In the Railway Series, these coaches are commonly used for passenger trains on the North Western Railway. They have also been used for the Wild Nor' Wester and fast passenger trains and are now used on local and branchline trains.
These coaches are sentient. Like many coaches on Sodor, they do not appreciate being bumped by an engine, and if they are not handled properly, they can get back at their engine. Especially if their brake-pipe is damaged from rough treatment, they will refuse to go further, as shown when James damaged a brake-pipe for bumping his coaches and speeding.
List of known named sentient coaches:
Types of designs in the Railway Series:
The coaches were primarily painted orange until around 1984, when they were repainted brown with a yellow stripe. There were also some blue and white coaches.