FO Gm 4/4

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Gm 4/4
MGB Furka 001 039 070 FO Gm 4 4.jpg
Numbering: 70
Number: 1
Manufacturer: Arnold Jung locomotive factory
Year of construction (s): 1966
Axis formula : B'B '
Gauge : 1000 mm ( meter gauge )
Length over buffers: 12,280 mm
Service mass: 37.6 t
Top speed: 40 km / h
Hourly output : 330 kW
Number of traction motors: 2

The Gm 4/4 70 of the Matterhorn-Gotthard-Bahn (MGB) is a narrow-gauge diesel locomotive .

history

The locomotive was built in 1966 by the German Arnold Jung locomotive factory and delivered to the Virkkala lime works in Finland . After working there, it was handed over to the Kymi Kymmene wood processing company in 1971 . 1980 bought Furka-Oberalp railway (FO) them up and set them as Switcher in Oberwald VS one. After it had received a maneuvering platform, a pulling and pushing device according to the RhB standard, a vacuum brake, a compressed air maneuvering brake and a radio device on both sides , it was used as a construction service vehicle with the orange paintwork intended for such vehicles and given the number 71 . In this role she was used until March 1981 during the construction of the Furka Base Tunnel . Then she stayed in Oberwald for rescue, construction, shunting and snow clearing services. In 2000 she was stationed for shunting trips at the intermediate approach to the Gotthard Base Tunnel in Sedrun . The number was changed to 70 some time after the merger of Furka-Oberalp-Bahn and BVZ Zermatt-Bahn , as the BVZ already had a switch engine with the number 71. In the fall of 2014, the machine was handed over to the Steam Railway Association Furka mountain route in Realp, where it continues to be active in construction train service.

Nickname

The Gm 4/4 70 goes by the nickname elk because of its Finnish origin . Technically, it could be called a crocodile because it has two low articulated stems.

technology

The axles are driven by a three-speed gearbox , a jackshaft and coupling rods from two diesel engines housed in each front end. It can only drive on adhesion routes because it has no gear .

Similar locomotives

The Jung company had already built three similar locomotives for meter-gauge narrow-gauge railways in southern Germany in 1952. The locomotives were used as the V29 series by the Deutsche Bundesbahn until the late 1960s. One copy was kept by the German Railway Association .

At the Härtsfeld museum railway there is an almost identical, but slightly weaker version, which was also built by Jung in 1954. The locomotive was in service with the Luzern-Stans-Engelberg-Bahn as Gm 4/4 111 from 1974 to 2005 and was baptized there with the name Jumbo . It also carries appropriate signs.

literature

  • Hans-Bernhard Schönborn: Swiss locomotives . GeraMond, Munich 2004, ISBN 3-7654-7176-3 , p. 76-77 .
  • Wolfgang Finke, Hans Schweers: The vehicles of the Furka-Oberalp-Bahn. 1913-1999. Brig – Furka – Disentis, Schöllenenbahn, Furka-Oberalp-Bahn. Aachen, Schweers + Wall 1999, ISBN 3-89494-111-1 .

Web links

Individual evidence

  1. https://www.dfb.ch/index.php?id=1513&L=0
  2. http://www.geralds-bahnseiten.de/rmjumbo.htm