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Chesapeake & Ohio classes H-1 to H-4
In 1911, ALCO-Richmond built 24 2-6-6-2 Mallets for the Chesapeake & Ohio which were designated class H-2. They had 56-inch drivers and were able to reach speeds of 45 mph . The firebox had a grate of 72.2 square feet...
| Chesapeake & Ohio classes H-1 to H-4Remove | |
|---|---|
| Variant | H-2 |
| Built | 1911 |
| Manufacturers | ALCO |
| Wheel arrangement | (1C)C1 ma |
| Gauge | 1435 mm |
| Length | |
| Service mass | 181437 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Chesapeake & Ohio classes H-1 to H-4H-2 |
|---|---|
| Built | 1911 |
| Manufacturers | ALCO |
| Wheel arrangement | 2-6-6-2 (Mallet Mogul) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Chesapeake & Ohio classes H-1 to H-4H-2 |
|---|---|
| Wheelbase | 14.88 m |
| Total wheelbase | 24.63 m |
| Service mass | 181.4 t |
| Adhesion mass | 153.1 t |
| Total mass | 255.4 t |
| Rigid wheelbase | 3.05 m |
| Water capacity | 34,069 l |
| Fuel capacity | 13.6 t (coal) |
Boiler
| Property | Chesapeake & Ohio classes H-1 to H-4H-2 |
|---|---|
| Grate area | 6.708 m² |
| Firebox surface | 34.095 m² |
| Tube heating surface | 434.229 m² |
| Evaporative heating surface | 468.325 m² |
| Superheater surface | 84.635 m² |
| Total heating surface | 553.0 m² |
Power plant
| Property | Chesapeake & Ohio classes H-1 to H-4H-2 |
|---|---|
| Driver diameter | 1,422 mm |
| Boiler pressure | 15.5 bar |
| Expansion type | compound |
| Cylinders | four, HP: 559 x 813 mm and LP: 889 x 813 mm |
Power
| Property | Chesapeake & Ohio classes H-1 to H-4H-2 |
|---|---|
| Power source | steam |
| Estimated power | 2,386 kW (3,244 PS) |
| Starting effort | 337.3 kN |
| Starting effort simple | 404.8 kN |
Calculated values
| Property | Chesapeake & Ohio classes H-1 to H-4H-2 |
|---|---|
| Factor of adhesion | 1 : 4.45 |
| Optimal speed | 43 km/h |
| Power-to-weight ratio | 13.2 kW/t |
| Heating Surface Equivalent | 808.1 m² |
| Cylinder volume/HSE | 1 : 1,117.72 |
| Adhesive weight/Total | 1 : 1.19 |
| Tractive force/Heating surface | 1 : 12.74 |
| Grate area/Heating surface | 1 : 82.43 |
| Firebox/Tube surface | 1 : 12.74 |
| Total/Superheater | 1 : 5.53 |
