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Southern Railway (USA) class Ls-2
Based on the class Ls-1 Mallets , the Southern had the No. 4050 built in 1926 with simple expansion and a slightly smaller boiler. Since this proved its worth, four Ls-1 were also rebuilt to simple expansion and in 19...
| Southern Railway (USA) class Ls-2Remove | |
|---|---|
| Variant | |
| Built | 1926 |
| Manufacturers | Baldwin |
| Wheel arrangement | (1D)D1 ma |
| Gauge | 1435 mm |
| Length | |
| Service mass | 203210 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Southern Railway (USA) class Ls-2Remove |
|---|---|
| Built | 1926 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-8-8-2 (Mikado Mallet) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Southern Railway (USA) class Ls-2Remove |
|---|---|
| Wheelbase | 17.30 m |
| Service mass | 203.2 t |
| Adhesion mass | 176.9 t |
| Total mass | 321.9 t |
| Rigid wheelbase | 4.70 m |
| Water capacity | 37,854 l |
| Fuel capacity | 14.5 t (coal) |
Boiler
| Property | Southern Railway (USA) class Ls-2Remove |
|---|---|
| Grate area | 7.711 m² |
| Firebox surface | 31.123 m² |
| Tube heating surface | 417.135 m² |
| Evaporative heating surface | 448.258 m² |
| Superheater surface | 125.419 m² |
| Total heating surface | 573.7 m² |
Power plant
| Property | Southern Railway (USA) class Ls-2Remove |
|---|---|
| Driver diameter | 1,448 mm |
| Boiler pressure | 14.5 bar |
| Expansion type | simple expansion |
| Cylinders | four, 584 x 762 mm |
Power
| Property | Southern Railway (USA) class Ls-2Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,386 kW (3,244 PS) |
| Starting effort | 442.1 kN |
Calculated values
| Property | Southern Railway (USA) class Ls-2Remove |
|---|---|
| Factor of adhesion | 1 : 3.93 |
| Optimal speed | 34 km/h |
| Power-to-weight ratio | 11.7 kW/t |
| Heating Surface Equivalent | 854.7 m² |
| Cylinder volume/HSE | 1 : 955.89 |
| Adhesive weight/Total | 1 : 1.15 |
| Tractive force/Heating surface | 1 : 16.10 |
| Grate area/Heating surface | 1 : 74.40 |
| Firebox/Tube surface | 1 : 13.40 |
| Total/Superheater | 1 : 3.57 |
