Class AF 1 / 24 (Locobase 4674)

Data from [], accessed 11 August 2006. Works numbers were 173-177 in 1868, 203-210 in 1869, 1037-1048 in 1870, 1466-1468 in 1872.

These locomotives gained new boilers in 1886-1895. They offered 118.4 sq m (1,274 sq m) of heating surface of which 7.9 sq m (85 sq ft) was direct. The grate shrank slightly to 1.63 sq m (18.2 sq ft); see Locobase 4675 for the results as displayed by the similar Class 26. Only three remained in service after World War One; these (6, 12, and 17) were designated class 233 by the CSD, which retired them in 1928.

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Class AF 2 26 (Locobase 4675)

Data from [], accessed 11 August 1=2006. This follow-on class to the KFJB's Class 24 (Locobase 4674) was, like the latter, produced by Sigl and Wiener Neustadt. It's not clear why the kkStB later assigned a different class ID, but notes that these were identical to start with and rebuilt to identical boiler dimensions. Therefore, this entry has the later boiler dimensions, which can be read for both classes.

Five class 26s went to the Czech CSD after World War One: 26.05, 10, 16, 19,and 20

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Class Gv / 189 (Locobase 8080)

Data from [], last accessed 13 January 207.

Among the many little railways overseen by the Austrian state railway system was the horse-drawn Pferdeeisenbahn BudweisvLinzvGmunden, which had the unusual gauge of 1106 mm (43.54"). In 1896, Krauss Linz supplied 4 Gv tanks as the first steam power for this line. To induce the engines to accommodate themselves to the twisting alignment, designer Karl Gÿlsdorf fitted them with a Krauss Helmholtz truck. This meant that they had no fixed wheelbase. Note that the evaporative heating surface areas are measured from the water side and thus are comparable to North American practice.

Therefore, when in 1903, the PBLG was converted to standard gauge and these locomotives rebuilt accordingly as shown in the specs, they proved of very limited utility. All four were assigned to Wels. Three were scrapped in 1929-1932. Remarkably the 4th survived to receive a German designation -- BR88 7101 -- outlasted the Third Reich and continued in service until the Soviet administrators, which ran Austria until 1954, withdrew the engine in 1953.

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Class I, II/123 (Locobase 4672)

Data from [], accessed 11 August 2006; and Czech-language "Lokomotivy T.K.P.E. cfsla 1 aP 4, 16 a 17" at [], last accessed 23 October 2022. Wiener Neustadt works numbers were 434-437 in 1865 and Modlinger Lokofabrik added 2 in 1874.

The earliest six locomotives in this class originally ran on the Turnau-Kralup-Prager Eisenbahn (TKPE). As translated by Google, the Lokomotivy TKPE website explained the enduring suitability of these engines: "Given the speed of the trains at the time, which was 50 km/h [31 mph], these machines were sufficient even for the most difficult sections of the track between Kropácová Vrutfca - Chotetov and Vftkov in Prague."

Sigl supported the establishment of the Bohmische Nordbahn with six of the same design i n1867-1868. Combining the two under the BNB herald led to a renumbering of the latter BNBs from 1-6 to 7-12.

Five of the TKPE's were scrapped in 1907. In 1908, the k.k. österreichischen Staatsbahnen (kkStB) created Klasse 123 to hold #6 of original TKPEs (123.06) and all but II.19 of the BNBs. Only two remained at the end of World War I. Both went to the Czech State Railways, but were soon discarded in 1921 and 1924.