PROFILPELAJAR.COM

Specifications
Specifications
Configuration:;
• UIC	Bo'Bo'
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Wheel diameter	1,000 mm (39.37 in)
Length	14.7 m (48 ft 2+3⁄4 in) (21/5); 14.09 m (46 ft 2+3⁄4 in) (21/6); 14.4 m (47 ft 2+7⁄8 in) (21/9)
Width	3.3 m (10 ft 9+7⁄8 in)
Height	4.8 m (15 ft 9 in)
Loco weight	87 t (86 long tons) (21/5); 80 t (79 long tons) (21/6); 90 t (89 long tons) (21/9)
Prime mover	CAT 3512 B DITA-SC (21/5); MTU 8V 4000R41L (21/6); MTU 12V 396TC13 (21/9)
Transmission	Hydraulic / L5r4szeU2 by Voith; Diesel electric / three phase electrical by ABB Group
Train heating	None
Loco brake	Air disc (21/5 and/6); Air (21/9)

Type and origin
Type and origin
Power type	Diesel-hydraulic; Diesel-electric
Builder	MaK, Kiel, Germany
Model	DE6400; DE1004; G1206; G1000
Build date	1990-92 (diesel-electric); 2005-06 (diesel-hydraulic)
Total produced	10 (diesel-electric); 6 (diesel-hydraulic)

British Rail Class 21 (MaK)
British Rail Class 21 (MaK)
	NS 6450 in 2009 - this locomotive was subsequently procured by Eurotunnel
Power type
Type and origin
Power type	Diesel-hydraulic; Diesel-electric
Builder	MaK, Kiel, Germany
Model	DE6400; DE1004; G1206; G1000
Build date	1990-92 (diesel-electric); 2005-06 (diesel-hydraulic)
Total produced	10 (diesel-electric); 6 (diesel-hydraulic)
Configuration:;
Specifications
Configuration:;
• UIC	Bo'Bo'
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Wheel diameter	1,000 mm (39.37 in)
Length	14.7 m (48 ft 2+3⁄4 in) (21/5); 14.09 m (46 ft 2+3⁄4 in) (21/6); 14.4 m (47 ft 2+7⁄8 in) (21/9)
Width	3.3 m (10 ft 9+7⁄8 in)
Height	4.8 m (15 ft 9 in)
Loco weight	87 t (86 long tons) (21/5); 80 t (79 long tons) (21/6); 90 t (89 long tons) (21/9)
Prime mover	CAT 3512 B DITA-SC (21/5); MTU 8V 4000R41L (21/6); MTU 12V 396TC13 (21/9)
Transmission	Hydraulic / L5r4szeU2 by Voith; Diesel electric / three phase electrical by ABB Group
Train heating	None
Loco brake	Air disc (21/5 and/6); Air (21/9)
Maximum speed
Performance figures
Maximum speed	100 km/h (62 mph)
Power output	1,570 kW (2,110 hp) (21/5); 1,100 kW (1,500 hp) (21/6); 950 kW (1,270 hp) (21/9)
Operators
Career
Operators	DB Cargo France; Getlink
Numbers	21544-21547; 21610-21611; 21901-21910

The second use of the TOPS classification Class 21 for locomotives used on the British railway network came through the use of a number of related diesel-hydraulic and diesel-electric locomotives procured following the opening of the Channel Tunnel. The total of 16 locomotives were obtained by two separate operators, with some used for freight, and others to propel service trains and as "Thunderbird" locomotives.

History

In the early 1980s, Maschinenbau Kiel introduced its MaK DE 1002 design of diesel-electric locomotive, which was chosen by Nederlandse Spoorwegen as the basis of its Class 6400 freight locomotive.^[3] In 1991, Eurotunnel procured five similar locomotives as its Class 0001, for use both to operate service trains through the Channel Tunnel and as rescue locomotives.^[4]

In 2005, Euro Cargo Rail (ECR) was formed as a freight operator in France by English, Welsh and Scottish Railway (EWS). Its initial operations were carried out by a quartet of Vossloh G1206 diesel-hydraulic locomotives.^[5] Although these locomotives were intended for use in France, maintenance was planned to be carried out at EWS's depot at Dollands Moor, close to the Eurotunnel terminal at Cheriton. Because the locomotives would be operating on railways in Great Britain, they were allocated numbers in the TOPS system as Class 21.^[6] Two similar G1000 locomotives were procured in 2007.^[7]

In 2009, Eurotunnel's five locomotives were used extensively for rescue operations following severe snow.^[8] As a consequence, the company identified a need to have greater availability of these units, and so procured a pair of Class 6400 locomotives from DB Schenker Nederland in November 2010.^[9] At the same time, Eurotunnel registered its locomotives on TOPS - the superficial similarity to the ECR locomotives led to the Eurotunnel units also being assigned as Class 21.^[10] Eurotunnel acquired a further three secondhand units from the Netherlands in 2016.

Fleet details

Class	Operator	No. Built	Year built	TOPS Number Range	Other numbers	Type	Notes
21/5	Euro Cargo Rail	4	2005-06	21544 - 21547	FB1544 - FB1547^[11]^[12]^[13]^[14]	G1206	21544 - 21545 off TOPS registration^[1]
21/6	Euro Cargo Rail	2	2005-06	21610 - 21611	FB1610 - FB1611^[15]^[16]	G1000
21/9	Getlink	10	1990-92	21901 - 21905	0001 - 0005^[4]	DE1004	Original Eurotunnel locomotives
				21906 - 21907	NS6456 - NS6457^[17]^[18]	DE6400	Purchased from DB in 2010
				21906 - 21907	0006 - 0007		Purchased from DB in 2010
				21908 - 21910	NS6450 - NS6451^[19]^[20] NS6447^[21]		Purchased from DB in 2016
				21908 - 21910	0008 - 0010		Purchased from DB in 2016