British Rail Class 207

British Rail Class 207 (3D)
South Central 207202 at Hurst Green in 2002
In service1962-2004
ManufacturerBR Eastleigh
Number built19 trainsets
SuccessorClass 170
Formation3 cars per trainset
Operators
Specifications
Maximum speed75 mph (121 km/h)
Weight56 long tons (56.9 t; 62.7 short tons)
Prime mover(s)English Electric 4SRKT Mark II (4-cylinder diesel)
Power output600 shp (450 kW) at 850 rpm
Coupling systemDrophead buckeye[1]
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

The British Rail Class 207 (3D) diesel-electric multiple units were built by BR at Eastleigh in 1962. The fleet had a lifespan of 42 years. The Southern Region class 201 to 207 DEMUs are nicknamed 'Thumpers' due to the distinctive sound of their engines.[2][3]

  1. ^ System Data for Mechanical and Electrical Coupling of Rail Vehicles in support of GM/RT2190 (PDF). London: Rail Safety and Standards Board. 22 June 2011. p. 4. SD001. Archived from the original (PDF) on 1 April 2012. Retrieved 22 November 2022.
  2. ^ "Preserved Thumpers". Preservedthumpers.com. Archived from the original on 19 August 2014. Retrieved 11 October 2017.
  3. ^ Skinner, Paul. "Epping Ongar Railway - Rolling Stock Department - Diesel-Electric Multiple Units". Eorailway.co.uk. Archived from the original on 17 February 2015. Retrieved 11 October 2017.