The first Gas Turbine Loco. Originally ordered by the GWR in 1946 from Brown Boveri & Cie in Switzerland, It didn’t finally get built until 1949. It ran on BR Western Region intil 1960 when it was repatriated to Europe.  It has since returned to the UK and is stored at Didcot Railway Centre. Because of the connection to Switzerland, this is a double must for me and will be seen running in both the Bondale and Bontal guises of the layout.