The history of the Simplex locomotive is strongly tied to the evolution of the Dorman engines with which they were fitted.
Locomotives still fitted with their original Dorman engines can often be recognised by a characteristic “hunting” of the engine on tickover.
42 (Motor Rail 7710) will be in action on our open days on 13th and 14th September, when we aim to show this and other preserved engines working in the former industrial setting of the Apedale Valley.
