Helsingborg-HSssleholms 4-6-0 Locomotives in Sweden
Class Details by Steve Llanso of Sweat House Media
Class H3/A6 (Locobase 20210)
Data from Litt-A6, 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.) For railway identification and much more, see Rolf Sten's Swedish-language Historiskt om Svenska JSrnvSgar (History of Swedish Railways) at [], last accessed 10 June 2017.
Three Swedish builders contributed locomotives to this quartet: Motala (536 in 1915), Nohab (1103 in 1915), and Falun (223 in 1916 for road #22, and 249 in 1918 for road #21).
(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 diameter of 44.5 mm, which produced a total EHS of 116.03 sq m (1,365 sq ft).)
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | H3/A6 |
| Locobase ID | 20210 |
| Railroad | Helsingborg-HSssleholms (HHJ)/Statens Jarnvagar |
| Country | Sweden |
| Whyte | 4-6-0 |
| Number in Class | 4 |
| Road Numbers | 19-22/1541-1544 |
| Gauge | Std |
| Number Built | 4 |
| Builder | several |
| Year | 1915 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.45 / 4.10 |
| Engine Wheelbase (ft / m) | 27.72 / 8.45 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.49 |
| Overall Wheelbase (engine & tender) (ft / m) | 46.26 / 14.10 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 27,558 / 12,500 |
| Weight on Drivers (lbs / kg) | 82,232 / 37,300 |
| Engine Weight (lbs / kg) | 126,325 / 57,300 |
| Tender Loaded Weight (lbs / kg) | 81,350 / 36,900 |
| Total Engine and Tender Weight (lbs / kg) | 207,675 / 94,200 |
| Tender Water Capacity (gals / ML) | 3828 / 14.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.70 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 67.70 / 1720 |
| Boiler Pressure (psi / kPa) | 171.10 / 1180 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20.47" x 24.02" / 520x610 |
| Tractive Effort (lbs / kg) | 21,622 / 9807.59 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.80 |
| 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) | 130.24 / 12.10 |
| Grate Area (sq ft / m2) | 25.83 / 2.40 |
| Evaporative Heating Surface (sq ft / m2) | 1372 / 127.50 |
| Superheating Surface (sq ft / m2) | 366 / 34 |
| Combined Heating Surface (sq ft / m2) | 1738 / 161.50 |
| Evaporative Heating Surface/Cylinder Volume | 149.96 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4420 |
| Same as above plus superheater percentage | 5348 |
| Same as above but substitute firebox area for grate area | 26,964 |
| Power L1 | 11,220 |
| Power MT | 902.42 |