Belgian Railways Class 77
4 ft 8+1⁄2 in) standard gauge[1]Wheel diameter 1,000 mm (39.37 in) (new)[1] Minimum curve 75 m (246.06 ft)[1] Wheelbase bogie centre distance 7.770 m (25 ft 5.9 in)[2]
axle distance 2.400 m (7 ft 10.5 in)[2] Length 15.590 m (51 ft 1+3⁄4 in)[1] Width 3.052 m (10 ft 1⁄8 in)[1] Height 4.220 m (13 ft 10+1⁄8 in)[1] Loco weight 90 t
(88.6 long tons; 99.2 short tons)[1] Fuel capacity 4,200 L
(920 imp gal; 1,100 US gal)[1] Prime mover Anglo Belgian Corporation 6DZC-1000-144A[1] Alternator Auxiliary 3 phase 65–130 kW[3] Transmission Voith Hydraulic L4r4zseU2a[2] Loco brake pneumatic (Knorr-Bremse)[3]
axle distance 2.400 m (7 ft 10.5 in)[2]
(88.6 long tons; 99.2 short tons)[1]
(920 imp gal; 1,100 US gal)[1]
| Performance figures | |
|---|---|
| Maximum speed | 100 or 60 km/h (62 or 37 mph)[1][2] |
| Power output | 1,150 kW (1,540 hp)[1] |
| Tractive effort | 210–265 kN (47,000–60,000 lbf)[1] |
| Career | |
|---|---|
| Operators | SNCB/NMBS |
| Class | 77 |
| Numbers | 7701–7870[1] |
| 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.[4] Siemens sold its locomotive manufacturer division (Siemens Schienenfahrzeugtechnik) to Vossloh in 1998.[5]
The locomotives were variants of the standard MaK G 1200 series design,[2] and are considered a development of the MaK G 1205 type.[1] The locomotive is an off-centre cab design with a two-speed Voith hydraulic transmission driving all axles via cardan shafts.[2] Auxiliary electrical supply is provided by an engine mounted alternator.[4] Unlike many other MaK locomotives which use a MTU or CAT 12-cylinder V engine the locomotive has an ABC 6-cylinder inline engine.[3]
The first locomotive was delivered in October 1999, and worked satisfactorily; a second order for 80 locomotives was given in June 2001.[4][6]
Operations
The first locomotive entered service in February 2004.[7] All 170 units were operational by June 2005.[8]
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:[4]
| NMBS/SNCB number | Radio control | Cab Radio | ATB | Notes |
|---|---|---|---|---|
| 7701–7708 | Yes | Yes | No | Fitted with automatic coupler for hill shunting; not approved for Netherlands |
| 7709–7728 | Approved for limited operations in Netherlands[6] | |||
| 7729–7770 | No | |||
| 7771–7790 | Yes | Approved for Netherlands[9] and Germany (2004);[10] fitted with PZB system | ||
| 7791–7865 | No | No | Can operate in Netherlands when in multiple with locos with ATB or radio[9] | |
| 7866–7870 | ~ | Yes | Fitted with ATB and PZB in 2008 for work in Germany (Iron Rhine line)[11] |
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
- ^ a b c d e f g h i j k l m n o p q r s "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.
- ^ a b c d e f "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.
- ^ a b c David De Neef (editor). "Locomotives des séries 77 et 78". www.belrail (in French). Fiche technique.
{{cite web}}:|author=has generic name (help) - ^ a b c d David De Neef (editor). "Locomotives des séries 77 et 78". www.belrail.be (in French).
{{cite web}}:|author=has generic name (help) - ^ "Historie". Vossloh (in German). Archived from the original on 2008-12-21.
- ^ a b "Nieuwsbrief Issue 48". www.netherlandsrailways.co.uk. Benelux Railways Society. March 2004. Class 77. Archived from the original on 2009-02-07.
- ^ David De Neef (ed.). "Les premières 77 en service commercial". www.belrail.be (in French).
- ^ David De Neef (ed.). "L'ensemble de la série 77/78 opérationnelle". www.berail.be (in French).
- ^ a b David De Neef (ed.). "Les 77/78 homologuées aux Pays-Bas". www.belrail.be (in French).
- ^ David De Neef (ed.). "Les 77 homologuées en Allemagne". www.belrail.be (in French).
- ^ David De Neef (ed.). "Cinq motrices supplémentaires pour circuler sur le Rhin d'acier". www.belrail.be (in French).
External links
Wikimedia Commons has media related to SNCB/NMBS Class 77.
- Images: SNCB série 77, www.rail.lu
- Images: Belgian freight diesel class 77, www.railfaneurope.net
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Electric locomotives |
|---|
- 15
- 18 (Siemens)
- 19 (Siemens)
25 kV 50 Hz & 15 kV 16⅔Hz AC
- 16
- 18 (Alsthom)
- 28 (Bombardier)
- 29 (Bombardier)
Diesel locomotives |
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Previous classification |
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- List of SNCB/NMBS classes
- Electric locomotives of Belgium
- Diesel locomotives of Belgium
- National Railway Company of Belgium locomotives
MaK/VSFT/Vossloh Kiel locomotives | |||||||
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| 1st generation 1954–1967 |
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| 2nd generation 1965–1978 |
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| 3rd generation 1977–2016 |
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| 4th generation 2001–2016 |
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| 5th generation 2008–present |
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| 6th generation 2022–present |
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| Export builds | |||||||
 and  locomotives | |||||||
| Experimental locomotives and rebuilts | |||||||
Locomotive types in italics are in production. G-type locomotives have diesel-hydraulic transmissions, DE-type locomotives have diesel-electric transmissions. | |||||||
