THAI State Railways (SRT) has three diesel locos still in service that were built 65 years ago by long-defunct American manufacturer Davenport Locomotive Works.
In late 2017, the three locos were reported to be operating in the centre of the country: Nos. 525 at Nakhom Ratchasima, 530 at Uttaradit, and 540 at Nakhom Lampang.
The SRT Davenport locos were first ordered as part of a major investment plan after the Second World War to rebuild the Thai rail network and repair wartime damage.
Davenport initially supplied 18 500hp Bo-Bo diesels built in the USA, while Sulzer supplied seven diesel-electric locos built in Switzerland (six earlier Sulzer diesels had been supplied to SRT in the 1930s); 100 steam locos were supplied by Japanese builders.
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