Tp11
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StEG No. 661, probably due to
round serial number (1000/1873) was christened ‘Kaiser Franz Josef’. Later
re-numbered 1173, then 4235, it was impressed into kkStB as 571.35. Taken over by ČSD and numbered 401.014, it remained in service with the Protectorate
railways until July 1940. Probably a factory photo, source: www.de.wikipedia.org.
Side drawing of the BDŽ variant, source: LBDZ. |
According
to some (albeit secondary) sources, class designation Tp11 was envisaged for
Austro-Hungarian (kkStB)
class 571; other possibilities are kkStB class 171 (see entry on Tp12) and MÁV class 441. Unless some documents
hitherto unknown are revealed, it seems doubtful if this issue can be
clarified. Origins
of the kkStB
class 571 go back to the year 1867, when k. k. privilegierte
österreichische Staatseisenbahn-Gesellschaft, commonly referred to as Staats-Eisenbahn-Gesellschaft, or StEG, took delivery of a freight locomotive with
the 0-4-0 axle arrangement, built by company’s own works (s/n 822/1867),
numbered 600 and christened ‘Wien’. Until 1871, further 111 examples
followed, most from StEG; Nos. 687 through
696 came from Borsig (all were sold to
Romanian state railways CFR in 1878) and Nos. 697 through 711 from Esslingen.
All were given individual names. In 1873 all these 112 engines were classed V
and re-numbered 1112 through 1223. Production was re-commenced at StEG in 1875, with further 23 examples built until
1878 and numbered 1224 through 1246, this time without individual names. Last
four were at once sold to Turkish Chemins de Fer
Orientaux (in 1888 they were transferred to newly-formed
Bulgarian state railways BDŽ), so further four engines were delivered
from StEG in 1880, their service numbers
1243 through 1246 being used for the second time. This gives the total of 139
examples. These locomotives featured inner frame and Gooch valve gear. There
were differences between individual batches, concerning mainly boiler details
(185, 195, 206 or 207 flues, Barren or Polonceau-type
firebox). Boiler pressure of 9 bar was later increased to 10 bar. In later
examples, two steam domes connected by a large horizontal tube, typical for
many Austrian locomotives, were introduced. In 1891 Hungarian part of the StEG
network was absorbed by state railways. 52 examples were taken over by MÁV and numbered 4201 through
4252 (later 459,001 through 052). The remaining examples were classed 42 and
numbered 4201 through 4273. In 1909 what remained of StEG was absorbed by state
railways kkStB,
which took these engines and classed them 571. Until the end of 1918 twelve
locomotives of this type were withdrawn from MÁV. After the war Hungarian railways were left with thirteen
examples, the last of which was withdrawn in 1954. Austrian state railways BBÖ had forty examples, most of which
were written off before 1938. Only three were taken over by DRG in 1938 and classed 5570.
Two of them were returned after the war and promptly withdrawn, while 55 7002
(former 571.34, StEG
976/1870) went to industry in 1944. This locomotive was returned to ÖBB in 1957 and written off in 1958,
probably the last one of this type. Czechoslovakian state railways ČSD took over 36 examples, of which 31
were classed 401.0. Three from MÁV
were, due to technical differences, classed 411.2, while two were withdrawn
before new designation system came into use. Last were withdrawn in early
1950s. Romanian railways CFR had
thirty examples, including those purchased in 1878; last of them survived
until 1935. Four BDŽ engines
initially retained their original StEG
numbers 1243 through 1246. Re-numbered 243 through 246 in 1908, they were withdrawn
from line service in 1914 and written off in 1923. Finally, three locomotives
were taken over by the railways of the Kingdom of Serbs, Croatians and
Slovenians (SHS); their ultimate fate is unknown. After WWI PKP took over just one
locomotive of this type, namely 571.09 (former No. 1132 ‘Iglava’,
StEG 879/1868). Even if class designation
Tp11 was actually envisaged for it, it was never assigned, as this elderly
engine was withdrawn before 1927. In 1945 PKP took over ex-MÁV
459,046 (StEG 1496/1878), which fell into
German hands in 1944, but was not given any DRG service number. It is
doubtful if this engine saw any use in Poland. No locomotive of this type has
been preserved. Main technical data
Note:
apart from production, data refer to the sole Polish example taken over after
WWI. References
and acknowledgments
-
www.pospichal.net/lokstatistik
(website by Josef Pospichal); -
LP, EZ vol. 2, KT vol. 3, LBDZ. |
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