Data from "Richmond Locomotive for Swedish State Railways," Railway and Locomotive Engineering, Volume 12, No 10 (October 1899), page 436. See also Tommy Nilsson's Svenska-lok website entry on the U class at [], last accessed 17 June 2018. Works numbers were 2841-2850 in 1899.
This decade of side tanks was built as a batch together with ten compound Ten-wheelers for service north of the Arctic Circle. As a sidelight, Locobase reproduces the list of accessory manufacturers involved in producing a relatively small locomotive, as noted by the article: "Nathan lubricators, United States metallic packing, Latrobe tires, French springs, Monitor injectors, Coale safety valves. Star steam gage and magnesia sectional boiler covering."
Tommy Nilsson's svenska-lok site describes the class as "robust" examples of locomotives built to North American standards because the need was too urgent to allow conversion to Swedish standards. After twenty years of service, two were retired and other eight sent to the Ostkustbanan. The last five were scrapped in 1933.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | U |
| Locobase ID | 9515 |
| Railroad | Statens Jarnvagar (SJ) |
| Country | Sweden |
| Whyte | 0-6-0T |
| Number in Class | 10 |
| Road Numbers | 592-601 |
| Gauge | Std |
| Number Built | 10 |
| Builder | Richmond |
| Year | 1899 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12 / 3.66 |
| Engine Wheelbase (ft / m) | 12 / 3.66 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 12 / 3.66 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 75,000 / 34,019 |
| Engine Weight (lbs / kg) | 75,000 / 34,019 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1000 / 3.79 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.50 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 165 / 1140 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22.01" / 381x559 |
| Tractive Effort (lbs / kg) | 14,470 / 6563.49 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.18 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 146 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.50 / 3.20 |
| Firebox Area (sq ft / m2) | 66 / 6.13 |
| Grate Area (sq ft / m2) | 13 / 1.21 |
| Evaporative Heating Surface (sq ft / m2) | 868 / 80.64 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 868 / 80.64 |
| Evaporative Heating Surface/Cylinder Volume | 192.82 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2145 |
| Same as above plus superheater percentage | 2145 |
| Same as above but substitute firebox area for grate area | 10,890 |
| Power L1 | 3513 |
| Power MT | 309.79 |