Bergslagernas JSrnvSg 2-8-0 Locomotives in Sweden

Class Details by Steve Llanso of Sweat House Media

Class M3s/E11 (Locobase 20407)

Data from Litt E11, one of a series of SJ locomotive diagrams archived by Anders Lundbing on [], last accessed 10 June 2017 and Tommy Nilsson's website at, last accessed 20 July 2018. . Works numbers were 355-357 in 1930.

The success of the 1927 Bergslagernas three-cylinder Ten-wheelers shown in Locobase 4836 and the upgrading of the right of way allowed the BJ to order three goods locomotives with even larger boilers and grates. In fact, it was one of the largest non-North American Consolidations designs to enter service anywhere. With lots of superheat, good proportions for the boiler, firebox, and grate, and 250 mm (9.84") piston valves feeding each cylinder, the engines nevertheless weighed in with axle loadings of under 18 metric tons.

The trio's main duty was serving the +msl-Goteborg line, which ran down the western side tof Vanern Lake, then east to Vara, southeast to Herrjunga and southwest to the port at Goteborg. In 1948, the BJ was taken into the Statens Jarnvagar, where the class was renamed E11 and renumbered 1849-1851.

All were placed in reserve in 1960

(Inside tube and flue diameters yielded a tube heating surface area of 158.20 sq m (1,703 sq ft) and evaporative heating surface area of 173.2 sq m (1,864 sq ft))

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID20407
RailroadBergslagernas JSrnvSg (BJ)/(SJ)
Number in Class3
Road Numbers119-121/1849-1851
Number Built3
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)18.04 / 5.50
Engine Wheelbase (ft / m)26.57 / 8.10
Ratio of driving wheelbase to overall engine wheelbase 0.68
Overall Wheelbase (engine & tender) (ft / m)56.43 / 17.20
Axle Loading (Maximum Weight per Axle) (lbs / kg)39,242 / 17,800
Weight on Drivers (lbs / kg)156,748 / 71,100
Engine Weight (lbs / kg)182,763 / 82,900
Tender Loaded Weight (lbs / kg)112,877 / 51,200
Total Engine and Tender Weight (lbs / kg)295,640 / 134,100
Tender Water Capacity (gals / ML)5940 / 22.50
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 7.70 / 7
Minimum weight of rail (calculated) (lb/yd / kg/m)65 / 32.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)55.10 / 1400
Boiler Pressure (psi / kPa)213.20 / 14.70
High Pressure Cylinders (dia x stroke) (in / mm)19.69" x 25.98" / 500x660 (3)
Tractive Effort (lbs / kg)49,691 / 22539.49
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.15
Heating Ability
Tubes (number - dia) (in / mm)159 - 1.969" / 50
Flues (number - dia) (in / mm)32 - 5.157" / 131
Flue/Tube length (ft / m)15.09 / 4.60
Firebox Area (sq ft / m2)161.46 / 15
Grate Area (sq ft / m2)32.29 / 3
Evaporative Heating Surface (sq ft / m2)2050 / 190.45
Superheating Surface (sq ft / m2)656 / 60.90
Combined Heating Surface (sq ft / m2)2706 / 251.35
Evaporative Heating Surface/Cylinder Volume149.26
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6884
Same as above plus superheater percentage8536
Same as above but substitute firebox area for grate area42,685
Power L112,490
Power MT702.67

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