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Frisco Lines classes 4100, 4135 and 4150
The Frisco Lines received a total of 65 Mikados with additional booster between 1923 and 1926, based on the USRA Heavy Mikado . The first 35 locomotives had Baker valve gear and were fired with coal or oil, depending ...
| Frisco Lines classes 4100, 4135 and 4150Remove | |
|---|---|
| Variant | |
| Built | 1925 |
| Manufacturers | Baldwin |
| Wheel arrangement | 1D1 |
| Gauge | 1435 mm |
| Length | |
| Service mass | 145331 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Frisco Lines classes 4100, 4135 and 4150Remove |
|---|---|
| Built | 1925 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Frisco Lines classes 4100, 4135 and 4150Remove |
|---|---|
| Wheelbase | 11.25 m |
| Total wheelbase | 22.25 m |
| Service mass | 145.3 t |
| Adhesion mass | 111 t |
| Total mass | 254.4 t |
| Rigid wheelbase | 5.11 m |
| Axle load | 27.7 t |
| Water capacity | 45,425 l |
| Fuel capacity | 15.4 t (coal) |
Boiler
| Property | Frisco Lines classes 4100, 4135 and 4150Remove |
|---|---|
| Grate area | 6.531 m² |
| Firebox surface | 35.396 m² |
| Tube heating surface | 340.583 m² |
| Evaporative heating surface | 375.979 m² |
| Superheater surface | 98.756 m² |
| Total heating surface | 474.7 m² |
Power plant
| Property | Frisco Lines classes 4100, 4135 and 4150Remove |
|---|---|
| Driver diameter | 1,600 mm |
| Boiler pressure | 13.1 bar |
| Expansion type | simple expansion |
| Cylinders | two, 686 x 813 mm |
Power
| Property | Frisco Lines classes 4100, 4135 and 4150Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,312 kW (3,143 PS) |
| Starting effort | 266.0 kN |
| Starting effort booster | 55.158 kN |
Calculated values
| Property | Frisco Lines classes 4100, 4135 and 4150Remove |
|---|---|
| Factor of adhesion | 1 : 4.09 |
| Optimal speed | 53 km/h |
| Power-to-weight ratio | 15.9 kW/t |
| Heating Surface Equivalent | 750.5 m² |
| Cylinder volume/HSE | 1 : 800.14 |
| Adhesive weight/Total | 1 : 1.31 |
| Tractive force/Heating surface | 1 : 11.70 |
| Grate area/Heating surface | 1 : 72.69 |
| Firebox/Tube surface | 1 : 9.62 |
| Total/Superheater | 1 : 3.81 |
