Hungarian State Railways class 328
Czechoslovak State Railways class 375.1 and Yugoslav Railway class 08
The series 328 was a 4-6-0 express locomotive based on the series 327. Since the predecessor had little over ten tonnes resting on each bogie axle, the bogie was moved to the back to carry more load, allowing to install a larger boiler. Now the second driving axle was driven to avoid too short connecting rods. It had a Brotan boiler and a smoke consuming device.
Although the shorter wheelbase had an adverse effect on the running characteristics at speed, the 328 was more powerful than the 327. On the level it could haul 277 tonnes at its top speed of 100 km/h. On an incline of one percent, it could reach 60 km/h with 229 tonnes.
The first two locomotives which had been completed in 1919 were seized by the Romanians and put into service by the CFR. 56 more built by MÁVAG came to the MÁV as intended. 100 more had been delivered by Henschel when production was completed in 1922. 17 had been sold to the ČSD, which retired them in the late fifties. In Hungary, the last one was retired in 1973 and today, only 328.054 is being preserved at Budapest.
Technical data
General
- Built
- 1919-1922
- Manufacturers
- MÁVAG, Henschel
- Wheel arrangement
- 4-6-0 (Ten-wheeler)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 19.35 m
- Length loco
- 11.36 m
- Wheelbase
- 7.94 m
- Empty mass
- 63.2 t
- Service mass
- 69.4 t
- Adhesion mass
- 42.7 t
- Total mass
- 120.4 t
- Rigid wheelbase
- 4.14 m
- Axle load
- 14.2 t
- Water capacity
- 20,000 l
- Fuel capacity
- 9 t (coal)
Boiler
- Grate area
- 3.3 m²
- Firebox surface
- 16.2 m²
- Tube heating surface
- 148.8 m²
- Evaporative heating surface
- 165 m²
- Superheater surface
- 43 m²
- Total heating surface
- 208.0 m²
Power plant
- Driver diameter
- 1,826 mm
- Boiler pressure
- 12 bar
- Expansion type
- simple expansion
- Cylinders
- two, 570 x 650 mm
Power
- Power source
- steam
- Estimated power
- 1,050 kW (1,428 PS)
- Top speed
- 100 km/h
- Starting effort
- 118.0 kN
Calculated values
- Factor of adhesion
- 1 : 3.55
- Optimal speed
- 55 km/h
- Power-to-weight ratio
- 15.1 kW/t
- Heating Surface Equivalent
- 332.0 m²
- Cylinder volume/HSE
- 1 : 999.18
- Adhesive weight/Total
- 1 : 1.62
- Tractive force/Heating surface
- 1 : 11.85
- Grate area/Heating surface
- 1 : 63.03
- Firebox/Tube surface
- 1 : 9.19
- Total/Superheater
- 1 : 3.84