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Chesapeake & Ohio class K-4
In order to be able to cope with the increase in fast freight trains caused by the war, the C&O ordered 2-8-4 locomotives. While this wheel arrangement is commonly known as “Berkshire” in North America, the C&O named ...
| Chesapeake & Ohio class K-4Remove | |
|---|---|
| Variant | Standard |
| Built | 1943-1947 |
| Manufacturers | ALCO;Lima |
| Wheel arrangement | 1D2 |
| Gauge | 1435 mm |
| Length | 32055 mm |
| Service mass | 208653 kg |
| Top speed | 113 km/h |
| Power | |
| Engine |
General
| Property | Chesapeake & Ohio class K-4 Standard Remove |
|---|---|
| Built | 1943-1947 |
| Manufacturers | ALCO, Lima |
| Wheel arrangement | 2-8-4 (Berkshire) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Chesapeake & Ohio class K-4 Standard Remove |
|---|---|
| Length | 32.06 m |
| Wheelbase | 12.80 m |
| Total wheelbase | 28.40 m |
| Service mass | 208.7 t |
| Adhesion mass | 132.4 t |
| Total mass | 384.6 t |
| Rigid wheelbase | 5.54 m |
| Axle load | 33.5 t |
| Water capacity | 79,494 l |
| Fuel capacity | 27.2 t (coal) |
Boiler
| Property | Chesapeake & Ohio class K-4 Standard Remove |
|---|---|
| Grate area | 8.389 m² |
| Firebox surface | 42.921 m² |
| Tube heating surface | 400.505 m² |
| Evaporative heating surface | 443.427 m² |
| Superheater surface | 179.489 m² |
| Total heating surface | 622.9 m² |
Power plant
| Property | Chesapeake & Ohio class K-4 Standard Remove |
|---|---|
| Driver diameter | 1,753 mm |
| Boiler pressure | 16.9 bar |
| Expansion type | simple expansion |
| Cylinders | two, 660 x 864 mm |
Power
| Property | Chesapeake & Ohio class K-4 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 3,337 kW (4,537 PS) |
| Top speed | 113 km/h |
| Starting effort | 308.6 kN |
| Starting effort booster | 62.275 kN |
Calculated values
| Property | Chesapeake & Ohio class K-4 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.21 |
| Optimal speed | 66 km/h |
| Power-to-weight ratio | 16.0 kW/t |
| Heating Surface Equivalent | 1,017.0 m² |
| Cylinder volume/HSE | 1 : 581.73 |
| Adhesive weight/Total | 1 : 1.58 |
| Tractive force/Heating surface | 1 : 10.35 |
| Grate area/Heating surface | 1 : 74.25 |
| Firebox/Tube surface | 1 : 9.33 |
| Total/Superheater | 1 : 2.47 |
