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Frisco Lines class 4200
The last and heaviest Mikados built for the Frisco were the 20 locomotives numbered 4200 to 4219. Like most of their predecessors, they had drivers of 63 inches and cylinders of 27 by 32 inches. At a boiler pressure o...
| Frisco Lines class 4200Remove | |
|---|---|
| Variant | Standard |
| Built | 1930 |
| Manufacturers | Baldwin |
| Wheel arrangement | 1D1 |
| Gauge | 1435 mm |
| Length | |
| Service mass | 170456 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Frisco Lines class 4200 Standard Remove |
|---|---|
| Built | 1930 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Frisco Lines class 4200 Standard Remove |
|---|---|
| Wheelbase | 11.46 m |
| Service mass | 170.5 t |
| Adhesion mass | 124.6 t |
| Total mass | 276.1 t |
| Rigid wheelbase | 5.13 m |
| Axle load | 31.2 t |
| Water capacity | 45,425 l |
| Fuel capacity | 15.4 t (coal) |
Boiler
| Property | Frisco Lines class 4200 Standard Remove |
|---|---|
| Grate area | 7.46 m² |
| Firebox surface | 36.232 m² |
| Tube heating surface | 371.055 m² |
| Evaporative heating surface | 407.287 m² |
| Superheater surface | 178.374 m² |
| Total heating surface | 585.7 m² |
Power plant
| Property | Frisco Lines class 4200 Standard Remove |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 16.2 bar |
| Expansion type | simple expansion |
| Cylinders | two, 686 x 813 mm |
Power
| Property | Frisco Lines class 4200 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,983 kW (4,056 PS) |
| Starting effort | 329.0 kN |
| Starting effort booster | 42.703 kN |
Calculated values
| Property | Frisco Lines class 4200 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.72 |
| Optimal speed | 55 km/h |
| Power-to-weight ratio | 17.5 kW/t |
| Heating Surface Equivalent | 945.2 m² |
| Cylinder volume/HSE | 1 : 635.30 |
| Adhesive weight/Total | 1 : 1.37 |
| Tractive force/Heating surface | 1 : 11.73 |
| Grate area/Heating surface | 1 : 78.51 |
| Firebox/Tube surface | 1 : 10.24 |
| Total/Superheater | 1 : 2.28 |
