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The reference for locomotives and railcars

Hungarian State Railways class 328

Czechoslovak State Railways class 375.1 and Yugoslav Railway class 08

Hungary 1919 141 produced
Photo from 1938 with staff FORTEPAN / Erky-Nagy Tibor CC BY-SA 3.0

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
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