loco-info.com - Norwegian State Railways type 15

General
Built	1896-1902
Manufacturer	Dübs & Co., Hartmann, Nylands, Thunes, Hamar Jernstøberi, SLM
Axle config	2-6-0 (Mogul)
Gauge	4 ft 8 1/2 in (Standard gauge)

Dimensions and Weights
Length	47 ft 4 3/16 in
Total wheelbase	38 ft 0 5/16 in
Empty weight	73,855 lbs	81,791 lbs	71,650 lbs
Adhesive weight	64,375 lbs	70,107 lbs	63,052 lbs
Total weight	130,954 lbs	138,671 lbs	128,750 lbs
Water capacity	2,034 us gal		1,849 us gal
Fuel capacity	6,614 lbs (coal)

Boiler
Grate area	13.6 sq ft
Tube heating area	885.9 sq ft	682.4 sq ft
Superheater area		175.5 sq ft	484.4 sq ft

Variant	15 a	rebuilt 15 e	rebuilt 15 h

Power Plant
Driver diameter	57 in
Boiler pressure	174 psi
Expansion type	compound	simple
Cylinders	two, HP: 16 3/4 x 24 in and LP: 25 x 24 in	two, 17 x 24 in

Power
Power source	steam
Estimated power	335 hp (250 kW)	436 hp (325 kW)	469 hp (350 kW)
Optimal speed	18 mph	23 mph	17 mph
Top speed	37 mph
Starting effort	12,047 lbf		18,024 lbf
with start valve	14,456 lbf

Calculated Values
Factor of adhesion	1 : 4.45	1 : 4.85	1 : 3.50
Power-to-weight ratio	0.0026 hp/lb	0.0031 hp/lb	0.0036 hp/lb
Grate area/Heating area	1 : 65.32	1 : 63.25	1 : 86.03
HP/LP cylinders	1 : 2.23

steam locomotive

freight

last changed: 08 2023

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