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Hungarian State Railways and Košice–Bohumín Railway series XII
later series 377, Czechoslovak State Railways class 310.4 and Yugoslav Railway class 152
Austria-Hungary | 1885 | 562 produced
377.210 on display at Salgótarján station
377.210 on display at Salgótarján station
Globetrotter19

The XII was a small tank locomotive for service on secondary lines, which was produced in large numbers by almost every factory in Austria-Hungary. However, it was only used outside the Austrian part of the Reich, since the MÁV had received 549 locomotives and the KsOd 13. It only got its striking appearance later through the installation of a long smokebox that protruded over the buffer beam. After the First World War, the majority was located in Hungary, Czechoslovakia and Yugoslavia. The state railways usually retired the locomotives in the fifties, but in industry they could last into the seventies.

General
Built1885-1908
ManufacturerMÁVAG, StEG, Wiener Neustadt, Krauss Linz, Weitzer
Axle config0-6-0T (Six-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length26 ft 7 1/8 in
Wheelbase9 ft 2 1/4 in
Fixed wheelbase9 ft 2 1/4 in
Empty weight43,982 lbs
Service weight60,407 lbs
Adhesive weight60,407 lbs
Axle load20,283 lbs
Water capacity1,162 us gal
Fuel capacity3,307 lbs (coal)
Power
Power sourcesteam
Indicated power201 hp (150 kW)
Optimal speed13 mph
Top speed28 mph
Starting effort10,121 lbf
Power Plant
Driver diameter43.7 in
Boiler pressure145 psi
Expansion typesimple
Cylinderstwo, 13 3/4 x 18 7/8 in
Boiler
Grate area12.9 sq ft
Firebox area59.2 sq ft
Tube heating area497.3 sq ft
Evaporative heating area556.5 sq ft
Total heating area556.5 sq ft
Calculated Values
steam locomotive
freight
passenger
tank locomotive
secondary line
last changed: 07/2023
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