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A drawing design of the N&W class J locomotive. After the outbreak of World War II, the Norfolk and Western Railway's (N&W) mechanical engineering team developed a new locomotive—the streamlined class J 4-8-4 Northern—to handle rising mainline passenger traffic over the Blue Ridge Mountains, especially on steep grades in Virginia and West Virginia.
The MOW crew had to disconnect the locomotive from its tender and rerail it one set of wheels at a time. [9] On the afternoon of January 26, No. 611 was finally back on the rails and towed to Williamson for inspection. [5] [9] The locomotive's skirting panels, running boards, valve gear parts, and other appliance parts were torn off from its ...
An equalising system links not only the driving-wheel axles but also the trailing and/or leading truck axle(s). [3]: 32 [5] [6]: 425 Leaf springs Main suspension springs for the locomotive. Each driving wheel supports its share of the locomotive's weight via leaf springs that connect the axle's journal box / axle box (40) to the frame.
Especially in steam days, wheel arrangement was an important attribute of a locomotive because there were many different types of layout adopted, each wheel being optimised for a different use (often with only some being actually "driven"). Modern diesel and electric locomotives are much more uniform, usually with all axles driven.
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
Steel tire on a steam locomotive's driving wheel is heated with gas flames to expand and loosen it so it may be slipped over the wheel.. The steel wheel of a steam locomotive and other older types of rolling stock were usually fitted with a steel tire (American English) or tyre (in British English, Australian English and others) to provide a replaceable wearing element on a costly wheel.
American Locomotive Company (ALCO) 4664-4 4-6-6-4: Static display Cody Park in North Platte, Nebraska: 3985: July 1943 American Locomotive Company (ALCO) 4664-4 4-6-6-4 Undergoing restoration to operational condition Railroading Heritage of Midwest America in Silvis, Illinois [3] [4] [5] 4004: September 1941 American Locomotive Company (ALCO ...
The locomotive was designed as an AC traction alternative to the SD70M-2 that uses three DC traction motors on each of two three axle trucks. Only BNSF ordered the model in 2014. [3] The other locomotive with this wheel arrangement is the EMD SD70MACH, which is an SD70MAC rebuilt by Progress Rail for Metra and used for passenger service. In ...