Stockholm-Vasteras-Bergslagens 2-8-0 Locomotives in Sweden
Class Details by Steve Llanso of Sweat House Media
Class M3/E6 (Locobase 20109)
Data from Litt E6, one of a series of SJ locomotive diagrams archived by Anders Lundbing on [
], last accessed 10 June 2017 (Snabcon AB advertised its tools for mounting RJ45 connectors on bundled cables.) and Tommy Nilsson's Svenska-lok.se website at Svenska-lok.se, last accessed 21 June 2018. See also "Goods Locomotive for the Stockholm-Vesteras-Bergslagens Ry, Sweden" The Locomotive Magazine, Vol XIX (15 May 1913), p. 99. Works numbers were 1006, 1009 in 1912; 1052-1053, 1073, 1076 in 1915;and 1133-1135 in 1918. Falun supplied the last two--works numbers 297-298--in 1920.
These relatively powerful Consolidations had a significant amount of superheat and 220 mm (8.66") Deeley-designed piston valves to supply the hotter steam to the cylinders.They were bought to haul iron ore trains
(NB: Locobase's specifications show the evaporative heating surface area using the tubes' outer diameter (i.e., the water side). The SJ's calculation used the narrower, fire-side diameters of 42.5 mm and 115 mm (1.67" and 4.53"), tube and flue respectively, which produced a total EHS of 115.5 sq m (1,243 sq ft).)
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | M3/E6 |
| Locobase ID | 20109 |
| Railroad | Stockholm-Vasteras-Bergslagens (SWB) |
| Country | Sweden |
| Whyte | 2-8-0 |
| Number in Class | 11 |
| Road Numbers | M3 64-67, 73-74, 81-85/1703-1713 |
| Gauge | Std |
| Number Built | 11 |
| Builder | Nydqvist & Holm (NOHAB) |
| Year | 1913 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 16.77 / 5.11 |
| Engine Wheelbase (ft / m) | 23.62 / 7.20 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.71 |
| Overall Wheelbase (engine & tender) (ft / m) | 45.60 / 13.90 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 27,558 / 12,500 |
| Weight on Drivers (lbs / kg) | 109,570 / 49,700 |
| Engine Weight (lbs / kg) | 122,797 / 55,700 |
| Tender Loaded Weight (lbs / kg) | 76,721 / 34,800 |
| Total Engine and Tender Weight (lbs / kg) | 199,518 / 90,500 |
| Tender Water Capacity (gals / ML) | 3643 / 13.80 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 55.40 / 1407 |
| Boiler Pressure (psi / kPa) | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20.47" x 24.02" / 520x610 |
| Tractive Effort (lbs / kg) | 26,870 / 12188.04 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.08 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 127 - 1.89" / 48 |
| Flues (number - dia) (in / mm) | 21 - 5" / 127 |
| Flue/Tube length (ft / m) | 13.78 / 4.20 |
| Firebox Area (sq ft / m2) | 134.55 / 12.50 |
| Grate Area (sq ft / m2) | 25.83 / 2.40 |
| Evaporative Heating Surface (sq ft / m2) | 1377 / 127.90 |
| Superheating Surface (sq ft / m2) | 382 / 35.50 |
| Combined Heating Surface (sq ft / m2) | 1759 / 163.40 |
| Evaporative Heating Surface/Cylinder Volume | 150.50 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4494 |
| Same as above plus superheater percentage | 5483 |
| Same as above but substitute firebox area for grate area | 28,562 |
| Power L1 | 9636 |
| Power MT | 775.53 |