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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 ...
General
| Property | Frisco Lines classes 4100, 4135 and 4150 Remove |
|---|---|
| Built | 1923 |
| Manufacturers | Baldwin |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Frisco Lines classes 4100, 4135 and 4150 Remove |
|---|---|
| Wheelbase | 11.25 m |
| Rigid wheelbase | 5.11 m |
| Total wheelbase | 22.35 m |
| Service weight | 142 t |
| Adhesive weight | 108.9 t |
| Axle load | 27.2 t |
| Total weight | 249.5 t |
| Water capacity | 45,425 l |
| Fuel capacity | 17,034 l (oil) |
Boiler
| Property | Frisco Lines classes 4100, 4135 and 4150 Remove |
|---|---|
| Grate area | 6.531 m² |
| Firebox surface | 26.57 m² |
| Tube heating surface | 340.583 m² |
| Evaporative heating surface | 367.153 m² |
| Superheater surface | 97.362 m² |
| Total heating surface | 464.5 m² |
Power plant
| Property | Frisco Lines classes 4100, 4135 and 4150 Remove |
|---|---|
| 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 4150 Remove |
|---|---|
| Power source | steam |
| Estimated power | 2,386 kW (3,244 PS) |
| Starting effort | 266.0 kN |
| Starting effort booster | 49.82 kN |
Calculated values
| Property | Frisco Lines classes 4100, 4135 and 4150 Remove |
|---|---|
| Factor of adhesion | 1 : 4.01 |
| Optimal speed | 55 km/h |
| Power-to-weight ratio | 16.8 kW/t |
| Heating Surface Equivalent | 694.7 m² |
| Cylinder volume/HSE | 1 : 864.34 |
| Adhesive weight/Total | 1 : 1.30 |
| Tractive force/Heating surface | 1 : 11.96 |
| Grate area/Heating surface | 1 : 71.12 |
| Firebox/Tube surface | 1 : 12.82 |
| Total/Superheater | 1 : 3.77 |
