Class 66 (66-028) EWS Cemment
Power type 	Diesel-electric
Builder 	Electro-Motive Diesel
Model 	JT42CWR or Series 66
Build date 	1998-2008
Total production 	446
Configuration 	Co-Co
UIC classification 	Co'Co'
Gauge 	4 ft 8 1⁄2 in (1,435 mm) Standard gauge
Bogies 	HTCR radial
Wheel diameter 	1066mm
Minimum curve 	4 chains (80.46m)
Wheelbase 	17.29m (between bogies)
4.15m (bogies)
Length 	21.4 m (70 ft 3 in)
Width 	2.65 m (8 ft 8 in)
Height 	3.9 m (12 ft 10 in)
Locomotive weight 	129.6 tonnes (127.6 LT; 142.9 ST)
Fuel capacity 	6,400 litres (1,400 imp gal; 1,700 US gal)
Prime mover 	EMD 12N-710G3B-EC
Class 66/9: EMD 12N-710G3B-T2
Alternator 	GM-EMD AR8
Traction motors 	6 of GM-EMD D43-TR
Multiple working 	AAR system (Classes 59, 66 & 67)
Top speed 	Class 66/6: 65 mph (105 km/h)
Balance of fleet: 75 mph (121 km/h)
Power output 	Engine: 3,300 bhp (2,500 kW)
at rail: 3,000 bhp (2,200 kW)
Tractive effort 	Maximum: 409 kN (91,900 lbf) at starting
Continuous: 260 kN (58,500 lbf) at 15.9 mph (25.6 km/h)
Train heating 	None
Locomotive brakeforce 	68 tonnes
Train brakes 	Westinghouse PBL Air