Tooling begins on Kernow MRC's GWR steam railmotor

20 October 2020
The retailer's exclusive OO gauge model of the 1900s-built GWR steam railmotor takes another step forward in this latest update on the project.

Kernow Model Rail Centre has revealed that its GWR steam railmotor for OO gauge has moved into tooling, following approval of its CAD.


Diagram O GWR railmotor

KMRC Diagram O GWR railmotor

Diagram 'O' GWR railmotor


Its tooling will allow for the Diagram 'O' type and Diagram 'R' type steam railmotors to be produced in five versions, as listed below. The most obvious differences between the diagram 'O' and diagram 'R' types are the larger boiler room windows, double leaf passenger doors and 'Fishbelly' rather than 'Equalising' bogies.


  • (K2301) Diagram 'R' No. 93 in GWR lined crimson lake (as preserved) 
  • (K2302) Diagram 'R' No. 97 in simplified GWR chocolate and cream (Late 1920s onwards)
  • (K2303) Diagram 'O' No. 63 in GWR lined brown (1908 – 1912)
  • (K2304) Diagram 'R' No. 85 in GWR lined crimson lake (1912 – 1922)
  • (K2305) Diagram 'O' No. 61 in GWR fully lined chocolate and cream (1903 – 1908)


Diagram R GWR railmotor

KMRC Diagram O GWR railmotor

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Diagram 'R' GWR railmotor


The GWR Steam Railmotor model will be completed with working directional oil lamps and interior lights and models will be DCC-ready with a 21-pin decoder socket.


The preserved Railmotor No. 93 was laser-scanned at Didcot Railway Centre, and detailed CADs were produced using further reference to original GWR archive drawings and the kind assistance of Graham Drew, Great Western Society Railmotor Project Manager.


Graham Muspratt, Development Manager said: “A lot of time and effort has been taken to get the detailed CADs to the final approval stage to allow tooling to commence. It is extremely satisfying to reach the next stage in this project, and we thank the Great Western Society for all its continued support and valued input as the project progresses.”


Kernow Model Rail Centre is to maintain prices as announced. For further details, including pricing and availability, visit the retailer's website.


My video of the Railcar at Barry

Posted by Michael Wilcock on Sun 18 Apr 12:39:44