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Southern State Railway “Chiapovano” to “Javornik”
Austrian Southern Railway class 21 (old), Austrian Southern Railway class 27 and Italian State Railway class 197
Austria-Hungary | 1856 | 26 produced
No. 649 of the Southern Railway Company
No. 649 of the Southern Railway Company

After a few Engerth locomotives with two coupled axles and a three-axle tender for passenger service had already been built from 1855, more were built from 1856 for use in front of freight trains. Compared to the first 0-6-4T locos, they were slightly lighter and had slightly lower boiler pressure, but slightly larger coupled wheels. There were again 26 pieces, which were supplied by the locomotive factory in Wiener Neustadt. The state railway first took it over as class 21 and redesignated it as class 27 in 1864.

Between 1871 and 1884 they were also converted into normal tender locomotives. However, they did not receive an additional coupled axle, since the weight of the firebox could also be carried in this way. Until the beginning of the First World War, all examples were still in use, only in 1915 did one have to be retired. After the end of the war, all remaining 25 units were handed over to Italy as reparations and used there as class 197 of the FS. Their service life ended between 1925 and 1929.

General
Built1856-1857
ManufacturerWiener Neustadt
Axle config0-6-4T (Engerth) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Service weight101,853 lbs
Adhesive weight71,871 lbs
Fuel capacitywood
Power
Power sourcesteam
Estimated power282 hp (210 kW)
Optimal speed14 mph
Starting effort13,041 lbf
Power Plant
Driver diameter49.8 in
Boiler pressure102 psi
Expansion typesimple
Cylinderstwo, 18 1/8 x 22 13/16 in
Boiler
Evaporative heating area1,474.7 sq ft
Total heating area1,474.7 sq ft
Calculated Values
steam locomotive
freight
supporting tender
Engerth supporting tender
tank locomotive
last changed: 01/2022
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