Gaugemaster Collection GM2210604D GM2210604D Class 33 012 BR Blue w/Yellow & Black Cabs Diesel Locomotive - DCC Fitted. In the winter, their expected use was to be for freight. The British Rail Class 33, also known as the BRCW Type 3 or Crompton, is a class of Bo-Bo diesel-electric locomotives, ordered in 1957 and built for the Southern Region of British Railways between 1960 and 1962.