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Lehigh Valley class J-55½
The Lehigh Valley had the ability to source large quantities of smaller fragments of anthracite coal as residues from the processing at less than a dollar a ton. In order to be able to use these as fuel for steam loco...
General
| Property | Lehigh Valley class J-55½ superheated |
|---|---|
| Built | 1922 |
| Manufacturers | Lehigh Valley |
| Wheel arrangement | 4-6-0 (Ten-wheeler) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Lehigh Valley class J-55½ superheated |
|---|---|
| Length | 17.41 m |
| Wheelbase | 7.72 m |
| Rigid wheelbase | 4.06 m |
| Total wheelbase | 19.99 m |
| Service weight | 94 t |
| Adhesive weight | 70.3 t |
| Axle load | 25 t |
| Water capacity | 30,283 l |
| Fuel capacity | 10.9 t (coal) |
Boiler
| Property | Lehigh Valley class J-55½ superheated |
|---|---|
| Grate area | 7.897 m² |
| Firebox surface | 18.488 m² |
| Tube heating surface | 201.693 m² |
| Evaporative heating surface | 220.18 m² |
| Superheater surface | 45.801 m² |
| Total heating surface | 266.0 m² |
Power plant
| Property | Lehigh Valley class J-55½ superheated |
|---|---|
| Driver diameter | 1,753 mm |
| Boiler pressure | 14.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 533 x 711 mm |
Power
| Property | Lehigh Valley class J-55½ superheated |
|---|---|
| Power source | steam |
| Estimated power | 1,193 kW (1,622 PS) |
| Starting effort | 138.7 kN |
Calculated values
| Property | Lehigh Valley class J-55½ superheated |
|---|---|
| Factor of adhesion | 1 : 4.97 |
| Optimal speed | 53 km/h |
| Power-to-weight ratio | 12.7 kW/t |
| Heating Surface Equivalent | 404.2 m² |
| Cylinder volume/HSE | 1 : 786.32 |
| Adhesive weight/Total | 1 : 1.34 |
| Tractive force/Heating surface | 1 : 10.89 |
| Grate area/Heating surface | 1 : 33.68 |
| Firebox/Tube surface | 1 : 10.91 |
| Total/Superheater | 1 : 4.81 |
