Stockholm-Nynas 4-4-2 Locomotives in Sweden

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 10200)

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

Snall described this entry as the largest tank locomotive in Sweden.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID10200
Number in Class
Road Numbers
Number Built
BuilderNydqvist & Holm (NOHAB)
Valve GearWalschaert
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)70,548 / 32,000
Engine Weight (lbs / kg)146,607 / 66,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)146,607 / 66,500
Tender Water Capacity (gals / ML)2146 / 8.13
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.60 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)59 / 29.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)68.90 / 1750
Boiler Pressure (psi / kPa)198.70 / 13.70
High Pressure Cylinders (dia x stroke) (in / mm)18.11" x 25.2" / 460x640 (1)
Low Pressure Cylinders (dia x stroke) (in / mm)27.56" x 25.2" / 700x640 (1)
Tractive Effort (lbs / kg)14,150 / 6418.34
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.99
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)20.66 / 1.92
Evaporative Heating Surface (sq ft / m2)1037 / 96.39
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1037 / 96.39
Evaporative Heating Surface/Cylinder Volume276.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4105
Same as above plus superheater percentage4105
Same as above but substitute firebox area for grate area
Power L1
Power MT

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