Data from Litt-E10, one of a series of SJ locomotive diagrams archived by Anders Lundbing on [], last accessed 10 June 2017. See also the Bergslagen Railway Society's page at , last accessed 2 June 2015. Works numbers were 2156-2165 in 1947.
This was a mixed-traffic Twelve-wheeler engine that was the last class of steam locomotives to be built for the Statens JSrnvSgar. It was built in 1947 to meet growing demand for freight power.
Based on the early-1930s sextet of E9 Twelve-wheelers (Locobase 20217), the E10s featured three-cylinder power, a unique solution for the SJ, roller bearings, slightly more firebox heating surface area, and enclosed cabs. All were delivered with smoke deflectors.
According to Svenska-Lok, converting some of the engines to oil-burning led to a couple of serious roundhouse fires.
Ten years after their introduction, the entire class was based at Oestersund. Distributed among several depots over the next decade, all ten remained in service through 1968
After their retirement from active service, several of the class were placed in a contingent reserve of 150 locomotives. Only four were scrapped; the other six were sold or donated to museums.
Running 1748, says the Bergslagen, is too expensive to undertake very often and the engine is too powerful for most of the museum's train runs. The oil fuel is "smelly" (Google's translation), but during periods of high fire danger, this engine was preferable to the coal burners in the collection. It was sold to the Landeryds museum in 2006.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | E10 |
Locobase ID | 2472 |
Railroad | Statens Jarnvagar (SJ) |
Country | Sweden |
Whyte | 4-8-0 |
Number in Class | 10 |
Road Numbers | 1739-1748 |
Gauge | Std |
Number Built | 10 |
Builder | Nydqvist & Holm (NOHAB) |
Year | 1947 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 16.24 / 4.95 |
Engine Wheelbase (ft / m) | 28.22 / 8.60 |
Ratio of driving wheelbase to overall engine wheelbase | 0.58 |
Overall Wheelbase (engine & tender) (ft / m) | 47.57 / 14.50 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 28,219 / 12,800 |
Weight on Drivers (lbs / kg) | 111,995 / 50,800 |
Engine Weight (lbs / kg) | 163,583 / 74,200 |
Tender Loaded Weight (lbs / kg) | 92,594 / 42,000 |
Total Engine and Tender Weight (lbs / kg) | 256,177 / 116,200 |
Tender Water Capacity (gals / ML) | 4356 / 16.50 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 7.70 / 7 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 55.10 / 1400 |
Boiler Pressure (psi / kPa) | 198.70 / 1370 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17.72" x 24.02" / 450x610 (3) |
Tractive Effort (lbs / kg) | 34,678 / 15729.69 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.23 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 125 - 1.89" / 48 |
Flues (number - dia) (in / mm) | 28 - 5.236" / 133 |
Flue/Tube length (ft / m) | 14.76 / 4.50 |
Firebox Area (sq ft / m2) | 139.93 / 13 |
Grate Area (sq ft / m2) | 30.14 / 2.80 |
Evaporative Heating Surface (sq ft / m2) | 1619 / 150.40 |
Superheating Surface (sq ft / m2) | 549 / 51 |
Combined Heating Surface (sq ft / m2) | 2168 / 201.40 |
Evaporative Heating Surface/Cylinder Volume | 157.43 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 5989 |
Same as above plus superheater percentage | 7486 |
Same as above but substitute firebox area for grate area | 34,755 |
Power L1 | 12,881 |
Power MT | 1014.25 |