Manchurian Railway Mikasa class
China Railway JF3
Between 1927 and 1930, three smaller railway companies in Manchuria had a total of 19 Mikado freight locomotives built by Škoda. These were the Qike Railway, the Huhai Railway, and the Sitao Railway. With a simple two-cylinder engine and a driving wheel diameter of around 1,400 mm, they reached a maximum permissible speed of 60 km/h.
After the founding of the Manchukuo state in 1934, the locomotives were first called „Mikani” and then renamed „Mikasa” in 1938, both of which came from the American type designation “Mikado”. In 1951 they were given the designation MK3 by the China Railway and became the JF3 from 1959. Their use probably ended in 1990 and today the number 2558 is in the museum in Shenyang.
Technical data
General
- Built
- 1927-1930
- Manufacturers
- Škoda
- Wheel arrangement
- 2-8-2 (Mikado)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 20.32 m
- Wheelbase
- 9.30 m
- Total wheelbase
- 17.65 m
- Service mass
- 82.8 t
- Adhesion mass
- 62.3 t
- Total mass
- 135.4 t
- Rigid wheelbase
- 4.50 m
- Water capacity
- 22,500 l
- Fuel capacity
- 9 t (coal)
Boiler
- Firebox surface
- 17 m²
- Tube heating surface
- 174.3 m²
- Evaporative heating surface
- 191.3 m²
- Superheater surface
- 43.95 m²
- Total heating surface
- 235.3 m²
Power plant
- Driver diameter
- 1,410 mm
- Boiler pressure
- 12.8 bar
- Expansion type
- simple expansion
- Cylinders
- two, 520 x 710 mm
Power
- Power source
- steam
- Estimated power
- 1,050 kW (1,428 PS)
- Top speed
- 60 km/h
- Starting effort
- 148.1 kN
Calculated values
- Factor of adhesion
- 1 : 4.12
- Optimal speed
- 43 km/h
- Power-to-weight ratio
- 12.7 kW/t
- Heating Surface Equivalent
- 364.2 m²
- Cylinder volume/HSE
- 1 : 828.03
- Adhesive weight/Total
- 1 : 1.33
- Tractive force/Heating surface
- 1 : 13.15
- Firebox/Tube surface
- 1 : 10.25
- Total/Superheater
- 1 : 4.35
