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Chesapeake & Ohio classes J-1 and J-2
When hauling the new steel passenger cars over the Allegheny Mountains, the class F-15 Pacific locomotives quickly reached their limits, so that the trains could not consist of more than six cars. As a remedy, a new t...
| Chesapeake & Ohio classes J-1 and J-2Remove | |
|---|---|
| Variant | |
| Built | 1911-1912 |
| Manufacturers | ALCO |
| Wheel arrangement | 2D1 |
| Gauge | 1435 mm |
| Length | 26800 mm |
| Service mass | 149686 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Chesapeake & Ohio classes J-1 and J-2Remove |
|---|---|
| Built | 1911-1912 |
| Manufacturers | ALCO |
| Wheel arrangement | 4-8-2 (Mountain) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Chesapeake & Ohio classes J-1 and J-2Remove |
|---|---|
| Length | 26.80 m |
| Wheelbase | 11.41 m |
| Total wheelbase | 23.20 m |
| Service mass | 149.7 t |
| Adhesion mass | 108 t |
| Total mass | 249.1 t |
| Rigid wheelbase | 5.03 m |
| Axle load | 27 t |
| Water capacity | 45,425 l |
| Fuel capacity | 13.6 t (coal) |
Boiler
| Property | Chesapeake & Ohio classes J-1 and J-2Remove |
|---|---|
| Grate area | 6.178 m² |
| Firebox surface | 31.401 m² |
| Tube heating surface | 350.245 m² |
| Evaporative heating surface | 381.646 m² |
| Superheater surface | 78.968 m² |
| Total heating surface | 460.6 m² |
Power plant
| Property | Chesapeake & Ohio classes J-1 and J-2Remove |
|---|---|
| Driver diameter | 1,575 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 737 x 711 mm |
Power
| Property | Chesapeake & Ohio classes J-1 and J-2Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,088 kW (2,839 PS) |
| Starting effort | 258.5 kN |
Calculated values
| Property | Chesapeake & Ohio classes J-1 and J-2Remove |
|---|---|
| Factor of adhesion | 1 : 4.10 |
| Optimal speed | 50 km/h |
| Power-to-weight ratio | 13.9 kW/t |
| Heating Surface Equivalent | 696.6 m² |
| Cylinder volume/HSE | 1 : 870.16 |
| Adhesive weight/Total | 1 : 1.39 |
| Tractive force/Heating surface | 1 : 11.72 |
| Grate area/Heating surface | 1 : 74.56 |
| Firebox/Tube surface | 1 : 11.15 |
| Total/Superheater | 1 : 4.83 |
