Bulgarian State 0-8-2 Locomotives in Bulgaria
Class Details by Steve Llanso of Sweat House Media
Class 48 (Locobase 1601)
[
] (viewed 18 July 2003) for data and information. Firetube diameter is inner dimension.
Although these shunters weren't particularly successful in their first assignments on the coal trains from Pernik to Sofia, they obviously had some utility as heavy switchers at the Poduyane yards. 21 years after the initial trio was delivered, the BDZ's G Dimitrov State Locomotive Factory built 3 more to the original plans. As they were supplanted by diesels, some of the class was moved to Russe in the northeast and others were mothballed as a war-emergency reserve.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 48 |
| Locobase ID | 1601 |
| Railroad | Bulgarian State |
| Country | Bulgaria |
| Whyte | 0-8-2T |
| Number in Class | 6 |
| Road Numbers | 48.01-6 |
| Gauge | Std |
| Number Built | 6 |
| Builder | Hanomag |
| Year | 1930 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.29 / 4.05 |
| Engine Wheelbase (ft / m) | 21.49 / 6.55 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.62 |
| Overall Wheelbase (engine & tender) (ft / m) | 21.49 / 6.55 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 33,400 / 15,150 |
| Weight on Drivers (lbs / kg) | 133,600 / 60,600 |
| Engine Weight (lbs / kg) | 155,646 / 70,600 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2376 / 9 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 56 / 28 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 43.30 / 1100 |
| Boiler Pressure (psi / kPa) | 188.50 / 1300 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19.69" x 21.65" / 500x550 |
| Tractive Effort (lbs / kg) | 31,059 / 14088.14 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.30 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 328 - 1.732" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 123.74 / 11.50 |
| Grate Area (sq ft / m2) | 32.28 / 3 |
| Evaporative Heating Surface (sq ft / m2) | 1523 / 141.50 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1523 / 141.50 |
| Evaporative Heating Surface/Cylinder Volume | 199.61 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 6085 |
| Same as above plus superheater percentage | 6085 |
| Same as above but substitute firebox area for grate area | 23,325 |
| Power L1 | 3818 |
| Power MT | 252.01 |