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Chōsen Government Railway Matei class
With the development of mining in North Korea, freight locomotives were needed which could be used on the winding mountain lines. The 2-8-2 type was already used for heavy freight trains, but there were concerns about...
General
| Property | Chōsen Government Railway Matei classRemove |
|---|---|
| Built | 1939-1945 |
| Manufacturers | Gyeongseong, Kisha Seizō |
| Wheel arrangement | 4-8-2 (Mountain) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Chōsen Government Railway Matei classRemove |
|---|---|
| Length | 23.84 m |
| Service weight | 116 t |
| Adhesive weight | 83 t |
| Axle load | 20.8 t |
| Total weight | 201.8 t |
| Water capacity | 35,000 l |
| Fuel capacity | 14 t (coal) |
Boiler
| Property | Chōsen Government Railway Matei classRemove |
|---|---|
| Grate area | 6.2 m² |
| Firebox surface | 27.4 m² |
| Tube heating surface | 252.6 m² |
| Evaporative heating surface | 280 m² |
| Superheater surface | 113.7 m² |
| Total heating surface | 393.7 m² |
Power plant
| Property | Chōsen Government Railway Matei classRemove |
|---|---|
| Driver diameter | 1,450 mm |
| Boiler pressure | 14.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 600 x 710 mm |
Power
| Property | Chōsen Government Railway Matei classRemove |
|---|---|
| Power source | steam |
| Estimated power | 2,100 kW (2,855 PS) |
| Top speed | 80 km/h |
| Starting effort | 220.3 kN |
Calculated values
| Property | Chōsen Government Railway Matei classRemove |
|---|---|
| Factor of adhesion | 1 : 3.70 |
| Optimal speed | 58 km/h |
| Power-to-weight ratio | 18.1 kW/t |
| Heating Surface Equivalent | 644.4 m² |
| Cylinder volume/HSE | 1 : 623.05 |
| Adhesive weight/Total | 1 : 1.40 |
| Tractive force/Heating surface | 1 : 11.68 |
| Grate area/Heating surface | 1 : 63.50 |
| Firebox/Tube surface | 1 : 9.22 |
| Total/Superheater | 1 : 2.46 |
