page_title: 4-6-4
section_title: Finland
hierarchical_section_title: 4-6-4 / Usage / Finland
caption_attribution_description: Deutsch: Dampflokomotive Pr2 1800 , Henschel Fabriknummer 26132 , der VR im Eisenbahnmuseum in Haapamäki 02.08.2011 Suomi: Pr2-höyryveturi nro 1800 Haapamäen höyryveturipuistossa Keuruulla.
context_page_description: Under the Whyte notation for the classification of locomotives, 4-6-4 represents the wheel arrangement of four leading wheels, six powered and coupled driving wheels and four trailing wheels. In France where the type was first used, it is known as the Baltic while it became known as the Hudson in most of North America.
context_section_description: The Finnish State Railways Class Pr2, nicknamed Henschel, was a 5 ft (1,524 mm) gauge passenger tank locomotive class, ordered from Henschel & Son by the Estonian State Railways in the spring of 1939 and completed in 1941. The outbreak of the Second World War prevented their delivery to Estonia, but a few of these engines did operate in Latvia in 1942. They became superfluous when the Germans began converting the Baltic tracks to 4 ft 8 ¹⁄₂ in (1,435 mm) standard gauge, and the four locomotives were sold to Finland. They were classified Pr2 and numbered 1800 to 1803 upon their arrival in Finland in December 1942.
  The Class Pr2 tanks were quite advanced locomotives and were based on the Henschel-built DRG Class 62 tank engine design of 1928 for the Deutsche Reichsbahn. After their initial teething problems were solved, they proved to be fast runners and an ideal addition to the motive power stable. They were originally built as oil-burners and reverted to this type of fuel between 1947 and 1954, when oil prices were low. With its 1,830 millimetres (72 inches) coupled wheels, it was very fast and one of them achieved 144 kilometres per hour (89 miles per hour) during a test run. No. 1803, the last Class Pr2 in service, was withdrawn in May 1960. Only no. 1800 has been preserved.
caption: Finnish VR Class Pr2 no. 1800 at Haapamäki in Keuruu, Finland
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