NSB Class 49

The NSB Class 49, nicknamed Dovregubben ("the Dovre Giant"), locomotives were 2-8-4 steam locomotives used to pull heavy trains on the Dovre Line. It is the largest type of steam locomotive in the history of the Norwegian State Railways.

NSB Type 49
Dovregubben at Oppdal station 1935
Type and origin
Power typeSteam
BuilderHamar & Thune (3),
Krupp, (2)
Thune (2)
Build date1935–1941
Total produced7
Specifications
Configuration:
​
 • Whyte2-8-4
 • UIC1′D2′h4v
Gauge1,435 mm (4 ft 8 1⁄2 in) standard gauge
Driver dia.1,525 mm (60.04 in)
Axle load17.5 t (17.2 long tons; 19.3 short tons)
Adhesive weight62.4 t (61.4 long tons; 68.8 short tons)
Loco weight87.2 t (85.8 long tons; 96.1 short tons)
Tender weight17.4 t (17.1 long tons; 19.2 short tons)
Fuel typeCoal
Fuel capacity8.4 t (8.3 long tons; 9.3 short tons)
Water cap27.2 t (26.8 long tons; 30.0 short tons)
Boiler pressure241.8 psi (17.00 kp/cm2; 1,667 kPa)
Heating surface256 m2 (2,760 sq ft)
Superheater:
​
 • Heating area102 m2 (1,100 sq ft)
High-pressure cylinder465 mm × 650 mm (18.31 in × 25.59 in)
Low-pressure cylinder720 mm × 700 mm (28.35 in × 27.56 in)
Performance figures
Maximum speed90 km/h (56 mph)
Power output2,600 bhp (1,900 kW)
Career
OperatorsNSB
ClassType 49
Number in class7
Numbers463, 464, 465, 470, 471, 472 and 473
NicknamesDovregubber
Retired1958
Preserved470

The engines came in three series, the 49a, 49b and 49c. Between 1935 and 1941 five engines were produced by Hamar & Thune, two by Krupp AG.[1] In addition to the seven engines delivered, there were seven engines which were destroyed by a bombing raid during World War II while under construction in Germany, another four were under construction at Thune but were never completed. The engines were retired from service during 1957, stored and finally written off on December 16, 1958 due to dieselization of the Dovre Line.

The numbers of the Dovregubben locomotives were 463, 464, 465, 470, 471, 472 and 473. Engine no. 470 is on display at the Norwegian Railway Museum in Hamar.

Specifications
  • Length:
    • a-series: 22.0 m (72 ft 2 1⁄8 in)
    • b-series: 22.0 m (72 ft 2 1⁄8 in)
    • c-series: 22.3 m (73 ft 2 in)
  • Weight of engine:
    • a-series: 87.2 t (85.8 long tons; 96.1 short tons)
    • b-series: 92.7 t (91.2 long tons; 102.2 short tons)
    • c-series: 88.6 t (87.2 long tons; 97.7 short tons)
  • Weight of tender:
    • a-series: 17.4 t (17.1 long tons; 19.2 short tons)
    • b-series: 17.4 t (17.1 long tons; 19.2 short tons)
    • c-series: 18.4 t (18.1 long tons; 20.3 short tons)
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See also

2-8-4-engines of Norway

References
  1. "Dovregubben". Aschehoug og Gyldendals Store norske leksikon. Kunnskapsforlaget. 2007.


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