Hungarian State Railways class 411
US Army Transportation Corps S160
Although the USATC standard locomotive of the type S160 came to a large number of states after World War II, it played a special role in Hungary. Since that country desperately needed working locomotives, they used a loan granted by the US to acquire 510 used locomotives of this type. At a price of mostly $10,000 per piece, they got 425 coal fired and 85 oil fired locomotives. 169 had been built by ALCO, 148 by Baldwin and 203 by Lima.
The MÁV put 484 into service as series 411, making them the world's biggest user of the S160. 26 of the locomotives in the poorest condition were kept aside as donors for spare parts. Since the MÁV anticipated a use over longer years, they modified these locomotives in a way to better fit their needs. This included an enlargement of the cab over the original British loading gauge and the installation of the equipment needed for steam heating of passenger trains. The nickname given to them by the Hungarians was “Trumans”.
Over the next decades, they were used for medium freight trains, but also for passenger trains when needed. Their withdrawals started in 1965 and were completed by 1983. In Hungary, three locomotives of the series 411 were preserved, with 411.118 being the only one that's operational today. In the UK, there are two complete locomotives, of which 411.144 is still operational at the Churnet Valley Railway.
Technical data
General
- Built
- 1942-1945
- Manufacturers
- ALCO, Baldwin, Lima
- Wheel arrangement
- 2-8-0 (Consolidation)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 18.47 m
- Wheelbase
- 4.72 m
- Service mass
- 73.5 t
- Adhesion mass
- 64 t
- Total mass
- 132 t
- Rigid wheelbase
- 7.09 m
- Axle load
- 16 t
- Water capacity
- 24,605 l
Boiler
- Grate area
- 3.81 m²
- Firebox surface
- 11.89 m²
- Tube heating surface
- 152.08 m²
- Evaporative heating surface
- 163.97 m²
- Total heating surface
- 164.0 m²
Power plant
- Driver diameter
- 1,448 mm
- Boiler pressure
- 15.8 bar
- Expansion type
- simple expansion
- Cylinders
- two, 483 x 660 mm
Power
- Power source
- steam
- Estimated power
- 900 kW (1,224 PS)
- Starting effort
- 142.8 kN
Calculated values
- Factor of adhesion
- 1 : 4.40
- Optimal speed
- 39 km/h
- Power-to-weight ratio
- 12.2 kW/t
- Heating Surface Equivalent
- 223.4 m²
- Cylinder volume/HSE
- 1 : 1,082.52
- Adhesive weight/Total
- 1 : 1.15
- Tractive force/Heating surface
- 1 : 18.19
- Grate area/Heating surface
- 1 : 43.04
- Firebox/Tube surface
- 1 : 12.79