FO Deh 4/4 I.

FO Deh 4/4 I.
FO Deh 51 in Brig
Numbering:	51-55
Number:	5
Manufacturer:	SLM (motor bogies) SIG (locomotive body) BBC (electrical equipment)
Year of construction (s):	1972
Axis formula :	Bo'Bo '
Gauge :	1000 mm ( meter gauge )
Length over buffers:	16,900 mm
Height:	3,880 mm
Width:	2,650 mm
Empty mass:	48.3 t
Top speed:	60 km / h (adhesion) 30 km / h (gear)
Hourly output :	1,032 kW
Driving wheel diameter:	790 mm (adhesion) 688 mm (gear)
Power system :	11 kV 16.7 Hz AC
Power transmission:	Overhead line
Number of traction motors:	4th
Control:	Step switch
Loading area:	11.5 m 2

The Deh 4/4 I is a narrow-gauge luggage railcar series of the former Furka-Oberalp-Bahn (FO), today Matterhorn-Gotthard-Bahn (MGB), for adhesion and cogwheel operation . The series includes five vehicles (numbers 51 to 55). Four mechanically similar but electrically different vehicles were procured as Deh 4/4 21-24 from the Brig-Visp-Zermatt-Bahn (BVZ) and are now also part of the MGB.

history

Comparison of both sides of the car body of the Deh ex BVZ (above) and ex FO (below)

Since the rolling stock was largely out of date in the 1960s and traffic had risen sharply in the winter season, the FO urgently needed more powerful locomotives. A decision was made in favor of high-performance luggage railcars that could freely be used on the entire network. The five Deh 4/4 vehicles were ordered in 1972 and replaced the HGe 2/2 and ABDeh 2/4 , which could no longer handle winter sports traffic on the Schöllenenbahn . In parallel to the railcars, four control cars and eight matching passenger coaches were procured, with which four three-part shuttle trains could be formed. In 1977, an additional fifth shuttle train was put together from existing vehicles.

A replica of the FO-Deh 4/4 received a completely different box, which is why these vehicles were differentiated as Deh 4/4 I and II at the FO. This designation has not been used since the merger to form the MGB; the MGB differentiates the series according to the number ranges 21, 51 and 91.

technology

Deh 4/4 I 54 with the front door open

To save weight, the car body is made of light metal. The equipment cabinets with the electronic and pneumatic equipment are located in the luggage compartment in the middle. The transformer is located under the car body, the bogies each have two motors.

modernization

see FO Deh 4/4 II # modernization

commitment

see FO Deh 4/4 II # operation

List of Deh 4/4 of the Matterhorn-Gotthard-Bahn

Company number	Baptismal name	Installation	status
51	Disentis / Mustér	1972	in operation
52	Tujetsch / Sedrun	1972	in operation
53	Urseren	1972	in operation
54	Goms	1972	in operation
55	Brig	1972	in operation

literature

• Wolfgang Finke, Hans Schweers: The vehicles of the Furka-Oberalp-Bahn 1913-1999 . Brig – Furka – Disentis. Schöllenenbahn. Furka-Oberalp Railway. Schweers + Wall, Aachen 1999, ISBN 3-89494-111-1 .
• Hans-Bernhard-Schönborn: Swiss locomotives . GeraMond, 2004, ISBN 3-7654-7176-3 , pp. 80-81 .

Web links

Commons : MGB Deh 4/4 51–55  - Collection of images, videos and audio files