Hungarian State Railways Va
Hungarian State Railways class 370, Yugoslav Railway class 120, and Romanian Railway class 370
The MÁV ordered a total of 139 six-coupled tender locomotives from MÁVAG for use in front of freight and passenger trains on branch lines. They were based on a GySEV locomotive, but had larger wheels. The cylinders of the compound engine were very far forward, which did not result in smooth running. The locomotives remained in use by the MÁV until the 1950s.
Their sisters, who stayed in Yugoslavia and Romania after the First World War, probably stayed longer. Many came to industrial companies after their service with the state railways. Today only number 7111 still exists, which was in use on a coal railway until 1968 and is now in the Budapest Railway Park.
Technical data
General
- Built
- 1898-1908
- Manufacturers
- MÁVAG
- Wheel arrangement
- 0-6-0 (Six-coupled)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 12.82 m
- Wheelbase
- 2.95 m
- Total wheelbase
- 8.66 m
- Service mass
- 30.6 t
- Adhesion mass
- 30.6 t
- Total mass
- 51.7 t
- Rigid wheelbase
- 2.95 m
- Axle load
- 10.3 t
- Water capacity
- 7,000 l
- Fuel capacity
- 3.2 t (coal)
Boiler
- Grate area
- 1.41 m²
- Evaporative heating surface
- 92 m²
- Total heating surface
- 92.0 m²
Power plant
- Driver diameter
- 1,180 mm
- Boiler pressure
- 12 bar
- Expansion type
- compound
- Cylinders
- two, HP: 410 x 580 mm and LP: 620 x 580 mm
Power
- Power source
- steam
- Indicated power
- 425 kW (578 PS)
- Top speed
- 50 km/h
- Starting effort
- 58.6 kN
- Starting effort simple
- 70.4 kN
Calculated values
- Factor of adhesion
- 1 : 5.12
- Optimal speed
- 45 km/h
- Power-to-weight ratio
- 13.9 kW/t
- Adhesive weight/Total
- 1 : 1.00
- Tractive force/Heating surface
- 1 : 13.31
- Grate area/Heating surface
- 1 : 65.25
