PKP Class Ok22
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PKP class Ok22 is a class of ordinary passenger (O)
4-6-0 A 4-6-0 steam locomotive, under the Whyte notation for the classification of steam locomotives by wheel arrangement, has four leading wheels on two axles in a leading bogie and six powered and coupled driving wheels on three axles with the abs ...
(k) steam locomotive designed in 1922 for
Polskie Koleje Państwowe The Polish State Railways ( , abbreviation, abbr.: PKP S.A. (corporation), S.A.) is a Polish State ownership, state-owned holding company (legally a :simple:sole-shareholder company of the State Treasury, sole-shareholder company of the State Tr ...
(Polish State Railways, PKP). It was the first locomotive designed in Poland after
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, so the design work was done jointly with
Hanomag Hanomag (Hannoversche Maschinenbau AG, ) was a German producer of steam locomotives, tractors, trucks and military vehicles in Hanover. Hanomag first achieved international fame by delivering numerous steam locomotives to Finland, Romania and ...
, based on the Prussian P 8 ( PKP class Ok1)


History


Introduction

The first five engines were built in Germany by
Hanomag Hanomag (Hannoversche Maschinenbau AG, ) was a German producer of steam locomotives, tractors, trucks and military vehicles in Hanover. Hanomag first achieved international fame by delivering numerous steam locomotives to Finland, Romania and ...
in 1923. Polish production started in 1928 and lasted until 1934 after which 185 locomotives had been manufactured by Fablok in Chrzanów. The first Polish-built locomotive (Ok22-6) was ready on December 31, 1928. Polish versions of the locomotive bore some improvements and changes compared with German ones, and were similar to PKP class Ty23. Ok22 locomotives were the first on the PKP to be equipped with electric lights.


Wartime

After the German invasion of Poland in World War II, most Ok22 locomotives were taken into the
Deutsche Reichsbahn The ''Deutsche Reichsbahn'' (), also known as the German National Railway, the German State Railway, German Reich Railway, and the German Imperial Railway, was the Weimar Republic, German national Rail transport, railway system created after th ...
fleet as 38 4501 to 38 4630.


Present day

Only two examples have survived. Ok22-23 in Jaworzyna Śląska and Ok22-31 in Wolsztyn. Ok22-31 was an operational engine. It ran until 1997, and after retirement became a stationary exhibit. In 2004 the machine was restored to working order again, and it ran until 2009. It is currently static.


See also

* PKP classification system


References

* * * Ok22 4-6-0 locomotives 2′C h2 locomotives Railway locomotives introduced in 1923 Fablok locomotives Hanomag locomotives Standard-gauge locomotives of Poland {{poland-rail-transport-stub Passenger locomotives