GB Class 3

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GB Class 3
Gråkallbanen på Hoemsbrua (1958).jpg
In service 1955–1973
Manufacturer Høka
Constructed 1955
Number built 1 tram
1 trailer
Number preserved 1
Fleet numbers 7 (tram)
55 (trailer)
Capacity 40 seats, later 36 seats
Operator(s) Graakalbanen
Depot(s) Munkvoll
Line(s) served Gråkallen Line
Car body construction Wood
Car length 13.0 m (42.7 ft)
Width 2.6 m (8.5 ft)
Doors 4
Weight 16.8 t (16.5 long tons; 18.5 short tons)
Traction system Siemens GBM 431, 4 off
Power output 240 kW (320 hp)
Electric system(s) 600 V DC
Current collection method Pantograph
Track gauge 1,000 mm (3 ft 3 38 in)

GB Class 3 was a single tram and trailer built by Hønefoss Karosserifabrikk for Graakalbanen of Trondheim, Norway.

Each of the four Siemens motors had an effect of 60 kW (80 hp). The trams were criticized for not having sufficient space for baby buggies. Despite running in part in city streets, the trams were 2.6 m (8.5 ft) wide. They had seating for 40, later 36, passengers.[1]

The tram were delivered in 1955. It remained in service until 1973, when it was replaced by the TS Class 7 trams, following the merger of Graakalbanen into Trondheim Trafikkselskap, and the subsequent reorganizing of routes, so the Gråkallen Line was operated onwards along the Lademoen Line. It is preserved as a heritage tram at Trondheim Tramway Museum.[2]


  1. ^ Kjenstad, Rune (1994). På skinner i Bymarka. Baneforlaget. pp. 80–81. ISBN 82-91448-01-9. 
  2. ^ Kjenstad, Rune (2005). Trikken i Trondheim 100 år. Tapir Akademisk Forlag. pp. 359–60. ISBN 82-519-1895-2.