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NSB type 21
Type and origin
Power type
Steam
Builder
NOHAB, Hamar, Thune
Build date
1904 - 1917
Total produced
42
Specifications
Configuration:
• Whyte
2-6-0
• UIC
1'C-3
Gauge
4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.
1,448 mm (4 ft 9.0 in)
Wheelbase
3,352 mm (11 ft 0 in)
Length
14,432 mm (47 ft 4.2 in)
Fuel type
Coal
Fuel capacity
3 t (3.3 short tons; 3.0 long tons)
Water cap.
7.7 m3 (1,700 imp gal)
Boiler pressure
12 bar (170 psi)
Cylinders
2
Performance figures
Maximum speed
Forward: 60 km/h (37 mph) Reverse: 45 km/h (28 mph)
The NSB type 21 was a standard gauge locomotive, suitable for lightly laid lines (10-11 tonnes axle load), introduced in 1904 for the rebuilt Bergen-Vossbanen, and was in use until NSB phased out steam in 1970-71.
^Tractive effort came from an archived page so might not be 100% accurate for all locomotives.
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