AZL - 90317-1 - Covered Hopper, 3-Bay, ACF - Northern Pacific - 4-Pack

Specific Item Information: Road Numbers: 76354, 76360, 76390, 76395

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.

Road Name History: The Northern Pacific Railway (reporting mark NP) was a transcontinental railroad that operated across the northern tier of the western United States from Minnesota to the Pacific Coast. It was approved by Congress in 1864 and given nearly 40 million acres (160,000 km2) of land grants, which it used to raise money in Europe for construction. Construction began in 1870 and the main line opened all the way from the Great Lakes to the Pacific when former president Ulysses S. Grant drove in the final "golden spike" in western Montana on Sept. 8, 1883.

The railroad had about 6800 miles of track and served a large area, including extensive trackage in the states of Idaho, Minnesota, Montana, North Dakota, Oregon, Washington and Wisconsin. In addition the company had an international branch to Winnipeg, Manitoba, Canada. The main activities were shipping wheat and other farm products, cattle, timber and minerals; bringing in consumer goods, transporting passengers; and selling land.

The company was headquartered first in Brainerd, Minnesota, then in Saint Paul, Minnesota. It had a tumultuous financial history, and in 1970 it merged with other lines to form the Burlington Northern Railroad.

Read more on Wikipedia.

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.