[3] The superheated vertical water-tube boiler and the motor were similar to those used in Sentinel steam wagons.

Tractive effort was: These locomotives were intended for service on the Wisbech and Upwell Tramway and had several tram engine features.

These included cowcatchers and sideplates and a cab at each end, similar to the GER Class C53 locomotives which already worked on the line.

They were not a great success on the Wisbech and Upwell and both were moved to Yarmouth in May 1931 to work the quayside line.

This article relating to steam locomotives operated in England is a stub.