Tasmanian Government Railways Y class
class of 8 Australian Bo′Bo′ diesel-electric locomotives

The Tasmanian Government Railways Y class is a class of diesel locomotives built by the Tasmanian Government Railways between 1961 and 1971.
History
The Y class was designed by English Electric and constructed by the Tasmanian Government Railway's Launceston Railway Workshops. Eight were built as mainline freight and passenger locomotives between 1961 and 1971.
Following the success of the X class, the TGR decided to order additional diesel locomotives.
English Electric submitted plans that were quite similar to the Jamaican Railways 81 class, South Australian Railways 800 class and Midland Railway of Western Australia F class but with a small power increase. They were slightly larger and more powerful than the X class. They had a similar layout to the X class, a long hood unit with the cab at one end.
Construction began at the TGR's Launceston Railway Workshops in 1961, and three of the planned eight were completed relatively quickly. However, construction of the other five was slow, with the last not being delivered until 1971, by which time the design had become dated.
Technical details
The Y class was fitted with an English Electric 6SRKT Mark II (Mark III on last two) in-line six turbocharged diesel engine.
This brief starts where responsible research should: with the source description of “Tasmanian Government Railways Y class” as class of 8 Australian Bo′Bo′ diesel-electric locomotives. Everything that follows is an evidence route, not borrowed authority.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 12, 2026. The linked authority identifier is Q7670180. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1961 and 1971.
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This entry incorporates text from “Tasmanian Government Railways Y class” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.