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Richmond, Fredericksburg & Potomac Generals, Governors and Statesmen classes
In 1937, the RF&P received its first five 4-8-4 locomotives from Baldwin. They got the numbers 551 to 555 and were named after Civil War generals from Virginia, hence the designation “Generals class”. They were very p...
General
| Property | Richmond, Fredericksburg & Potomac Generals, Governors and Statesmen classes Remove |
|---|---|
| Built | 1938, 1942 |
| Manufacturers | Baldwin |
| Wheel arrangement | 4-8-4 (Northern) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Richmond, Fredericksburg & Potomac Generals, Governors and Statesmen classes Remove |
|---|---|
| Wheelbase | 14.05 m |
| Rigid wheelbase | 6.10 m |
| Total wheelbase | 29.83 m |
| Service weight | 185 t |
| Adhesive weight | 118.6 t |
| Axle load | 29.7 t |
| Total weight | 312.9 t |
| Water capacity | 60,567 l |
| Fuel capacity | 15.4 t (coal) |
Boiler
| Property | Richmond, Fredericksburg & Potomac Generals, Governors and Statesmen classes Remove |
|---|---|
| Grate area | 8.036 m² |
| Firebox surface | 46.73 m² |
| Tube heating surface | 351.731 m² |
| Evaporative heating surface | 398.462 m² |
| Superheater surface | 123.097 m² |
| Total heating surface | 521.6 m² |
Power plant
| Property | Richmond, Fredericksburg & Potomac Generals, Governors and Statesmen classes Remove |
|---|---|
| Driver diameter | 1,956 mm |
| Boiler pressure | 17.9 bar |
| Expansion type | simple expansion |
| Cylinders | two, 686 x 762 mm |
Power
| Property | Richmond, Fredericksburg & Potomac Generals, Governors and Statesmen classes Remove |
|---|---|
| Power source | steam |
| Estimated power | 3,505 kW (4,765 PS) |
| Starting effort | 279.2 kN |
Calculated values
| Property | Richmond, Fredericksburg & Potomac Generals, Governors and Statesmen classes Remove |
|---|---|
| Factor of adhesion | 1 : 4.17 |
| Optimal speed | 77 km/h |
| Power-to-weight ratio | 18.9 kW/t |
| Heating Surface Equivalent | 878.3 m² |
| Cylinder volume/HSE | 1 : 640.95 |
| Adhesive weight/Total | 1 : 1.56 |
| Tractive force/Heating surface | 1 : 11.18 |
| Grate area/Heating surface | 1 : 64.90 |
| Firebox/Tube surface | 1 : 7.53 |
| Total/Superheater | 1 : 3.24 |
