Bulgarian State 4-8-2 Locomotives in Bulgaria
Class Details by Steve Llanso of Sweat House Media
Class 03 (Locobase 1584)
Data from Wikipedia [
], last accessed 27 June 2011.
Wikipedia notes that Henschel's production of the BDZ provided the power and reliability that the railway had been seeking. As wartime demands on Henschel suddenly increased, plans to mass-produce the design were curtailed at ten in addition to the two prototypes.
Originally designed as pure coal burners, the class was converted in 1958 to a mixed fuel oil-coal fuel system that "improved steam production and facilitated service, particularly in mountainous areas."
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 03 |
| Locobase ID | 1584 |
| Railroad | Bulgarian State |
| Country | Bulgaria |
| Whyte | 4-8-2 |
| Number in Class | 12 |
| Road Numbers | 03.01-03.12 |
| Gauge | Std |
| Number Built | 12 |
| Builder | Henschel & Sohn |
| Year | 1941 |
| Valve Gear | Heusinger |
| 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) | |
| Weight on Drivers (lbs / kg) | 152,560 / 69,200 |
| Engine Weight (lbs / kg) | 241,920 / 109,733 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 7392 / 28 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 14.30 / 13 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 64 / 32 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 65 / 1650 |
| Boiler Pressure (psi / kPa) | 232.10 / 1600 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19.69" x 27.56" / 500x700 (3) |
| Tractive Effort (lbs / kg) | 48,645 / 22065.03 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.14 |
| 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) | 52.40 / 4.87 |
| Evaporative Heating Surface (sq ft / m2) | 2411 / 224.07 |
| Superheating Surface (sq ft / m2) | 881 / 81.92 |
| Combined Heating Surface (sq ft / m2) | 3292 / 305.99 |
| Evaporative Heating Surface/Cylinder Volume | 165.49 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 12,162 |
| Same as above plus superheater percentage | 15,446 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |