Diesel trains are powered by a diesel engine and come in several types including diesel-electric and diesel-hydraulic. They have a bulky rounded shape and are fitted with headlights and ditch lights. Early useful diesel trains included the 1924 SŽD Eel2 in Kiev. Electric trains are powered by overhead lines or third rails and were pioneered by Robert Davidson and Werner von Siemens. They have higher performance and lower costs than steam trains. Steam trains produce power from coal or oil burned to produce steam that moves pistons connected to wheels. They were first developed in the UK and dominated rail transport until being replaced by diesel and electric trains.

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Locomotive:A locomotive orengine isarail transportvehicle thatprovidesthe motivepowerfora
train.
Diesel Train
A diesel train is run on a diesel engine. Several types of diesel locomotive have been
developed, differing mainly in the means by which mechanical power is conveyed to the
driving wheels. Unlike steam engines, internal combustion engines require a transmission to
power the wheels. The engine must be allowed to continue to run when the locomotive is
stopped
World's first useful diesel locomotive for long
distances SŽD Eel2, 1924 in Kiev.
Diesel trainfromthisgeneration.Comparingbothtrains
fromthenand now you can see that theystill have a
similarbulky,roundedshape.Theylookverystrong and
still looksimilartowhentheywere firstbuiltbuthave just
beenadjustedslightly.
Lights: The lights fitted to diesel locomotives vary from country to country. North American
locomotives are fitted with two headlights for redundancy and a pair of ditch lights. The
latter are fitted low down at the front and are designed to make the locomotive easily
visible as it approaches agrade crossing. Older locomotives may be fitted with a Gyralite
or Mars Light instead of the ditch lights.
Types of diesel trains:
 Diesel-mechanical
 Diesel-electric
 Electro-diesel
 Diesel-hydraulic
 Hydrokinetic transmission

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Electric trains
Types of Electric trains:
 Electric locomotive
 Electric multiple unit of self-propelled carriages
 Battery electric multiple of self-propelled carriages
 Railway electrification system
 Tram
An electric locomotive is powered by electricity from overhead lines, a third rail or on-board
energy storage such as a battery or fuel cell. An advantage is the lack of pollution from the
locomotives. Electrification results in higher performance, lower maintenance costs and
lower energy costs.
The first one was built in 1837 by chemist Robert Davidson of Aberdeen. He later built a
larger locomotive named Galvani in 1841. The first electric passenger train was presented by
Werner von Siemens at Berlin in 1879.
Image of the first few built. Has same long shape as the
first Europe image.
Example from Europe.
Example from Russia.
Both trains from different locations look very different however, the second Europe train is
more similar to the Russian one. Similar green colours are used (apart from second image).
Distinctive shape.

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Steam trains
A steam locomotive is a railway locomotive that produces its pulling power through a steam
engine. These locomotives are fuelled by burning combustible material—usually coal, wood,
or oil—to produce steam in a boiler. The steammoves reciprocating pistons which are
mechanically connected to the locomotive's main wheels (Drivers). Both fuel and water
supplies are carried with the locomotive, either on the locomotive itself or in wagons
(tenders) pulled behind.
The first steam locomotive was made by Richard Trevithick on the 21st of Feb 1804, two
years after the railway locomotive he made in 1802 or the road locomotive he made in
1801.
Steam locomotives were first developed in Great Britain during the early 19th century and
dominated railway transport until the middle of the 20th century. From the early 1900s they
were gradually superseded by electric and diesel locomotives.
Drawing of a Great Western Railway King
class locomotive.
They look very metallic. Dark, bold colours used mainly black, red or dark green. Usually
have a blower at the front sticking out of the top with a circle front. Shape is very different
compared to other trains.

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All locomotives are fitted with a variety of appliances:
 Steam pumps and injectors
 Boiler Lagging
 Safety valves
 Pressure gauge
 Braking
 Blower
 Headlights
 Bells and Whistles
 Automatic control
Shunting Yard
ShuntingYardis a railroadyard foundat some freighttrainstations,usedtoseparate railroadcars
on to one of several tracks.Firstthe cars are takento a track, sometimescalleda leadora drill.From
there the cars are sentthrougha seriesof switches calledaladderontothe classificationtracks.
Larger yards tendtoput the leadon an artificiallybuilthill calleda humpto use the force of gravity
to propel the cars throughthe ladder.
There are three typesof shuntingyards:
 Flat yard
 Hump yard
 Gravity yard
Reference
Shunting yard: https://en.wikipedia.org/wiki/Classification_yard
Electric : https://en.wikipedia.org/wiki/Electric_locomotive
Diesel: https://en.wikipedia.org/wiki/Diesel_locomotive
Steam: https://en.wikipedia.org/wiki/Steam_locomotive