Östra Skånes Järnvägar 2-6-0 Locomotives in Sweden

Class Details by Steve Llanso of Sweat House Media

Class L21 (Locobase 20405)

Data from Litt. L21, one of a series of SJ locomotive diagrams archived by Anders Lundbing on [], last accessed 10 June 2017 and Tommy Nilsson's Svenska-lok.se website at Svenska-lok.se, last accessed 20 July 2018.

The four Moguls shown in this entry were originally produced with saturated boilers in 1900 by Nohab (works numbers were 563-566). The Ostra Skanes Railways (OSJ) put in them in Class G and assigned road numbers 14-17. The OSJ used them on the main line between Kristianstad and Eslov in the southern tip of Sweden. (The main line headed slightly northwest out of Kristianstadt to Hassleholm, then southwest to Eslov, located not far from Malmo on the coast.) Boiler pressure was set at 9.8 bar (142 psi).

Over the years, the OSJ took the original design, superheated the boiler and enlarged the cylinders to the Mogul standard 410 x 610 mm while keeping the inside motion. The first two locomotives kept their slide valves but the last two were fitted with piston valves. The Christianstadt-Hassleholm (CHJ) renumbered the quartet 37-40. By this time, their maximum speed was 75 kph (47 mph).

All four engines were taken into the Statens Jarnvagar in 1944 and redesignated L21. The 1669 was retired in 1948. The other three served into the 1960s, 1670 working longest before being retired in 1967. 1668 was preserved for display at the Kristianstadt Railway Museum.

(Inside tube and flue diameters yielded led to a tube heating surface area of 56.20 sq m (605 sq ft) and evaporative heating surface area of 64.15 sq m (690 sq ft))

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID20405
RailroadÖstra Skånes Järnvägar (OSJ)/Statens Jarnvagar (SJ)
Number in Class4
Road Numbers34-37/1667-1670
Number Built4
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.62 / 4.15
Engine Wheelbase (ft / m)20.01 / 6.10
Ratio of driving wheelbase to overall engine wheelbase 0.68
Overall Wheelbase (engine & tender) (ft / m)36.55 / 11.14
Axle Loading (Maximum Weight per Axle) (lbs / kg)21,870 / 9920
Weight on Drivers (lbs / kg)62,611 / 28,400
Engine Weight (lbs / kg)75,663 / 34,320
Tender Loaded Weight (lbs / kg)46,892 / 21,270
Total Engine and Tender Weight (lbs / kg)122,555 / 55,590
Tender Water Capacity (gals / ML)2376 / 9
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.30 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)35 / 17.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)60.20 / 1530
Boiler Pressure (psi / kPa)156.60 / 10.80
High Pressure Cylinders (dia x stroke) (in / mm)16.14" x 24.02" / 410x610
Tractive Effort (lbs / kg)13,835 / 6275.46
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.53
Heating Ability
Tubes (number - dia) (in / mm)95 - 1.89" / 48
Flues (number - dia) (in / mm)15 - 5" / 127
Flue/Tube length (ft / m)10.01 / 3.05
Firebox Area (sq ft / m2)85.57 / 7.95
Grate Area (sq ft / m2)14.75 / 1.37
Evaporative Heating Surface (sq ft / m2)753 / 69.95
Superheating Surface (sq ft / m2)197 / 18.30
Combined Heating Surface (sq ft / m2)950 / 88.25
Evaporative Heating Surface/Cylinder Volume132.38
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2310
Same as above plus superheater percentage2795
Same as above but substitute firebox area for grate area16,214
Power L18160
Power MT861.97

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