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The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive Company (ALCO) between 1941 and 1944 and operated by the Union Pacific Railroad in revenue service until 1962. The 25 Big Boy locomotives were built to haul freight over the Wasatch Range between Ogden, Utah, and Green ...
Steam locomotive components. Main components found on a typical steam locomotive include: enlarge. The diagram, which is not to scale, is a composite of various designs in the late steam era. Some components shown are not the same as, or are not present, on some locomotives – for example, on smaller or articulated types.
Reversing lever. This is the most common form of reverser. It is also known as a Johnson bar in the United States. It consists of a long lever mounted parallel to the direction of travel, on the driver’s side of the cab. It has a handle and sprung trigger at the top and is pivoted at the bottom to pass between two notched sector plates.
CodePen is an online community for testing and showcasing user-created HTML, CSS and JavaScript code snippets. It functions as an online code editor and open-source learning environment, where developers can create code snippets, called "pens," and test them. It was founded in 2012 by full-stack developers Alex Vazquez and Tim Sabat and front ...
LNER Class A3 4472 Flying Scotsman was the first steam locomotive to officially reach 100 mph (160 km/h), on 30 November 1934. 41 018 climbing the Schiefe Ebene with 01 1066 as pusher locomotive (video 34.4 MB) A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam.
LB&SCR A1X class 55 Stepney. Stepney at Horsted Keynes with sister engine 672 Fenchurch. London, Brighton and South Coast Railway A1X Class number 55 Stepney, named after the district of Stepney, is a preserved steam locomotive based at the Bluebell Railway in East and West Sussex, England. Stepney is well known as the first standard gauge ...
The valve is next opened by moving it to the right, allowing the clear space in the middle of the valve to align with the channel in the cylinder above it. Piston valves are one form of valve used to control the flow of steam within a steam engine or locomotive. They control the admission of steam into the cylinders and its subsequent ...
The Baldwin type designation was 'DR-12-8-1500/2, ' meaning D iesel R oad locomotive, with 12 axles (8 of which were driven), and two engines of 1,500 horsepower (1,100 kW) each. The trucks were configured in a 2-D+D-2 wheel arrangement. The nickname came from the numerous axles set in a nearly unbroken line, much like the legs of a centipede.