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Seaboard Air Line class D-3
The class D-3 consisted of eight light Decapods built in 1930 for the Seaboard Air Line. They were ordered after the SAL had leased the Georgia, Florida & Alabama in 1927 and found out about the versatility of their s...
General
| Property | Seaboard Air Line class D-3Remove |
|---|---|
| Built | 1930 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-10-0 (Decapod) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Seaboard Air Line class D-3Remove |
|---|---|
| Wheelbase | 8.61 m |
| Rigid wheelbase | 5.99 m |
| Total wheelbase | 18.56 m |
| Empty weight | 88.5 t |
| Service weight | 96.2 t |
| Adhesive weight | 86.2 t |
| Axle load | 17.2 t |
| Total weight | 158.5 t |
| Water capacity | 26,498 l |
| Fuel capacity | 10.9 t (coal) |
Boiler
| Property | Seaboard Air Line class D-3Remove |
|---|---|
| Grate area | 5.045 m² |
| Firebox surface | 18.302 m² |
| Tube heating surface | 199.37 m² |
| Evaporative heating surface | 217.672 m² |
| Superheater surface | 51.375 m² |
| Total heating surface | 269.0 m² |
Power plant
| Property | Seaboard Air Line class D-3Remove |
|---|---|
| Driver diameter | 1,422 mm |
| Boiler pressure | 13.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 610 x 711 mm |
Power
| Property | Seaboard Air Line class D-3Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,193 kW (1,622 PS) |
| Starting effort | 206.9 kN |
Calculated values
| Property | Seaboard Air Line class D-3Remove |
|---|---|
| Factor of adhesion | 1 : 4.09 |
| Optimal speed | 35 km/h |
| Power-to-weight ratio | 12.4 kW/t |
| Heating Surface Equivalent | 411.9 m² |
| Cylinder volume/HSE | 1 : 1,007.80 |
| Adhesive weight/Total | 1 : 1.12 |
| Tractive force/Heating surface | 1 : 16.06 |
| Grate area/Heating surface | 1 : 53.33 |
| Firebox/Tube surface | 1 : 10.89 |
| Total/Superheater | 1 : 4.24 |
