Editing GWR 4000 Class (section)

==Performance==
Members of the class performed well as passenger locomotives over all the long-distance routes of the GWR on the fastest express trains and those requiring the longest distance between stops. They gradually became displaced to secondary services by members of the [[GWR 4073 Class|Castle]] and [[GWR King Class|King]] classes in the late 1920s and 1930s. Survivors continued to perform well until the mid-1950s. The 4000 class became a template for two later famous GWR 4-cylinder 4-6-0 classes - the Castle and King Class.<ref name=RCTS5>{{harvnb |le Fleming|1953 |p=H4}}</ref> According to le Fleming "their performance was consistently of the highest standard and they were remarkable free-running engines which rarely suffered breakdown in service. ... No engines were more aptly named than the 'Stars.'"<ref name=RCTS6>{{harvnb |le Fleming|1953 |p=H10}}</ref>