Bulgarian State 2-6-0 Locomotives in Bulgaria
Class Details by Steve Llanso of Sweat House Media
Class 101 (Locobase 5661)
[
] (viewed 18 July 2003).
These Moguls went through several renumberings, but kept their names: Plovdiv, Arda, Sofia, Tundza, Burgas, Dunav. They were rated at 145 tons up a 2.5% grade at 15 km/h (15.5 mph). According to Trifonov, these pulled the Orient Express and conventional passenger trains on the Tzarigrad-Belovo section until their retirement.
The boiler had a weird arrangement of two steam domes connected by a dry pipe which was intercepted by a shorter dome.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 101 |
| Locobase ID | 5661 |
| Railroad | Bulgarian State |
| Country | Bulgaria |
| Whyte | 2-6-0 |
| Number in Class | 6 |
| Road Numbers | 101-106 |
| Gauge | Std |
| Number Built | 6 |
| Builder | Floridsdorf |
| Year | 1890 |
| Valve Gear | Allan |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.48 / 3.50 |
| Engine Wheelbase (ft / m) | 19.85 / 6.05 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.58 |
| Overall Wheelbase (engine & tender) (ft / m) | 41.51 / 12.65 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 30,314 / 13,750 |
| Weight on Drivers (lbs / kg) | 87,964 / 39,900 |
| Engine Weight (lbs / kg) | 108,467 / 49,200 |
| Tender Loaded Weight (lbs / kg) | 63,493 / 28,800 |
| Total Engine and Tender Weight (lbs / kg) | 171,960 / 78,000 |
| Tender Water Capacity (gals / ML) | 2587 / 9.80 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.80 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 49 / 24.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 63 / 1600 |
| Boiler Pressure (psi / kPa) | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19.09" x 25.59" / 485x650 |
| Tractive Effort (lbs / kg) | 21,893 / 9930.51 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.02 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 204 - 2.047" / 52 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 108.68 / 10.10 |
| Grate Area (sq ft / m2) | 25.18 / 2.34 |
| Evaporative Heating Surface (sq ft / m2) | 1722 / 160 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1722 / 160 |
| Evaporative Heating Surface/Cylinder Volume | 203.13 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4381 |
| Same as above plus superheater percentage | 4381 |
| Same as above but substitute firebox area for grate area | 18,910 |
| Power L1 | 4882 |
| Power MT | 367.07 |