InterMountain - 67098 - Covered Hopper, 3-Bay, ACF 4650 - Dimensional Data

Model Information: This model from InterMountain features Micro-Trains trucks with truck-mounted MTL couplers. Etched metal walkways, sharp printing, and excellent detail including seprately applied hoses on the underframe as well as separately applued roof hatches. Unlike the similar Micro-Trains model, the roof hatches do not open. The InterMountain model has superior detail under the bays, though the MTL model is still quite good. Both have the bay releases as separately applied (as opposed to molded) detail parts. The end detail on the IM model also is superior showing hoses from the barrel (to the brake system?).

Prototype History: Production of the 4650-cubic foot 3-bay cars began in 1964. ACF built 2504 examples at Huntington, WV, between 1964 and 1972. The ACF 4650 c.f. 3-bay hopper was the same height and width as the 5250 c.f. 4-bay car but several feet shorter in length (and only had 3 bays!). Some railroads that were not concerned about having the larger plate C clearance 4650cf cars (which could not be used on all branchlines or at all loading facilities) opted for large fleets of 4650cf cars instead of 4600cf. UP and SP were two such railroads (all of the current UP 4600cf cars came from either MP or C&NW heritage).

Hatches: 6 30", 6 20", 3 pressed steel elongated (SP, SSW, 3 piece pressed steel continuous or 4 piece FRP continuous. Outlets: Several types of bolted or welded on outlets are used. Uses: Grain, soda ash, platic pellets. Trucks: 77 ton friction or roller bearing. 86 had 100 ton roller bearing.

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.