A diesel multiple unit or DMU is a multiple-unit train powered by on-board diesel engines. A DMU requires no separate locomotive, as the engines are incorporated into one or more of the carriages. Diesel-powered single-unit railcars are also generally classed as DMUs. Diesel-powered units may be further classified by their transmission type: diesel–mechanical DMMU, diesel–hydraulic DHMU, or diesel–electric DEMU.
A multiple-unit train or simply multiple unit (MU) is a self-propelled train composed of one or more carriages joined together, which when coupled to another multiple unit can be controlled by a single driver, with multiple-unit train control.
Push–pull is a configuration for locomotive-hauled trains, allowing them to be driven from either end of the train, whether having a locomotive at each end or not.
A control car, cab car, control trailer, or driving trailer is a generic term for a non-powered railroad (US) or railway (UIC) vehicle that can control operation of a train at the end, opposite to the position of the locomotive. They can be used with diesel or electric motive power, allowing push-pull operation without the use of an additional locomotive. They can also be used with a power car or a railcar. In a few cases control cars were used with steam locomotives, especially in Germany and France.
The Sri Lanka Railway Department is Sri Lanka's railway owner and primary operator. As part of the Sri Lankan government, it is overseen by the Ministry of Transport. Founded in 1858 as the Ceylon Government Railway, it operates the nation's railways and links Colombo with other population centres and tourist destinations.
Udarata Menike is a daytime passenger train that runs between Colombo and Badulla in Sri Lanka.
The 900/800 class railcars were Diesel Multiple Units built by the New South Wales Government Railways between November 1951 and November 1960.
Locomotives and train sets of Sri Lanka Railways consist mostly of diesel locomotives and multiple units. Steam locomotives are no longer used, except on heritage trains, such as the Viceroy Special.
"Podi Manike" is a Sri Lankan passenger train running from Colombo Fort to Badulla. This journey covers about 300 km and is renowned for being the most beautiful train journey in Sri Lanka, especially the stretch from Nanuoya to Ella. It takes about 10 hours to complete the journey.
Sri Lanka Railways Class S11 is a diesel multiple-unit (DMU) train, built for Sri Lanka Railways by Integral Coach Factory and imported through RITES Ltd, an Indian state infrastructure corporation on a line of credit extended by the Indian Government. They were built to replace locomotive-hauled passenger trains. Twenty S11 DMUs were ordered to strengthen long-distance travel on the Coastal Line from Colombo to Matara.
The Main Line is a major railway line in the rail network of Sri Lanka and considered by many to be one of the most scenic train journeys in all of Asia. The line begins at Colombo Fort and winds through the Sri Lankan hill country to reach Badulla.
Diesel multiple units and railcars are trains, usually with passenger accommodation, that do not require a locomotive. Railcars can be single cars, while in multiple units cars are marshalled together with a driving position either end. As of December 2010, 23 percent of the rail passenger cars used on Network Rail are part of a diesel multiple unit.
Class S12 is a diesel multiple-unit (DMU), built for Sri Lanka Railways by China's CSR Corporation. The first batch arrived in Sri Lanka in August 2012. They were built to replace locomotive-hauled passenger trains. Seven of the S12 DMUs were ordered to strengthen long-distance travel on the Main line from Colombo to Badulla. Four of S12s will serve the Kelani Valley Line. The remaining two designed as luxury trains.
Class S8 is a Diesel multiple unit (DMU) made by Hitachi and Hyundai, operated by Sri Lanka Railways. It was imported to Sri Lanka in 1991 and, according to the website Sri Lanka Railways Info Page, is "the best diesel multiple unit ever imported to Sri Lanka".
In 1955 the state owned Ceylon Government Railway, now the Sri Lanka Railways, manufactured Sri Lanka's "first" diesel-electric locomotive using old spares of withdrawn Class S1 DMU power sets. This locomotive was named as "Jayanthi" and classified Class M3 - 589. The locomotive was put to service on 5 September 1956. Two years later, in 1958, the then Ceylon Government Railway manufactured another locomotive and Classified it as Class M3 590.
Class S10 is a diesel multiple unit (DMU) train, built for Sri Lanka Railways by China South Locomotive & Rolling Stock Corporation and imported in 2008. Fifteen S10 DMUs were ordered to strengthen commuter services on the main line. These DMUs are with advanced technical features and S10s do considerable service in SLR schedule.
Class S9 is a type of diesel multiple unit train operated by Sri Lanka's state run rail operator Sri Lanka Railways.
The Sri Lanka Railways Class W1 is a class of Sri Lankan diesel hydraulic locomotive that was built by Rheinstahl Henschel in 1969. A total of 45 W1s were built and imported. This is the first diesel-hydraulic locomotive which ran on Sri Lankan rail.
Ceylon Government Railway Class S1 is a class of diesel multiple unit train-set built by English Electric for Ceylon Government Railway.
Sri Lanka Railways Ordered 6 DEMUs from ICF in 2017. The first set of the order was imported in December 2018. One DEMU contains 2 driving cars, 2 driving tailors, 1 Air-conditioned coach,2 business class coaches, and 5 Economic class coaches. Class s13A will arrive in 2021.
