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Lehigh Valley class K-6b
In 1924, ALCO-Brooks built ten K-6b Pacifics for the Lehigh Valley. Their weight was between that of the K-4 and K-5, but they had the larger 77 inch drivers and the same cylinder dimensions as the K-3. Two others wer...
| Lehigh Valley class K-6bRemove | |
|---|---|
| Variant | Standard |
| Built | 1924-1926 |
| Manufacturers | ALCO;Sayre |
| Wheel arrangement | 2C1 |
| Gauge | 1435 mm |
| Length | |
| Service mass | 131996 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Lehigh Valley class K-6b Standard Remove |
|---|---|
| Built | 1924-1926 |
| Manufacturers | ALCO, Sayre |
| Wheel arrangement | 4-6-2 (Pacific) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Lehigh Valley class K-6b Standard Remove |
|---|---|
| Wheelbase | 11.13 m |
| Total wheelbase | 22.25 m |
| Service mass | 132 t |
| Adhesion mass | 82.1 t |
| Total mass | 221.6 t |
| Rigid wheelbase | 4.17 m |
| Axle load | 27.4 t |
| Water capacity | 39,747 l |
| Fuel capacity | 13.6 t (coal) |
Boiler
| Property | Lehigh Valley class K-6b Standard Remove |
|---|---|
| Grate area | 6.996 m² |
| Firebox surface | 30.472 m² |
| Tube heating surface | 274.715 m² |
| Evaporative heating surface | 305.187 m² |
| Superheater surface | 87.793 m² |
| Total heating surface | 393.0 m² |
Power plant
| Property | Lehigh Valley class K-6b Standard Remove |
|---|---|
| Driver diameter | 1,956 mm |
| Boiler pressure | 14.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 635 x 711 mm |
Power
| Property | Lehigh Valley class K-6b Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,424 kW (3,296 PS) |
| Starting effort | 184.8 kN |
Calculated values
| Property | Lehigh Valley class K-6b Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.36 |
| Optimal speed | 80 km/h |
| Power-to-weight ratio | 18.4 kW/t |
| Heating Surface Equivalent | 633.1 m² |
| Cylinder volume/HSE | 1 : 711.48 |
| Adhesive weight/Total | 1 : 1.61 |
| Tractive force/Heating surface | 1 : 9.82 |
| Grate area/Heating surface | 1 : 56.17 |
| Firebox/Tube surface | 1 : 9.02 |
| Total/Superheater | 1 : 3.48 |
