Stanley (named after politician Stanley Baldwin), also known as "No. 2", was an American narrow-gauge tank engine.
Stanley was built at Baldwin Locomotive Works in Philadelphia, Pennsylvania, United States in 1917 and worked in America before arriving on the Mid Sodor Railway.
Stanley had a tendency to ride roughly on the rails, and believed that it didn't matter if he came off the track occasionally. However, this attitude resulted in his being converted into a pumping engine at Arlesdale Works and then moved further up to Cas-ny-Hawin mine. He broke down in 1946 and, the following year, the mine flooded, meaning the end of the Railway. With no reason to stay open, the Mid Sodor Railway closed down and Stanley was scrapped.
Stanley was arrogant and careless, and refused to listen to advice. This carelessness eventually led to him being converted into a pumping engine.
Stanley is based on a Baldwin Locomotive Works 590 4-6-0T locomotive of the Baldwin class 10-12-D for the Welsh Highland Railway.
- Stanley's second appearance, in the back of the shed in "Bulldog", creates a continuity error. According to "Granpuff", Falcon and Stuart did not know about Stanley, implying Stanley's arrival and scrapping occured before their arrival. However, Stanley is seen in the same shed as Falcon, meaning Falcon would have known about Stanley and what happened to him. What's more, it has been confirmed that Falcon was built and came to the railway before Stanley.