Delaware Valley - 190 - Covered Hopper, 2-Bay, GATX Airslide 4180 - Western Pacific - 11696

Model Information: This model was originally created by Delaware Valley. It was later acquired by Bowser. It has also been used by Eastern Seaboard Models models.

Prototype History: The first Airslide covered hopper was introduced by General American Transportation Corporation (GATX) in 1953 and had a capacity of 2600 cubic feet. The Airslide is primarily designed for the bulk shipment of dry, granular or powdered commodities. The design of that car is such that it can be loaded and unloaded quickly and with little spillage through the use of air pressure. The most common commodities carried include: flour, sugar, starch, plastic pellets, cement, powdered chemicals and carbon black.

Due to customer demand for larger covered hoppers capable of handling bulk commodities, General American Transportation Corporation introduced the larger 4180 c.f. model in 1963. GATX produced more than 5,000 of the 4180 cubic foot Airslide covered hoppers between 1963 and 1980. These very common cars continued General American’s “Airslide” family innovations from the 1950s, and proved valuable to bulk shippers who wanted a larger car than the earlier-design 2600 cubic foot cars provided.

Road Name History: The Western Pacific Railroad (reporting mark WP) was a Class I railroad in the United States. It was formed in 1903 as an attempt to break the near-monopoly the Southern Pacific Railroad had on rail service into northern California. WP's Feather River Route directly competed with SP's portion of the Overland Route for rail traffic between Salt Lake City/Ogden, Utah and Oakland, California for nearly 80 years. In 1983 the Western Pacific was acquired by the Union Pacific Railroad. The Western Pacific was one of the original operators of the California Zephyr.

The original Western Pacific Railroad was established in 1865 to build the westernmost portion of the Transcontinental Railroad between San Jose, California (later Oakland, California), and Sacramento, California. This company was absorbed into the Central Pacific Railroad in 1870.

The second company to use the name Western Pacific Railroad was founded in 1903. Under the direction of George Jay Gould I, the Western Pacific was founded to provide a standard gauge track connection to the Pacific Coast for his aspiring Gould transcontinental system. The construction was financed by the Denver and Rio Grande Western Railroad, a company in the Gould system, which lost access to California due to the attempted acquisition of the Southern Pacific Railroad by the Rio Grande's main rival, the Union Pacific Railroad. The Western Pacific Railroad acquired the Alameda and San Joaquin Railroad and began construction on what would become the Feather River Route. In 1909 it became the last major railroad completed into California. It used 85-lb rail on untreated ties, with no tie plates except on curves over one degree; in 1935 more than half of the main line still had its original rail, most of it having carried 150 million gross tons.

The Western Pacific was acquired in 1983 by Union Pacific Corporation, which in 1996 would purchase its long-time rival, the Southern Pacific Railroad. In July 2005 Union Pacific unveiled a brand new EMD SD70ACe locomotive, Union Pacific 1983, painted as an homage to the Western Pacific.