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China Railway class SY
These Mikados were based on the JF6 and were developed for industrial tasks. With a construction period up to 1999, they were the last large series-built steam locomotives in the world. There are reports that some loc...
| China Railway class SYRemove | |
|---|---|
| Variant | Standard |
| Built | 1960-1999 |
| Manufacturers | Tangshan |
| Wheel arrangement | 1D1 |
| Gauge | 1435 mm |
| Length | 21600 mm |
| Service mass | 88000 kg |
| Top speed | 80 km/h |
| Power | |
| Engine |
General
| Property | China Railway class SY Standard Remove |
|---|---|
| Built | 1960-1999 |
| Manufacturers | Tangshan |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | China Railway class SY Standard Remove |
|---|---|
| Length | 21.60 m |
| Wheelbase | 9.53 m |
| Service mass | 88 t |
| Adhesion mass | 70 t |
| Total mass | 142 t |
| Rigid wheelbase | 4.41 m |
| Axle load | 17.5 t |
| Water capacity | 25,000 l |
| Fuel capacity | 9.5 t (coal) |
Boiler
| Property | China Railway class SY Standard Remove |
|---|---|
| Grate area | 4.5 m² |
| Firebox surface | 17.4 m² |
| Tube heating surface | 154.6 m² |
| Evaporative heating surface | 172 m² |
| Superheater surface | 42.8 m² |
| Total heating surface | 214.8 m² |
Power plant
| Property | China Railway class SY Standard Remove |
|---|---|
| Driver diameter | 1,370 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 530 x 710 mm |
Power
| Property | China Railway class SY Standard Remove |
|---|---|
| Power source | steam |
| Indicated power | 1,103 kW (1,500 PS) |
| Top speed | 80 km/h |
| Starting effort | 170.8 kN |
Calculated values
| Property | China Railway class SY Standard Remove |
|---|---|
| Factor of adhesion | 1 : 4.02 |
| Optimal speed | 40 km/h |
| Power-to-weight ratio | 12.5 kW/t |
| Heating Surface Equivalent | 344.6 m² |
| Cylinder volume/HSE | 1 : 909.11 |
| Adhesive weight/Total | 1 : 1.26 |
| Tractive force/Heating surface | 1 : 16.60 |
| Grate area/Heating surface | 1 : 47.73 |
| Firebox/Tube surface | 1 : 8.89 |
| Total/Superheater | 1 : 4.02 |
