity of the car, to the nearest 1000 pounds. This is determined by the structural strength of the car's underframe and the size of the journal bearings of the car's trucks.

LD LMT (load limit) is the maximum weight of lading that can be carried by the car, to the nearest 100 pounds. This is determined by subtracting the weight of the car when empty from the total allowable gross weight given the size of the car's journal bearings. The load limit for a car is usually a bit greater than its capacity; the two figures can be equal, but capacity can never exceed load limit.

LT WT (light, or empty, weight) is the weight of the car when empty. Accompanying the light weight marking is a date indicating when the railroad or owner last verified the car's weight. The letters for this mark are not always reporting marks; sometimes a location code is used. NEW and a date indicates that the weight shown is the car's as-built weight, and that it hasn't been field-checked since.

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.