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Bulgarian State Railway series 600.76
The Bulgarian State Railways needed powerful freight locomotives for the narrow gauge railway in the Rhodopes with gradients of three percent and curve radii of 60 meters. These were based on the Reichsbahn class 99[h...
General
| Property | Bulgarian State Railway series 600.76Remove |
|---|---|
| Built | 1940, 1949 |
| Manufacturers | BMAG, Fablok |
| Wheel arrangement | 2-10-2T (Santa Fé) |
| Gauge | 760 mm (Bosnian gauge) |
Dimensions and weights
| Property | Bulgarian State Railway series 600.76Remove |
|---|---|
| Length | 11.26 m |
| Wheelbase | 8.00 m |
| Rigid wheelbase | 4.20 m |
| Empty weight | 46.8 t |
| Service weight | 62 t |
| Adhesive weight | 50 t |
| Axle load | 10 t |
| Water capacity | 7,000 l |
| Fuel capacity | 4 t (coal) |
Boiler
| Property | Bulgarian State Railway series 600.76Remove |
|---|---|
| Grate area | 2 m² |
| Evaporative heating surface | 87.6 m² |
| Superheater surface | 32.6 m² |
| Total heating surface | 120.2 m² |
Power plant
| Property | Bulgarian State Railway series 600.76Remove |
|---|---|
| Driver diameter | 850 mm |
| Boiler pressure | 16 bar |
| Expansion type | simple expansion |
| Cylinders | two, 460 x 400 mm |
Power
| Property | Bulgarian State Railway series 600.76Remove |
|---|---|
| Power source | steam |
| Indicated power | 625 kW (850 PS) |
| Top speed | 45 km/h |
| Starting effort | 135.4 kN |
Calculated values
| Property | Bulgarian State Railway series 600.76Remove |
|---|---|
| Factor of adhesion | 1 : 3.62 |
| Optimal speed | 29 km/h |
| Power-to-weight ratio | 10.1 kW/t |
| Adhesive weight/Total | 1 : 1.24 |
| Tractive force/Heating surface | 1 : 23.53 |
| Grate area/Heating surface | 1 : 60.10 |
| Total/Superheater | 1 : 2.69 |
