SNCB Class 77
Encyclopedia
The SNCB Class 77 is a class of 4 axle B'B' diesel hydraulic shunting and freight locomotives manufactured at the beginning of the 2000s by Siemens Schienenfahrzeugtechnik and later by Vossloh
at the Maschinenbau Kiel
plant in Kiel
, Germany for the National Railway Company of Belgium (SNCB/NMBS).
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.
The locomotives were variants of the standard MaK
G1200 series design, and are considered a development of the MaK G1205
type. The locomotive is an off-centre cab design with a two speed voith hydraulic tranmission 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.
Due to its relatively low power the locomotives work in multiple on heavy freight trains.
Vossloh
Vossloh AG is a German transport technology manufacturer based in the Westphalian town of Werdohl. The group has 4,700 employees , and generated sales of €1.2 billion, of which approximately 60% came from the rail infrastructure division, and the remainder from the motive power and components...
at the Maschinenbau Kiel
Maschinenbau Kiel
Maschinenbau Kiel GmbH designed, manufactured and marketed marine diesel engines, diesel locomotives and tracked vehicles under the MaK brand name. The three primary operating divisions of Maschinenbau Kiel GmbH were sold to different companies in the 1990s.Rheinmetall acquired the military...
plant in Kiel
Kiel
Kiel is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 238,049 .Kiel is approximately north of Hamburg. Due to its geographic location in the north of Germany, the southeast of the Jutland peninsula, and the southwestern shore of the...
, Germany for the National Railway Company of Belgium (SNCB/NMBS).
Background and design
The initial order for 90 locomotives was given to SiemensSiemens
Siemens may refer toSiemens, a German family name carried by generations of telecommunications industrialists, including:* Werner von Siemens , inventor, founder of Siemens AG...
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.
The locomotives were variants of the standard MaK
Mak
Mak is a Chinese surname. It is commonly transliterated as Mak in Hong Kong, based on the Cantonese pronunciation of the Chinese character; and is commonly transliterated as Mai in China, based on the Mandarin pronunciation. Other transliterations of the surname include Mack, Mark, Mac, and Mach...
G1200 series design, and are considered a development of the MaK G1205
MaK G 1205
The MaK G 1205 is a class of four axle B'B' diesel-hydraulic locomotives built by the Maschinenbau Kiel factory.-Description and operations:The locomotives are of a similar design to the MaK G 1204 BB locomotives, with hydraulic tranzmission, B'B' wheel arrangement, and off-centre cab.The first...
type. The locomotive is an off-centre cab design with a two speed voith hydraulic tranmission 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
Straight engine
Usually found in four- and six-cylinder configurations, the straight engine, or inline engine is an internal-combustion engine with all cylinders aligned in one row, with no offset...
.
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:| SNCB number |
Radio control |
Cab Radio |
ATB Automatische treinbeïnvloeding Automatische TreinBeïnvloeding or ATB is a Dutch train protection system developed in the 1950s. Its installation was spurred by the Harmelen train disaster of 1962.... |
Notes |
|---|---|---|---|---|
| 7701-7718 | Yes | Yes | No | Fitted with Automatic coupler; not approved for Netherlands |
| 7719-7728 | Approved for limited operations in Netherlands | |||
| 7729-7770 | No | |||
| 7771-7790 | Yes | Approved for Netherlands and Germany (2004); PZB Punktförmige Zugbeeinflussung PZB or Indusi is an intermittent cab signalling system and train protection system used in Germany, Austria, Slovenia, Croatia, Romania, Israel and on one line in Canada.... system |
||
| 7791-7865 | No | No | Can operate in Netherlands when in multiple with locos with ATB or radio | |
| 7866-7870 | ~ | Yes | Fitted with ATB and PZB in 2008 for work in Germany (Iron Rhine line) |
See also
- NS Class 6400NS Class 6400The NS Class 6400 is a type of 4 axle diesel-electric freight locomotive. 120 were built by MaK and ABB between 1988 and 1994 for Nederlandse Spoorwegen.-Design and description:...
similar concept diesel electric freight locomotives built by MaKMakMak is a Chinese surname. It is commonly transliterated as Mak in Hong Kong, based on the Cantonese pronunciation of the Chinese character; and is commonly transliterated as Mai in China, based on the Mandarin pronunciation. Other transliterations of the surname include Mack, Mark, Mac, and Mach...
/SiemensSiemensSiemens may refer toSiemens, a German family name carried by generations of telecommunications industrialists, including:* Werner von Siemens , inventor, founder of Siemens AG...
between 1988-95 for the railways of the Netherlands.
External links
- Images: SNCB série 77, www.rail.lu
- Images: Belgian freight diesel class 77, wwww.railfaneurope.net