Th13

KRB No. 32 ‘Mautern’ (Sigl / Wiener Neustadt 669/1869), later kkStB 3416 and then 34.16, withdrawn in 1928. Location and date unknown. Source: www.commons.wikimedia.org.

Since mid-1860s Austro-Hungarian private railways ordered several types of freight locomotives with the 0-3-0 axle arrangement. They were built against individual orders and, despite similar appearance, differed in many details. Most of these operators were later absorbed by state railways kaiserlich-königliche österreichische Staatsbahnen (kkStB) and their locomotives were classed in accordance with their system then in use. This explains why kkStB had many classes of 0-3-0 freighters, of which some numbered just a few examples. After the war a number of these locomotives were taken over by PKP and as many as fourteen class designations were intended for them. In many cases this was only formal, as most of these engines, due to their obsolescence, were withdrawn before new system came to use in 1926. Assignment of Polish designations to kkStB classes is still subject to dispute and data from various sources are sometimes contradictory. This refers also to class Th13 – probably Austro-Hungarian class 34.

On January 1, 1884, k.k. privilegierte Kronprinz Rudolf-Bahn (KRB), founded in 1868, was absorbed by kkStB together with their motive power and rolling stock. Their most numerous locomotive type was a 0-3-0 freighter with outer frame and Stephenson valve gear, built between 1868 and 1873 by Sigl (Wien and Wiener Neustadt works), Maffei and Mödlinger Lokomotivfabrik. In all, 43 examples were delivered, numbered 2 through 74 and 98 through 108 (even numbers only) and given individual names. With kkStB they were numbered 3401 through 3443, in 1905 re-numbered 34.01 through 43. In the 1890s they were modernized, with boiler pressure increased from 9 to 10 bar; two types of boilers were fitted, differing in grate dimensions and number of flues. In 1901, No. 3429 (ex KRB No. 58, Maffei 760/1871) was rebuilt into a tank locomotive and re-numbered 6501. Five were withdrawn between 1910 and 1916. The rest were divided between BBÖ (eighteen, withdrawn between 1928 and 1929), PKP (nine), Italian FS (three, classed 194 and withdrawn between 1924 and 1925), ČSD (one, withdrawn in March 1924) and the railways of the Kingdom of Serbs, Croatians and Slovenians (six). The latter operator kept them in use until 1932. Polish 34s were all written off before 1924, so – if class designation Th13 was in fact intended for them – they were never actually re-numbered. No locomotive of this type has been preserved.  

Main technical data

No.	Parameter	Unit	Value
1.	Years of manufacture	-	1868 – 1873
2.	Total built / used in Poland	-	43 / 9
3.	Tender class	-
4.	Axle arrangement	-	0-3-0
5.	Design maximum speed	km/h	45
6.	Cylinder number x bore	mm	2 x 435
7.	Piston stroke	mm	632
8.	Engine rating	kW/hp
9.	Tractive effort	kG
10.	Boiler pressure	MPa	1.02
11.	Grate dimensions	m X m	1.78 / 1.63 m^2 1)
12.	Firebox heating surface	m^2	8.0 / 7.9^1)
13.	Distance between tube plates	mm	4 130
14.	Number of flue tubes	-	156 / 167^1)
15.	Heating surface of flue tubes	m^2	103.0 / 110.5^1)
16.	Number of smoke tubes	-	-
17.	Heating surface of smoke tubes	m^2	-
18.	Evaporating surface, total	m^2	111.0 / 118.4^1)
19.	Superheater heating surface	m^2	-
20.	Diameter of drivers	mm	1 180
21.	Diameter of idlers front/rear	mm	- / -
22.	Total weight, empty	kg	31 400
23.	Total weight, working order	kg	35 000
24.	Weight on drivers, working order	kg	35 000
25.	Weight with tender, empty	kg
26.	Weight with tender, working order	kg
27.	Maximum axle load	T
28.	Axle base (with tender)	mm	10 350
29.	Overall length (with tender)	mm
30.	Brake type	-

1) Two boiler versions.

References and acknowledgments

- www.pospichal.net/lokstatistik (website by Josef Pospichal);

- TK vol. 2, LP.