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Jura-Simplon and Swiss Federal Railways B 3/4
Between 1896 and 1902, the Jura-Simplon Railway got 75 2-6-0 locomotives for mixed traffic which had been built by the SLM. They were three-cylinder compounds where the single inside high-pressure cylinder drove the f...
| Jura-Simplon and Swiss Federal Railways B 3/4Remove | |
|---|---|
| Variant | JS 301-375 |
| Built | 1896-1902 |
| Manufacturers | SLM |
| Wheel arrangement | 1C |
| Gauge | 1435 mm |
| Length | 16235 mm |
| Service mass | 54800 kg |
| Top speed | 75 km/h |
| Power | |
| Engine |
General
| Property | Jura-Simplon and Swiss Federal Railways B 3/4JS 301-375 |
|---|---|
| Built | 1896-1902 |
| Manufacturers | SLM |
| Wheel arrangement | 2-6-0 (Mogul) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Jura-Simplon and Swiss Federal Railways B 3/4JS 301-375 |
|---|---|
| Length | 16.24 m |
| Wheelbase | 6.31 m |
| Total wheelbase | 12.36 m |
| Empty mass | 49.5 t |
| Service mass | 54.8 t |
| Adhesion mass | 44.5 t |
| Total mass | 83.8 t |
| Rigid wheelbase | 3.90 m |
| Axle load | 14.9 t |
| Water capacity | 11,700 l |
| Fuel capacity | 5 t (coal) |
Boiler
| Property | Jura-Simplon and Swiss Federal Railways B 3/4JS 301-375 |
|---|---|
| Grate area | 2.3 m² |
| Firebox surface | 12.3 m² |
| Tube heating surface | 116.2 m² |
| Evaporative heating surface | 128.5 m² |
| Total heating surface | 128.5 m² |
Power plant
| Property | Jura-Simplon and Swiss Federal Railways B 3/4JS 301-375 |
|---|---|
| Driver diameter | 1,520 mm |
| Boiler pressure | 14 bar |
| Expansion type | compound |
| Cylinders | three, HP: 500 x 600 mm and LP: 540 x 600 mm |
Power
| Property | Jura-Simplon and Swiss Federal Railways B 3/4JS 301-375 |
|---|---|
| Power source | steam |
| Estimated power | 550 kW (748 PS) |
| Top speed | 75 km/h |
| Starting effort | 94.8 kN |
| Starting effort simple | 113.8 kN |
Calculated values
| Property | Jura-Simplon and Swiss Federal Railways B 3/4JS 301-375 |
|---|---|
| Factor of adhesion | 1 : 4.60 |
| Optimal speed | 35 km/h |
| Power-to-weight ratio | 10.0 kW/t |
| Heating Surface Equivalent | 190.0 m² |
| Cylinder volume/HSE | 1 : 1,472.50 |
| Adhesive weight/Total | 1 : 1.23 |
| Tractive force/Heating surface | 1 : 15.41 |
| Grate area/Heating surface | 1 : 55.87 |
| Firebox/Tube surface | 1 : 9.45 |
