Nederlandse Speerwegen 0-8-0 Locomotives in Netherlands


Class Details by Steve Llanso of Sweat House Media

Class 4700 (Locobase 4839)

Data and details from Dirty Nico's Steamdepot []

This three-cylinder freight engine design first entered service with the Swedish private railway Trafik AB Grangesberg-Oxelosund Jarnvag (TGOJ). When the Nederlandse Speerwegen looked to replace the hundreds of locomotives destroyed in World War II, they contracted for several types, one of which was this eight-coupled. Most served the NS until 1958.

Edwin Boer, of [] (14 March 2004) says this class was nicknamed "Kerstboom" ("Christmas tree") because of electric marker lights and electric cab lighting.

Principal Dimensions by Steve Llanso of Sweat House Media

Class4700
Locobase ID4839
RailroadNederlandse Speerwegen
CountryNetherlands
Whyte0-8-0
Number in Class35
Road Numbers4701- 4735
GaugeStd
Number Built35
BuilderNydqvist & Holm (NOHAB)
Year1945
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)16.24 / 4.95
Engine Wheelbase (ft / m)16.24 / 4.95
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)47.59 / 14.51
Axle Loading (Maximum Weight per Axle) (lbs / kg)41,226 / 18,700
Weight on Drivers (lbs / kg)164,904 / 74,799
Engine Weight (lbs / kg)164,094 / 74,432
Tender Loaded Weight (lbs / kg)102,734 / 46,599
Total Engine and Tender Weight (lbs / kg)266,828 / 121,031
Tender Water Capacity (gals / ML)5280 / 20
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 6.60 / 6
Minimum weight of rail (calculated) (lb/yd / kg/m)69 / 34.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)53.10 / 1349
Boiler Pressure (psi / kPa)188.50 / 13
High Pressure Cylinders (dia x stroke) (in / mm)19.69" x 25.98" / 500x660 (3)
Tractive Effort (lbs / kg)45,589 / 20678.85
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.62
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)132.35 / 12.30
Grate Area (sq ft / m2)32.50 / 3.02
Evaporative Heating Surface (sq ft / m2)1594 / 148.14
Superheating Surface (sq ft / m2)522 / 48.51
Combined Heating Surface (sq ft / m2)2116 / 196.65
Evaporative Heating Surface/Cylinder Volume116.06
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6126
Same as above plus superheater percentage7658
Same as above but substitute firebox area for grate area31,185
Power L18446
Power MT451.66

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