Micro-Trains - 110 00 251 - Tank Car, Single Dome, 56 Foot - Union Pacific - 903040

Specific Item Information: These 56’ general service tank cars are grey with black lettering and colorful herald. These cars were calibrated to 260,000 pounds on a master scale, and then used to verify calibration of other railcar scales across the Union Pacific® network. Easy to recalibrate by filling or draining the tank, and with fewer operational restrictions than the smaller scale test cars, Union Pacific employs a fleet of several of these cars.

Model Information: Model Introduced: August, 2001. Era: 1970s to Present. It is a model of a DOT 111 A100 tank car.

Prototype History: Larger 50+ foot yank cars replaced their smaller predecessors in the late 1960s and 1970s. One example is the class DOT 111 A100. This car is rated for non-pressurized use with a safe maximum operating pressure of 100 psi. Developments in materials and manufacturing allowed this tanker to be constructed without an underframe. The bottom of the tank itself serves as the load bearing structure. The primary difference between the various types of DOT 111 A100 class tank cars is internal with varying types of insulation, lining and even weld material. Cars of this type haul a wide variety of commodities such as gasoline, vegetable oils, corn syrup, fruit juice and weed killers.

Road Name History: The Union Pacific Railroad (reporting mark UP) is a freight hauling railroad that operates 8,500 locomotives over 32,100 route-miles in 23 states west of Chicago, Illinois and New Orleans, Louisiana. The Union Pacific Railroad network is the largest in the United States and employs 42,600 people. It is also one of the world's largest transportation companies.

Union Pacific Railroad is the principal operating company of Union Pacific Corporation (NYSE: UNP); both are headquartered in Omaha, Nebraska. Over the years Union Pacific Corporation has grown by acquiring other railroads, notably the Missouri Pacific, Chicago & North Western, Western Pacific, Missouri-Kansas-Texas, and the Southern Pacific (including the Denver & Rio Grande Western).

Union Pacific Corporation's main competitor is the BNSF Railway, the nation's second largest freight railroad, which also primarily services the Continental U.S. west of the Mississippi River. Together, the two railroads have a duopoly on all transcontinental freight rail lines in the U.S.

Read more on Wikipedia and on Union Pacific official website.

Brand/Importer Information: Micro-Trains is the brand name used by both Kadee Quality Products and Micro-Trains Line. For a history of the relationship between the brand and the two companies, please consult our Micro-Trains Collector's Guide.

Manufacturer Information: Micro-Trains Line split off from Kadee Quality Products in 1990. Kadee Quality Products originally got involved in N-Scale by producing a scaled-down version of their successful HO Magne-Matic knuckle coupler system. This coupler was superior to the ubiquitous 'Rapido' style coupler due to two primary factors: superior realistic appearance and the ability to automatically uncouple when stopped over a magnet embedded in a section of track. The success of these couplers in N-Scale quickly translated to the production of trucks, wheels and in 1972 a release of ready-to-run box cars.

Micro-Trains Line Co. split off from Kadee in 1990 to form a completely independent company. For this reason, products from this company can appear with labels from both enterprises. Due to the nature of production idiosyncrasies and various random factors, the rolling stock from Micro-Trains can have all sorts of interesting variations in both their packaging as well as the products themselves. When acquiring an MTL product it is very important to understand these important production variations that can greatly enhance (or decrease) the value of your purchase.

Please consult our Micro-Trains Collector's Guide