The reference for locomotives and railcars


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Imperial-Royal State Railways and Austrian Southern Railway class 108
Czechoslovak State Railways class 275.0
Austria-Hungary | 1901 | 36 produced

In 1901, Karl Gölsdorf had the class 108 built, which was the first Atlantic in Austria-Hungary with a four-cylinder compound engine. The requirement was to accommodate a powerful express locomotive with the largest possible tender on the existing 16 meter turntables. This meant that the total wheelbase could be a maximum of 16,440 mm.

The length of the locomotive was kept short by extending the firebox to the rear edge of the frame. The crew stood on the platform between the locomotive and the tender, while the firebox had to be placed between the wheels due to the short wheelbase between the second driving axle and the trailing axle. The new, four-axle tender could hold 21 cubic meters of water and 9 cubic meters of coal, which allowed a long range.

The locomotives briefly produced up to 1,600 hp and could reach speeds of up to 143 km/h. However, for operational reasons, the maximum permitted speed was only 100 km/h. They were able to pull 220 tonnes at 75 km/h on an incline of one percent.

In addition to the 25 machines of the kkStB, the Südbahn also purchased eleven. After the First World War, the kkStB machines went to the ČSD, which remained in use there as the class 275.0 until 1948. However, those from the Südbahn came to the kkStB in 1923 and remained in use until 1934.

ManufacturerBMMF, Wiener Neustadt, StEG
Axle config4-4-2 (Atlantic) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length63 ft 10 15/16 in
Length loco37 ft 6 7/8 in
Wheelbase34 ft 10 3/16 in
Fixed wheelbase9 ft 2 1/4 in
Total wheelbase53 ft 11 1/4 in
Service weight150,576 lbs
Adhesive weight63,934 lbs
Total weight260,807 lbs
Axle load31,967 lbs
Water capacity5,548 us gal
Fuel capacity14,991 lbs (coal)
Power sourcesteam
Estimated power1,381 hp (1,030 kW)
Optimal speed53 mph
Top speed62 mph
Starting effort16,653 lbf
with start valve19,984 lbf
Power Plant
Driver diameter84.3 in
Boiler pressure218 psi
Expansion typecompound
Cylindersfour, HP: 13 3/4 x 26 3/4 in
and LP: 23 5/8 x 26 3/4 in
Grate area38 sq ft
Firebox area172.2 sq ft
Tube heating area2,314.2 sq ft
Evaporative heating area2,486.5 sq ft
Total heating area2,486.5 sq ft
Calculated Values
steam locomotive
Von Borries compound
Karl Gölsdorf
last changed: 01/2024

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