NSB Class XXI

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NSB Class XXI
XXI-1.jpg
NSB locomotive class XXI number 1 photographed at Dübs & Co. Locomotive Works before delivery to the Setesdal Line.
Photograph by Dübs & Co., 1894.
Type and origin
Power typeSteam
BuilderDübs & Co. (2)
Thunes Mekaniske Værksted (1),
Hamar Jernstøberi (1)
Serial numberDübs 3172–3173,
Thune 4,
Hamar 77
Build date1894 (2), 1901 (1) 1912 (1)
Total produced4
Specifications
Configuration:
 • Whyte2-6-2T
 • UIC1′C1′t n2
Gauge3 ft 6 in (1,067 mm)
Driver dia.36 in (914.4 mm)
Minimum curve330 ft (100.6 m)
Length27 ft 3 in (8.31 m)
Loco weight18.4 long tons (20.6 short tons; 18.7 t)
Fuel typeCoal
Fuel capacity1,760 lb (800 kg)
Water cap460 imp gal (2,100 L; 550 US gal)
Firebox:
 • Firegrate area
7.5 sq ft (0.70 m2)
Boiler pressure145 psi (1.00 MPa)
Heating surface407.6 sq ft (37.87 m2)
CylindersTwo, outside
Cylinder size11 in × 18 in (279.4 mm × 457.2 mm)
or 11.5 in × 18 in (292.1 mm × 457.2 mm)
Loco brakeHand brake, Carpenter brake from 1900
Performance figures
Maximum speed25 mph (40 km/h)
Career
OperatorsNorges Statsbaner
Numbers1, 2, 5, 7
LocaleSetesdal Line

NSB Class XXI is a steam locomotive class designed by the Norwegian State Railways exclusively for use on the Setesdal Line.

External links[edit]

  • Entry at Norwegian Railway Club
Heritage locomotive on the Setesdal Line