Soviet locomotive class OR23 on:
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Built in 1949, the opposed-piston 2-10-4 was one of a number of
Russian Reforms
- Describes this and other Russian locomotive types ОР23 2-10-4 locomotives Luhanskteplovoz locomotives 5 ft gauge locomotives Railway locomotives introduced in 1949 {{steam-loco-stub
Built in 1949, the opposed-piston 2-10-4 was one of a number of Soviet
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nation ...
locomotive designs that was unsuccessful. The cylinders were placed above the center driving axle
On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case of a steam turbine locomotive). On a conventional, non-articulated locomotive, the driving wheels are all coupled ...
. Unlike nearly all steam locomotives, the pistons had rods on both ends which transferred power to the wheels. The idea was to balance the driving forces on the wheels, allowing the counterweights on the wheels to be smaller and reducing "hammer blow
In rail terminology, hammer blow or dynamic augment is a vertical force which alternately adds to and subtracts from the locomotive's weight on a wheel. It is transferred to the track by the driving wheels of many steam locomotives. It is an out-of ...
" on the track. The locomotive was never repeated and the design was a failure. The locomotive was never used for more than testing and was returned to its builder, the Voroshilovgrad Works, and scrapped sometime afterward.
See also
*History of rail transport in Russia
Russia was and is the largest country in the world. Its geography of north–south rivers and east–west commerce, plus, importantly, the mostly flat terrain, made it very suited to develop railroads as the basic mode of transportation.
Today ...
* Russian Railway Museum
The Russian Railway Museum is situated next to Baltiysky railway station in Saint Petersburg. The museum was established in 1978, its current site and exhibition opened to public on 1 November 2017. The museum utilizes the nineteenth century lo ...
, Saint Petersburg
Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
External links
Russian Reforms
- Describes this and other Russian locomotive types ОР23 2-10-4 locomotives Luhanskteplovoz locomotives 5 ft gauge locomotives Railway locomotives introduced in 1949 {{steam-loco-stub