AZL - 91929-2 - Covered Hopper, 3-Bay, PS-2 - Great Northern - 171645

Model Information: Covered hoppers are designed for carrying dry bulk loads, varying from grain to products such as sand and clay. The cover protects the loads from the weather. Similar to an open hopper car, covered hoppers tend to contain 2, 3 or 4 separated bays. Each of these can be loaded and emptied individually, with access at the top to load the materials and visible chutes at the bottom for unloading.
Hoppers with 2, 3 or 4 bays are used for different purposes: 2 bay hoppers are used for the most dense loads (such as sand), while 4 bay hoppers are more suited to lighter loads. This is due to axle load limits, for example dry cement is very heavy in bulk quantities and a 4-bay hopper of sand would be very likely to exceed these limits while also having problems with increased strain upon the central span. By trading off cubic capacity 2 bay hoppers are able to transport these heavy loads. As technology has advanced, some of the heavier loads formerly assigned to 2-bay hoppers have been assigned to larger, more efficient 3-bay hoppers.

Prototype History: Like their PS-1 boxcars, PS-5 gondolas and other car designs, Pullman Standard applied the PS-2 classification to all of its covered hoppers. Pullman Standard built covered hoppers in many sizes and configurations. But say “PS-2” to railfans and it is this particular car that usually first comes to mind. The 2003 cubic foot car was one of the first, smallest and prolific of the PS-2 cars.

Pullman began building its standardized freight car designs with the PS-1 boxcar in 1947. Next up would be a standard covered hopper – hence PS-2 – shortly thereafter. Although covered hoppers are among the most common cars on the rails today, in 1947 they were a rarity. The PS-2’s primary competition wasn’t other covered hopper designs but boxcars. Grain, cement, sand and dried chemicals were carried mostly in boxcars prior to the 1950s either in sacks and bags or poured in bulk through hatches in the roof. The theory here was that it made more sense to utilize a single car for a variety of products. The car could carry bags of cement one way and then cut lumber the other. Of course a car that could do many things often couldn’t do many of them well.

Road Name History: The Great Northern was born in 1881 with the consolidation of several railroads of the northern plains under the leadership of James J. Hill. By 1893, the mainline from the Great Lakes and the Mississippi River to Seattle was complete.

The GN had two distinctly different characters. The eastern half was a largely flat, grain producing region serving cities like Fargo, the Twin Cities, Grand Forks, Duluth, Sioux Falls, Sioux City and even Winnipeg in Canada. The east end also included the iron ore rich regions of Minnesota. Half of North Dakota was blanketed by GN branchlines (21 in all) serving every imaginable grain elevator.

The western half is the mountainous portion that most people identify with Great Northern. This included crossing the northern Rockies and the even more difficult Cascade ranges. Cities on the western half included Billings, Butte, Helena, Havre, Spokane, Portland, Seattle, and Vancouver. In 1931, a connection to the Western Pacific was completed from Bieber north to Bend, Oregon. This line was disconnected from the rest of the Great Northern. They used trackage rights on the Oregon Trunk and SP&S to bridge the gap. The Cascade Tunnel, the longest on the continent at 7.8 miles, wasn’t completed until 1931. Construction included a massive sluiceway and hydro-electric power station to feed the electrified line through the tunnel and several miles of railroad on either side. This replaced the original Cascade Tunnel which was a third as long but 500 feet higher up the mountain. That replaced the original route that was another 700 feet higher, had 4% grades and 50 miles of snowsheds. All told, Great Northern had about 8,300 route miles.

The steam era was especially unkind to the Great Northern. They seemed to go out of their way to make their locomotives ugly. Belpaire fire boxes were the norm (made famous by the Pennsylvania, made hideous on the GN.) Headlights were often mounted just above center giving them a spinster look. Cab fronts were often at odd angles. The tender coal bunkers were often taller than the engines. But it wasn’t just aesthetics. GN had a knack for buying the wrong engines for the job. 150 Prarie type 2-6-2’s were so unstable at speed that they were busted down to branchline duty almost straight away and none survived after about 1930. Their first 4-8-2 Mountains built for passenger and fast freight were such a disaster, they were rebuilt into 2-10-2’s. Many railroads had built Mountains out of Mikes but no one had ever started with a Mountain and had to build something else from it. The first 2-6-6-2’s were so under-powered, the boilers were used to make Mikados instead. They did manage to build the largest, fastest, and most powerful Mikados in the country however. Their articulated fleet included 2-6-6-2, 2-6-8-0 (later rebuilt into Mikes), 2-8-8-0, 2-8-8-2 types as well as a pair of Challengers originally delivered to SP&S. Many engines were dressed up with green boilers and boxcar red cab roofs.

For the first generation of diesels, GN bought like many large railroads did: a sampling from everyone. Cab and hood units from EMD and Alco and switchers from EMD, Alco, and Baldwin populated the roster. GN’s first generation geeps and SD’s were delivered with the long hood as the front. This included their GP20’s which had high short hoods and the long hood as the front. Aside from an early black scheme for switchers, the GN fleet was delivered in Omaha Orange and green with yellow piping.

Beginning with the arrival of GP30s in 1962, the paint scheme was simplified by dropping the bottom orange band and the yellow piping. For the second generation, General Electric replaced Alco as a supplier of new road engines.

In 1962, some GN freight cars began to appear in Glacier Green which ran along side the vermilion paint adopted in 1956. In 1967, they went for a major shift. Sky Blue, white, and dark gray were joined by a new version of the Rocky the goat logo. There was talk that this would become the paint scheme for Burlington Northern. The GN name and logo was painted on a steel panel bolted the the hand railings of hood units, making it easier to remove after the merger. For whatever reason, they went with green, black and white, a version of which was simultaneously being tested on the Burlington Route. In 1970, Great Northern, Northern Pacific, Spokane Portland & Seattle, and Burlington Route merged to form Burlington Northern.

Brand/Importer Information: AZL is the leader in North American Z scale locomotives and rolling stock. Since 2000, AZL has released a vast variety of freight, passenger and locomotives. AZL continues to push the boundaries of Z scale with amazing details and incredible performance. No matter if you are looking to run steam, or the most modern diesels, AZL has something for you.