British Rail Class 206
|British Rail Class 206|
Class 206 3R unit at Guildford, June 1979
|In service||1964 – early 1990s|
|Prime mover(s)||English Electric 4-cylinder type 4SRKT Mark II of 500 bhp at 850 rpm|
The British Rail Class 206 or 3R was a type of Diesel electric multiple unit (DEMU) first created in 1964. They were not 'built' as such but rather re-formed from Class 201 and EPB vehicles for use on Reading-Redhill-Tonbridge (North Downs Line) services. Six three-car sets were created, numbered 1201–1206. They were known, colloquially, as 'Tadpole' units because of the contrast between the standard profile of the 416 'head' and the narrow body shape of the 206 'tail'.