Thomas the Tank Engine Wikia


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This article is about the steam engine. You may be looking for the diesel engine.

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"Well, go on. Aren't you going to impress us with your thoughts after all?"
— Mike, Jock the New Engine

  • Based on: Ravenglass and Eskdale Railway's River Irt
  • Builder: Duffield Bank
  • Designer: Sir Arthur Heywood
  • Built: 1894
  • Configuration: 0-8-2, originally 0-8-0T
  • Arrived on Sodor: 1967

Bert is the quietest of the Arlesdale Railway engines. He is the oldest out of the original three.


Bert worked on an unnamed line in England until 1967, at which time it closed down and he, Rex and Mike were sent to Sodor to work the Arlesdale Railway. Some time after his arrival, Bert took offence when the Reverend W. Awdry and the Reverend Teddy Boston accidentally sprayed him with mud while passing him in their car, and in retaliation Bert drenched the Reverend Teddy Boston with water when he took a ride in Bert's cab. However, both parties made up and as a result, Bert was featured in the Reverend W. Awdry's next book, Small Railway Engines.

For a long time Bert had trouble with steaming, but this has stopped since he was rebuilt into a narrow gauge outline with a taller chimney, dome, cab, and a larger boiler in 1973, giving his current appearance.


Bert is friendly, and somewhat clever and cynical.


Bert is based on the Ravenglass and Eskdale Railway's River Irt. River Irt also appeared in a seventeenth season learning segment which featured Mr. Perkins.


Bert is painted NWR blue with red-and-yellow lining. He has a brass dome, red nameplates with yellow writing mounted each side of his smokebox and "Arlesdale" written on his tender in yellow.


Railway Series

He may be introduced in the television series in Sodor's Legend of the Lost Treasure, as Rex and Mike will be introduced.


  • Bert's rebuilt form was never featured in The Railway Series.
  • In 'Sticking Power', Bert is said to be younger than Rex and Mike, this is incorrect, as Bert is much older than the two of them.



Arlesdale Railway
RexBertMikeFrankJockBlister I and Blister IISigrid of Arlesdale

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