British Rail Class 205

British Rail Class 205 (3H)
205029 in BR green livery at Reading in 1992
In service	September 1957 – December 2004
Manufacturer	BR Eastleigh
Number built	34 trainsets
Formation	2/3 cars per trainset
Capacity	114 2nd class, 13 1st class[1]
Operators	Southern Region of British Railways Network South East Connex South Central Southern
Specifications
Car length	19.51 m (64 ft 0.1 in) 19.34 m (63 ft 5.4 in) 19.51 m (64 ft 0.1 in)
Width	2.8 m (9 ft 2.24 in)
Maximum speed	75 mph (121 km/h)
Weight	56 t (55.1 long tons; 61.7 short tons) 30 t (29.5 long tons; 33.1 short tons) 32 t (31.5 long tons; 35.3 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[2]
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The British Rail Class 205 (3H) diesel-electric multiple units were built by BR at Eastleigh from 1957 to 1962, and in service for 47 years from BR Southern Region to Connex South Central and finally to the Southern franchise. They were eventually replaced by Class 171 Turbostar units.