When did steam trains change to diesel?

In rail transport, dieselisation refers to the replacement of the steam locomotive or electric locomotive with the diesel locomotive (usually the diesel-electric locomotive), a process which began in the 1930s and is now substantially complete around the world.



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By the end of the 1950s the steam era was over and increasingly powerful diesels ruled the rails.

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Beginning in the early 1900s, steam locomotives were gradually superseded by electric and diesel locomotives, with railways fully converting to electric and diesel power beginning in the late 1930s.

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The diesel engine drives an alternator, which produces electricity to run electric motors mounted on the locomotive's axles. The internal combustion engine was a dramatic improvement in efficiency over the steam locomotive, making substantial savings possible in maintenance and the elimination of widespread facilities.

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The last Victory ships had already been equipped with marine diesels, and diesel engines superseded both steamers and windjammers soon after World War Two. Most steamers were used up to their maximum economical life span, and no commercial ocean-going steamers with reciprocating engines have been built since the 1960s.

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The last major passenger ship built with steam turbines was the Fairsky, launched in 1984, later Atlantic Star, reportedly sold to Turkish shipbreakers in 2013. Most luxury yachts at the end of the 19th and early 20th centuries were steam driven (see luxury yacht; also Cox & King yachts).

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Due to the relatively low cost of coal, oil was rarely used on Britain's streamtrains and in most cases only where there was a shortage of coal. In the United States, the first oil burning steam locomotive was in service on the Southern Pacific railroad by 1900.

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Steam engines lasted well into the late 1950s on major American railroads, and in isolated cases into the middle 1960s on small common carrier roads. The last steam locomotive fleet in everyday use (i.e. not a restored fleet) was retired in the late 1970s.

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Puffing Billy is the world's oldest surviving steam locomotive, constructed in 1813–1814 by colliery viewer William Hedley, enginewright Jonathan Forster and blacksmith Timothy Hackworth for Christopher Blackett, the owner of Wylam Colliery near Newcastle upon Tyne, in the United Kingdom.

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There are around 200 steam locomotives still operable in the United States in 2022. Preserving those existing steam locomotives has become an important mission for locomotive enthusiasts.

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Steam locomotives are no longer used to transport passengers or products because electric and diesel locomotives are faster, more efficient, and easier to maintain. The locomotives that are still running are a piece of history dating back to the 1800's that really put into perspective just how far we've come!

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Elements of the diesel locomotive The diesel engine may operate on the two-stroke or four-stroke cycle. Rated operating speeds vary from 350 to 2,000 revolutions per minute, and rated output may be from 10 to 4,000 horsepower.

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A steam diesel hybrid locomotive is a railway locomotive with a piston engine which could run on either steam from a boiler or diesel fuel.

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A train engine requires about a hundred litres of fuel to get it started. So it wouldn't be economical if the engine is stopped and started frequently. This apart, if the engine is stopped, the moving parts' lubrication will also come to a halt.

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If we take an overall view of the transport sector, 71% of transportation related carbon emissions come from road users, whereas only 1.8% of emissions stem from rail travel. So in absolute terms, trains are responsible for a lot less emissions than cars.

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Coal fired steam locomotives do produce a lot of CO2 emissions but also aerosols which has a cooling effect (global dimming), which cancels out some of the warming produced by CO2. Diesel locos probably produce less CO2 but also less aerosols that would cancel out the CO2.

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The class J-1 and J-3a Hudsons of 1927 had 79 inch drivers. They were fast, powerful, very well proportioned, good looking, and may have been the best known steam locomotive. Honorable Mentions: CMStP&P Class F7.

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Railfan & Railroad stated in 2022 that the only places on earth to see steam locomotives in revenue freight service are small switching operations in China, North Korea and Bosnia, but that these were sporadic at best. Tourist locomotives are still in regular use.

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The Fairy Queen is the oldest running train in the world. As the Guinness Book of Records documented, the Fairy Queen in India is the steam locomotive with the oldest running history worldwide.

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By the late steam era (1930s-1940s) a locomotive used in main line service could run anywhere between 75 to 150 miles before needing to refuel, which typically coincided with a train crew's district/territory.

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