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South Side Rapid Transit No. 1 to 46
For the South Side Rapid Transit in Chicago, it was required that the trains with five four-axle passenger cars should achieve an average speed of 15 mph . This was higher than, for example, on the New York Elevated a...
General
| Property | South Side Rapid Transit No. 1 to 46Remove |
|---|---|
| Built | 1892 |
| Manufacturers | Baldwin |
| Wheel arrangement | 0-4-4T (Forney) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | South Side Rapid Transit No. 1 to 46Remove |
|---|---|
| Wheelbase | 4.98 m |
| Rigid wheelbase | 1.52 m |
| Service weight | 26.3 t |
| Adhesive weight | 18.1 t |
| Axle load | 9.1 t |
| Water capacity | 2,839 l |
Boiler
| Property | South Side Rapid Transit No. 1 to 46Remove |
|---|---|
| Grate area | 1.765 m² |
| Firebox surface | 6.503 m² |
| Tube heating surface | 45.058 m² |
| Evaporative heating surface | 51.561 m² |
| Total heating surface | 51.6 m² |
Power plant
| Property | South Side Rapid Transit No. 1 to 46Remove |
|---|---|
| Driver diameter | 1,067 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | compound |
| Cylinders | four, HP: 229 x 406 mm and LP: 381 x 406 mm |
Power
| Property | South Side Rapid Transit No. 1 to 46Remove |
|---|---|
| Power source | steam |
| Estimated power | 224 kW (305 PS) |
| Starting effort | 30.9 kN |
| Starting effort simple | 37.1 kN |
Calculated values
| Property | South Side Rapid Transit No. 1 to 46Remove |
|---|---|
| Factor of adhesion | 1 : 5.76 |
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 8.5 kW/t |
| Heating Surface Equivalent | 84.1 m² |
| Cylinder volume/HSE | 1 : 947.87 |
| Adhesive weight/Total | 1 : 1.45 |
| Tractive force/Heating surface | 1 : 12.51 |
| Grate area/Heating surface | 1 : 29.21 |
| Firebox/Tube surface | 1 : 6.93 |
