Originally built for this privately run railroad, the Y3 design proved attractive for other railroads in Sweden.The Hassleholm-Markaryds Jarnvag (HMJ) bought some in 1921, followed by the Landsrona & Halsingsborgs (L&HJ) in 1928-1929. Nationalization in the early 1930s meant a gradual migration of these engines to the SJ (Statens Jarnvagar) over the next decade.
Those that had been counter-balanced for a 12.5 metric ton axle loading (27,558 lb) were eventually rebalanced to the 14.5-ton standard represented by the specifications. The last of these engines were withdrawn from SJ service by 1970.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | Y3 |
| Locobase ID | 4067 |
| Railroad | Bergslagernas (BJ) |
| Country | Sweden |
| Whyte | 2-6-2T |
| Number in Class | 25 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 25 |
| Builder | |
| Year | 1915 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 31,967 / 14,500 |
| Weight on Drivers (lbs / kg) | 95,460 / 43,300 |
| Engine Weight (lbs / kg) | 136,686 / 62,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 136,686 / 62,000 |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.20 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 53 / 26.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 55.10 / 1400 |
| Boiler Pressure (psi / kPa) | 156 / 10.80 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.5" x 24" / 470x610 |
| Tractive Effort (lbs / kg) | 19,767 / 8966.17 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.83 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 19.36 / 1.80 |
| Evaporative Heating Surface (sq ft / m2) | |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | |
| Evaporative Heating Surface/Cylinder Volume | |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3020 |
| Same as above plus superheater percentage | 3020 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |