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For other uses, see Ruby (disambiguation).

Ruby is Crystal Island's number 3 red tank engine.



Ruby is a bit of a jokester. She likes goofing around instead of doing work. Ruby also is a bit short-tempered and known to hold a grudge.


Ruby was originally an 0-4-0 saddle tank believed to have been built by the Avonside Engine Company of Bristol, but prior to being purchased second or third hand by Sir Topham Hatt he acquired components from Hunslet of Leeds and other builders.

After her initial overhaul, she was given a 2-4-2 wheel arrangement.

When she returned in Stories From Sodor:Future, Ruby was given a new design based on the Great Northern Railway Class N2. Designed by Sir Nigel Gresley as a improvement of Henry Ivatt's Class N1, these locomotives were fitted with condensing apparatus because they were used for inter-city work in the Metropolitan areas of London, while later examples were usually seen around Glasgow and Edinburgh in Scotland. One member of this class, No. 1744 has been preserved and operates on the North Norfolk Railway in Norfolk. In addition to being the sole survivor of its class, 1744 is also the sole surviving example of a Gresley designed tank engine.


Ruby is painted red with black lining. She has a black dome, and a red gemstone with a square facet. She also has the number 3 on her bunker in dark red.


  • She is slightly based on Ruby from Steven Universe.