KkStB 206.40 (Wiener Neustadt 4620/1905). This locomotive later became Pd14-7; withdrawn in 1938, it was captured by Soviet troops in September 1939 and it subsequent fate is unknown. Factory photo (source: www.pl.wikipedia.org).
Class 206 was later developed into class 306, which featured steam superheating. 306.01 (StEG 3501/1908) remained with BBÖ and was withdrawn in 1949. Photo from my collection.
Class 206 of Austro-Hungarian state railways (KkStB) was developed from earlier class 106. Main changes were that of the boiler, which was shortened by 500 mm, which improved weight balance, and located higher above the frame. Number of flues was increased by 14, so that overall decrease of heating surface was marginal. Externally new boiler differed in having a single steam dome instead of two connected with horizontal tube, typical for many Austrian locomotives. Frame, wheelsets, running gear and steam engine were almost unchanged. Tractive effort was slightly increased, but maximum speed remained at 90 km/h. 206.03 (Wiener Neustadt 4511/1903) was initially fitted with Gölsdorf-type superheater, located under the boiler and heated directly from the firebox, which increased weight in working order by some four tones. This proved unsuccessful and was later deleted. Class 206 was further developed into class 306 with steam superheating, but only three examples of the latter were eventually built.
Locomotives of this type were built for KkStB between 1903 and 1907 by Wiener Neustadt (31), BMMF (22), StEG (fourteen) and WLF (three). Further nineteen were delivered between 1904 and 1908 to Südbahn by Wiener Neustadt (thirteen) and Budapest (six). After WWI KkStB engines were divided between newly-formed BBÖ (44), ÈSD (fifteen) and PKP (eleven). Of Austrian locomotives, 27 were withdrawn in the 1930s and seventeen taken over by DRG after Anschluss. The latter were numbered 13 151 through 167 and some were returned after the war. Czechoslovakian locomotives were classed 265.0; last survived in service until 1949. Südbahn engines went to Hungary (four, MÁV class 225) and Italy (fifteen, FS class 555, all withdrawn between 1933 and 1934).
Polish 206s were classed Pd14 in 1926. They were assigned to the Lwów and Stanis³awów regional PKP managements and operated in south-eastern Poland. Two were withdrawn before 1939. Two fell into German hands and seven (including Pd14-7, withdrawn in December 1938) were captured by the Soviets, eventually all but one becoming German booty after 1941. The fate of the Pd14-11 is not known. Five examples were returned after the war, plus one ex-MÁV 225,302, but of these only two were given new service numbers Pd14-1 and Pd14-2. These obsolete and run-down locomotives saw, however, no service and all were written off until 1950. Not a single example has been preserved.
Main technical data
Note: technical data for production examples from 206.04 onwards. Prototypes differed slightly in overall weight and axle load distribution.
References and acknowledgments
- www.lokomotive.de/lokomotivgeschichte/datenbank (Ingo Hütter’s database);
- TK vol. 1, EZ vol. 1, ISRSL.