NSB Class XXI

Specifications
Specifications
Configuration:;
• Whyte	2-6-2T
• UIC	1′C1′t n2
Gauge	1,067 mm (3 ft 6 in)
Driver dia.	914 mm (36.0 in)
Minimum curve	100 m (330 ft)
Length	8,300 mm (27.2 ft)
Adhesive weight	14.7 t
Loco weight	18.7 t
Fuel type	Coal
Fuel capacity	800 kg (1,800 lb)
Water cap.	2.1 t
Firebox:; • Firegrate area	0.7 m2 (7.5 sq ft)
Boiler pressure	1.00 MPa (145 psi)
Heating surface	37.87 m2 (407.6 sq ft)
Cylinders	Two, outside
Cylinder size	279.4 mm × 457.2 mm (11 in × 18 in); or 292.1 mm × 457.2 mm (11.5 in × 18 in)
Loco brake	Hand brake, Carpenter brake from 1900

Type and origin
Type and origin
Power type	Steam
Builder	Dübs & Co. (2); Thunes Mekaniske Værksted (1),; Hamar Jernstøberi (1)
Serial number	Dübs 3172–3173,; Thune 4,; Hamar 77
Build date	1894 (2), 1901 (1) 1912 (1)
Total produced	4

NSB Class XXI
NSB Class XXI
	NSB locomotive class XXI number 1 photographed at Dübs & Co. Locomotive Works before delivery to the Setesdal Line.; Photograph by Dübs & Co., 1894.
Power type
Type and origin
Power type	Steam
Builder	Dübs & Co. (2); Thunes Mekaniske Værksted (1),; Hamar Jernstøberi (1)
Serial number	Dübs 3172–3173,; Thune 4,; Hamar 77
Build date	1894 (2), 1901 (1) 1912 (1)
Total produced	4
Configuration:;
Specifications
Configuration:;
• Whyte	2-6-2T
• UIC	1′C1′t n2
Gauge	1,067 mm (3 ft 6 in)
Driver dia.	914 mm (36.0 in)
Minimum curve	100 m (330 ft)
Length	8,300 mm (27.2 ft)
Adhesive weight	14.7 t
Loco weight	18.7 t
Fuel type	Coal
Fuel capacity	800 kg (1,800 lb)
Water cap.	2.1 t
Firebox:; • Firegrate area	0.7 m2 (7.5 sq ft)
Boiler pressure	1.00 MPa (145 psi)
Heating surface	37.87 m2 (407.6 sq ft)
Cylinders	Two, outside
Cylinder size	279.4 mm × 457.2 mm (11 in × 18 in); or 292.1 mm × 457.2 mm (11.5 in × 18 in)
Loco brake	Hand brake, Carpenter brake from 1900
Maximum speed
Performance figures
Maximum speed	40 km/h (25 mph)
Operators
Career
Operators	Norwegian State Railways
Numbers	1, 2, 5, 7
Locale	Setesdal Line

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

External links

Heritage locomotive on the Setesdal Line

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