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Virginian class PA
In 1920, ALCO-Richmond built six Pacifics for the Virginian which were designated class PA and numbered 210 to 215. For passenger service on mountainous lines, they had drivers of only 69 inches. Their cylinders measu...
| Virginian class PARemove | |
|---|---|
| Variant | Standard |
| Built | 1920 |
| Manufacturers | ALCO |
| Wheel arrangement | 2C1 |
| Gauge | 1435 mm |
| Length | |
| Service mass | 135171 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Virginian class PA Standard Remove |
|---|---|
| Built | 1920 |
| Manufacturers | ALCO |
| Wheel arrangement | 4-6-2 (Pacific) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Virginian class PA Standard Remove |
|---|---|
| Wheelbase | 10.59 m |
| Total wheelbase | 21.51 m |
| Service mass | 135.2 t |
| Adhesion mass | 85.7 t |
| Total mass | 220.5 t |
| Rigid wheelbase | 3.71 m |
| Axle load | 28.9 t |
| Water capacity | 39,747 l |
| Fuel capacity | 12.7 t (coal) |
Boiler
| Property | Virginian class PA Standard Remove |
|---|---|
| Grate area | 6.197 m² |
| Firebox surface | 27.221 m² |
| Tube heating surface | 289.951 m² |
| Evaporative heating surface | 317.171 m² |
| Superheater surface | 84.077 m² |
| Total heating surface | 401.2 m² |
Power plant
| Property | Virginian class PA Standard Remove |
|---|---|
| Driver diameter | 1,753 mm |
| Boiler pressure | 13.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 660 x 711 mm |
Power
| Property | Virginian class PA Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,088 kW (2,839 PS) |
| Starting effort | 197.1 kN |
Calculated values
| Property | Virginian class PA Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.27 |
| Optimal speed | 64 km/h |
| Power-to-weight ratio | 15.4 kW/t |
| Heating Surface Equivalent | 621.4 m² |
| Cylinder volume/HSE | 1 : 784.03 |
| Adhesive weight/Total | 1 : 1.58 |
| Tractive force/Heating surface | 1 : 10.26 |
| Grate area/Heating surface | 1 : 64.75 |
| Firebox/Tube surface | 1 : 10.65 |
| Total/Superheater | 1 : 3.77 |
