British Rail Class 17

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Clayton Type 1
British Railways class 17
D8574 at Glasgow Works.
Power type Diesel-electric
Builder Clayton Equipment Company & Beyer, Peacock & Co.
Build date 1962–1965
Total production 117
Configuration Bo-Bo
UIC classification Bo'Bo'
Gauge ft 8+12 in (1,435 mmstandard gauge
Wheel diameter 3 ft 3 12 in (1.003 m)
Minimum curve 3.5 chains (70 m)
Wheelbase 36 ft 6 in (11.13 m)
Length 50 ft 7 in (15.42 m)
Width 8 ft 9 12 in (2.68 m)
Height 12 ft 8 in (3.86 m)
Locomotive weight 69 long tons (70.1 t)
Fuel capacity 500 imp gal (2,300 l; 600 US gal)
Prime mover Paxman 6ZHXL, 2 off
except D8586–8587: Rolls Royce ‘D’ type V8, 2 off
Generator D8500–D8587: GEC WT800
D8588–D8616: Crompton Parkinson
Traction motors GEC WT421, nose suspended, 4 off
Transmission DC generator, DC traction motors
Multiple working D8500–D8587 Red Diamond
D8588–D8616 Blue Star
Top speed 60 mph (97 km/h)
Power output Engine: 900 hp (671 kW)
At rail: 602 hp (449 kW)
Tractive effort Maximum: 40,000 lbf (178 kN)
Continuous: 8,000 lbf (35.6 kN)
Train heating None; through steam pipe
Locomotive brakeforce 35 long tons-force (349 kN)
Train brakes Vacuum
Career British Railways
Number D8500–D8616
Axle load class Route availability 4
Retired 1968–1971
Disposition One preserved, remainder scrapped.

The Clayton Type 1 (later known as Class 17) was a class of diesel locomotive operated by British Railways.