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MaK G 1203 BB
Mittelweserbahn (MWB) G 1203 BB
Type and origin Power type Diesel Builder Maschinenbau Kiel Build date 1982–1991 Total produced 25
Specifications Configuration: ​  • UIC B'B' Gauge 1,435 mm (4 ft 8+1⁄2 in) Wheel diameter 1,000 mm (39.37 in) (new) Minimum curve 60 m (197 ft) Wheelbase bogie centre distance 5.800 m (19 ft 0.3 in) axle distance 2.400 m (94.49 in) Length 12.500 m (41 ft 0.1 in) Width 3.100 m (10 ft 2.05 in) Height 4.220 m (13 ft 10.14 in) Fuel capacity 2,500 L (550 imp gal; 660 US gal) Prime mover MTU 8V 396 TC13 : 745 kW (999 hp) Cummins engine : 761 kW (1,021 hp)* Transmission Voith L4r4zU2
Performance figures Maximum speed 33–70 km/h (21–43 mph)
For export to Gabon

The MaK G 1203 BB is a type of four axle B'B' off-centre cab locomotive built by Maschinenbau Kiel.

Design and operations

The locomotive is an updated version of the MaK G 1201 BB with a MTU 396 engine replacing the MTU 333 engine. The hydrodynamic converter remained the same, a Voith L4r4zU2.

The locomotive design is similar to the MaK G 1202 BB and MaK G 1204 BB but with an eight-cylinder V engine instead of the twelve-cylinder engines on the higher-powered locomotives; the external dimensions of are identical, and the appearance very similar.

Nineteen locomotives were built for private railways of Germany (and Austria), including Seehafen Kiel (Port of Kiel), and the Klockner steel works (now ArcelorMittal Bremen).

Gabon locomotives

Six locomotives were built in 1984 for the railways of Gabon (Office du chemin de fer transgabonais) or OCTRA, with Cummins engines instead of MTU engines. They received numbers "BB 531" to "BB 536"

References

1. ^ "MaK - G 1203 BB". www.loks-aus-kiel.de (in German).

External links

• "MaK G1203 BB". www.privat.bahn.de (in German).
• Images: "MAK G 1203 Fotos". www.bahnbilder.de (in German).

v t e MaK/VSFT/Vossloh Kiel locomotives
1st generation 1954–1967	240 B 240 C 400C 450 C 600 D 650 D 800 D 850 D 1000 D 1200 D
2nd generation 1965–1978	G 320 B G 500 C G 700 C G 850 BB G 1100 BB
3rd generation 1977–2016	Light shunters G 321 B G 322 G 761 C G 762 C G 763 C G 764 C G 765 DE 501 DE 502 Heavy shunters/Light locomotives G 1201 BB G 1202 BB G 1203 BB G 1204 BB G 1205 G 1206/G 1206-2 DE 1002 DE 1003 DE 1004
4th generation 2001–2016	Light shunters G 400 B Heavy shunters/Light locomotives G 800 BB G 1000 BB G 1700 BB Line locomotives G 2000 BB
5th generation 2008–present	Light shunters G 6 Heavy shunters/Light locomotives G 12 DE 12 G 18 DE 18
6th generation 2022–present	Modula
Export builds	TCDD DH33100 SJ T21 SJ Tp / T23 Indian WDS-3 Indian ZDM-2 NS 6400 Eurotunnel 0001 British Rail 21 NSB Di 6 / Dispolok ME 26 NSB Di 8 SNCB HLD 77 SNCF BB 61000
and locomotives	V 60 / 360–365 V 65 V 80 V 90 / 290–296 V 100 / 211–214 TCDD DH11500 V 160 V 200 / 220–221
Experimental locomotives and rebuilts	DE 1024 / DB 240 DH 1004 DH 1504
Locomotive types in italics are in production. G-type locomotives have diesel-hydraulic transmissions, DE-type locomotives have diesel-electric transmissions.

• MaK locomotives
• Standard gauge locomotives of Gabon
• Railway locomotives introduced in 1982