The E el-2 (

Cyrillic script The Cyrillic script ( ), Slavonic script or the Slavic script, is a writing system used for various languages across Eurasia. It is the designated national script in various Slavic, Turkic, Mongolic, Uralic, Caucasian and Iranic-speaking c ...

: Ээл2) was a Soviet

diesel-electric locomotive A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels ...

Yury Lomonosov Yury Vladimirovich Lomonosov (russian: Юрий Владимирович Ломоносов; 24 April 1876 – 19 November 1952) was a Russian railway engineer and a leading figure in the development of Russian Railways in the early 20th century ...

and built in Germany. The work was started by Hohenzollern Locomotive Works in Germany but, for political reasons, it was later transferred to

Maschinenfabrik Esslingen Maschinenfabrik Esslingen (ME), was a German engineering firm that manufactured locomotives, tramways, railway wagons, roll-blocks, technical equipment for the railways, (turntables and traversers), bridges, steel structures, pumps and boiler ...

. The locomotive was completed in 1924. On January 20, 1925 it was transferred to the USSR and presented to the press and officials. The rest of that year it spent on several mainline routes and then worked mostly between

Moscow Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million ...

and

Kursk Kursk ( rus, Курск, p=ˈkursk) is a city and the administrative center of Kursk Oblast, Russia, located at the confluence of the Kur, Tuskar, and Seym rivers. The area around Kursk was the site of a turning point in the Soviet–German stru ...

, Russian SFSR, but later moved to Ashkhabad (

Ashgabat Ashgabat or Asgabat ( tk, Aşgabat, ; fa, عشق‌آباد, translit='Ešqābād, formerly named Poltoratsk ( rus, Полтора́цк, p=pəltɐˈratsk) between 1919 and 1927), is the capital and the largest city of Turkmenistan. It lies ...

, Turkmenistan). Despite some technical troubles in the early years of service, it underwent several modifications and lasted until 1954, running about a million kilometers in total.

Powertrain

The

prime mover Prime mover may refer to: Philosophy *Unmoved mover, a concept in Aristotle's writings Engineering * Prime mover (engine), motor, a machine that converts various other forms of energy (chemical, electrical, fluid pressure/flow, etc) into energy ...

was an

MAN A man is an adult male human. Prior to adulthood, a male human is referred to as a boy (a male child or adolescent). Like most other male mammals, a man's genome usually inherits an X chromosome from the mother and a Y chromo ...

submarine-type

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-cal ...

, weighing 26 tonnes, and there were five

traction motor A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles ( electric multip ...

s, one for each driving axle. A semi-flexible

coupling A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end mov ...

was installed between the diesel engine and the generator.

References

Railway locomotives introduced in 1924 E el-2 5 ft gauge locomotives 1′Eo1′ locomotives {{Russia-rail-transport-stub