Stockholm-Saltsjobachu 2-4-2 Locomotives in Sweden

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 10210)

Data from Eric V Snall, "Recent Swedish Locomotives", The Locomotive Magazine, Vol VI (November 1901), p. 189.

These locomotives used the Lentz stayless boiler and corrugated firebox. According to the author, the Lentz's virtues were a lower construction cost, easier changeout of new for old firebox, good water circulation, large steam space, and therefore dry steam. It was very similar to the Vanderbilt boiler.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID10210
Number in Class5
Road Numbers
Number Built5
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)19.69 / 6
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)19.69 / 6
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)82,894 / 37,600
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)82,894 / 37,600
Tender Water Capacity (gals / ML)924 / 3.50
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.10 / 1
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)59.10 / 1500
Boiler Pressure (psi / kPa)169.70 / 11.70
High Pressure Cylinders (dia x stroke) (in / mm)13.78" x 19.69" / 350x500
Tractive Effort (lbs / kg)9126 / 4139.49
Factor of Adhesion (Weight on Drivers/Tractive Effort)
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) 9.68 / 0.90
Evaporative Heating Surface (sq ft / m2)597 / 55.50
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)597 / 55.50
Evaporative Heating Surface/Cylinder Volume175.65
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1643
Same as above plus superheater percentage1643
Same as above but substitute firebox area for grate area
Power L1
Power MT

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