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Page views since 2023-01-26: 691061
Norwegian State Railways type 25
Norway | 1901
42 produced
A unit in the port of Trondheim
A unit in the port of Trondheim
Stadtarchiv Trondheim
Variant25 a25 b25 d25 e
General
Built1901, 1909-1922
ManufacturerHamar Jernstøberi, Baldwin, Thunes, Norsk Maskin Industri, SLM
Axle config0-6-0T (Six-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length28 ft 5 5/16 in
Wheelbase10 ft 2 13/16 in
Rigid wheelbase10 ft 2 13/16 in
Empty weight57,100 lbs54,454 lbs61,288 lbs55,556 lbs
Service weight77,162 lbs73,855 lbs79,807 lbs73,193 lbs
Adhesive weight77,162 lbs73,855 lbs79,807 lbs73,193 lbs
Axle load25,794 lbs24,692 lbs26,676 lbs24,471 lbs
Water capacity1,400 us gal1,215 us gal1,110 us gal
Fuel capacity2,646 lbs (coal)
Boiler
Grate area12.6 sq ft
Tube heating area624.3 sq ft592 sq ft505.9 sq ft679.2 sq ft
Superheater area236.8 sq ft
Variant25 a25 b25 d25 e
Power Plant
Driver diameter41.7 in
Boiler pressure174 psi
Expansion typesimple
Cylinderstwo, 14 3/16 x 19 11/16 in
Power
Power sourcesteam
Estimated power268 hp (200 kW)402 hp (300 kW)369 hp (275 kW)
Optimal speed12 mph18 mph17 mph
Top speed25 mph
Starting effort14,014 lbf
Calculated Values
steam locomotive
switcher
tank locomotive
secondary line
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