Malmo Kontmenten 4-4-0 Locomotives in Sweden

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 10199)

Data from Eric V Snall, "Recent Swedish Locomotives", The Locomotive Magazine, Volume VI [6] (August 1901), p. 139.

This express cross-compound locomotive, exhibited at the 1897 Stockholm Exhibition, boasted the tallest drivers of any Swedish locomotive. One wonders how often it explored its speed potential, especially the spidery drivers and how small and light it was overall.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID10199
RailroadMalmo Kontmenten
Number in Class
Road Numbers
Number Built
BuilderNydqvist & Holm (NOHAB)
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)54,322 / 24,640
Engine Weight (lbs / kg)92,462 / 41,940
Tender Loaded Weight (lbs / kg)71,760 / 32,550
Total Engine and Tender Weight (lbs / kg)164,222 / 74,490
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)45 / 22.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)78.70 / 2000
Boiler Pressure (psi / kPa)184.20 / 12.70
High Pressure Cylinders (dia x stroke) (in / mm)16.54" x 23.62" / 420x600 (1)
Low Pressure Cylinders (dia x stroke) (in / mm)23.62" x 23.62" / 600x600 (1)
Tractive Effort (lbs / kg)8626 / 3912.69
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.30
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)14.53 / 1.35
Evaporative Heating Surface (sq ft / m2)1045 / 97.06
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1045 / 97.06
Evaporative Heating Surface/Cylinder Volume355.81
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2676
Same as above plus superheater percentage2676
Same as above but substitute firebox area for grate area
Power L1
Power MT

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