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SNCB/NMBS 77
Diesel locomotive #7798 of the Belgian State Railways (SNCB – NMBS), 2010
Type and origin Power type Diesel Builder Vossloh Schienentechnik/Vossloh Locomotives Serial number 1000918 – 1001007 1001217 – 1001296 Build date 1999–2005 Total produced 170
Specifications Configuration: ​  • UIC B'B' Gauge 1,435 mm (4 ft 8+1⁄2 in) standard gauge Wheel diameter 1,000 mm (39.37 in) (new) Minimum curve 75 m (246.06 ft) Wheelbase bogie centre distance 7.770 m (25 ft 5.9 in) axle distance 2.400 m (7 ft 10.5 in) Length 15.590 m (51 ft 1+3⁄4 in) Width 3.052 m (10 ft 1⁄8 in) Height 4.220 m (13 ft 10+1⁄8 in) Loco weight 90 t (88.6 long tons; 99.2 short tons) Fuel capacity 4,200 L (920 imp gal; 1,100 US gal) Prime mover Anglo Belgian Corporation 6DZC-1000-144A Engine type V6 Alternator Auxiliary 3 phase 65–130 kW Cylinders 6 Transmission Voith Hydraulic L4r4zseU2a Loco brake pneumatic (Knorr-Bremse)
Performance figures Maximum speed 100 or 60 km/h (62 or 37 mph) Power output 1,150 kW (1,540 hp) Tractive effort 210–265 kN (47,000–60,000 lbf)
Career Operators SNCB/NMBS Class 77 Numbers 7701–7870 Disposition in service

The NMBS/SNCB Class 77 (also known as HLD 77 or HLR 77) is a class of 4 axle B'B' road switcher diesel hydraulic locomotive designed for shunting and freight work manufactured at the beginning of the 2000s by Vossloh Schienentechnik/Vossloh Locomotives at the Maschinenbau Kiel plant in Kiel, Germany for the National Railway Company of Belgium (SNCB/NMBS).

Background and design

The initial order for 90 locomotives was given to Siemens in 1997 to replace an aging diesel fleet; the railway opted for a locomotive suitable for both shunting and mainline use, rather than separate classes. Siemens sold its locomotive manufacturer division (Siemens Schienenfahrzeugtechnik) to Vossloh in 1998.

The locomotives were variants of the standard MaK G 1200 series design, and are considered a development of the MaK G 1205 type. The locomotive is an off-centre cab design with a two-speed Voith hydraulic transmission driving all axles via cardan shafts. Auxiliary electrical supply is provided by an engine mounted alternator. Unlike many other MaK locomotives which use a MTU or CAT 12-cylinder V engine the locomotive has an ABC 6-cylinder inline engine.

The first locomotive was delivered in October 1999, and worked satisfactorily; a second order for 80 locomotives was given in June 2001.

Operations

The first locomotive entered service in February 2004. All 170 units were operational by June 2005.

Due to its relatively low power the locomotives work in multiple on heavy freight trains.

Equipment variations

Sets of the class vary in the type of equipment they carry:

See also

• NS Class 6400 similar concept diesel electric freight locomotives built by MaK/Siemens between 1988 and 1995 for the railways of the Netherlands.

References

1. ^ "MaK – HLD 77 für die SNCB". www.loks-aus-kiel.de (in German). Archived from the original on 2007-09-27. Retrieved 2007-08-20.
2. ^ "HLD 77 diesel-hydraulic, multi-purpose locomotive for SNCB (Belgian Railways) equipped with Voith L 4r4 zseU2a turbo reversing transmission" (PDF). www.voithturbo.com. Voith.
3. ^ David De Neef (editor). "Locomotives des séries 77 et 78". www.belrail (in French). Fiche technique. {{cite web}}: |author= has generic name (help)
4. ^ David De Neef (editor). "Locomotives des séries 77 et 78". www.belrail.be (in French). {{cite web}}: |author= has generic name (help)
5. "Historie". Vossloh (in German). Archived from the original on 2008-12-21.
6. ^ "Nieuwsbrief Issue 48". www.netherlandsrailways.co.uk. Benelux Railways Society. March 2004. Class 77. Archived from the original on 2009-02-07.
7. David De Neef (ed.). "Les premières 77 en service commercial". www.belrail.be (in French).
8. David De Neef (ed.). "L'ensemble de la série 77/78 opérationnelle". www.berail.be (in French).
9. ^ David De Neef (ed.). "Les 77/78 homologuées aux Pays-Bas". www.belrail.be (in French).
10. David De Neef (ed.). "Les 77 homologuées en Allemagne". www.belrail.be (in French).
11. David De Neef (ed.). "Cinq motrices supplémentaires pour circuler sur le Rhin d'acier". www.belrail.be (in French).

External links

• Images: SNCB série 77, www.rail.lu
• Images: Belgian freight diesel class 77, www.railfaneurope.net

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.

• National Railway Company of Belgium locomotives
• Diesel locomotives of Belgium
• B-B locomotives
• Vossloh locomotives
• MaK locomotives
• Railway locomotives introduced in 1999
• Standard gauge locomotives of Belgium
• Diesel–hydraulic locomotives
• Freight locomotives
• Shunting locomotives