British Rail Class 207

British Rail Class 207 (3D)
British Rail Class 207 (3D)
	South Central 207202 at Hurst Green in 2002
In service	1962-2004
Manufacturer	BR Eastleigh
Number built	19 trainsets
Successor	Class 170
Formation	3 cars per trainset
Operators	Southern Region of British Railways; Network South East; Connex South Central; Southern;
Specifications
Maximum speed	75 mph (121 km/h)
Weight	56 long tons (56.9 t; 62.7 short tons)
Prime mover(s)	English Electric 4SRKT Mark II (4-cylinder diesel)
Power output	600 shp (450 kW) at 850 rpm
Coupling system	Drophead buckeye
Track gauge	1,435 mm (4 ft 8+1⁄2 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 noise their engine units make.^[2]^[3]

^ 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.
^ "Preserved Thumpers". Preservedthumpers.com. Archived from the original on 19 August 2014. Retrieved 11 October 2017.
^ 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.

[sd001-1] 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.

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