The VR Class Tr1 is a class of heavy freight locomotive built in Finland and Germany. Before 1942 VR Class Tr1s originally had the class name R1.[1] They were nicknamed “Risto”,[1] after the Finnish President Risto Ryti.[2] They were numbered 1030–1096.[1]
67 locomotives were built between 1940–57[1] by Tampella, Lokomo and Arnold Jung Lokomotivfabrik GmbH, Jungenthal of Germany.[1] The "Risto" is a product of the same era as the express train locomotive Ukko-Pekka (Hr1), and they share a similar appearance as well as several common components. Because of their high tractive effort the Tr1 locomotives were also called upon for passenger service of a heavy intermediate character. Tr1 1096 was the last steam locomotive manufactured for VR in 1957.[1] Tr1 locomotives were withdrawn during the 1970s, with the last being withdrawn in 1975.[1]
Salo, Sakari K. (2009). Höyryveturikirja, s. 14. Helsinki: Kustantaja Laaksonen. ISBN978-952-5805-12-3.
Pölhö, Eljas; Pykälä-Aho, Mia (1996). Suomen juna- ja raitiovaunukuvasto [Finnish Motive Power 1.1.1996] (in Finnish and English). Stenvalls. ISBN91-7266-133-X.
^Juhani Katajisto; Allan Scotson; Ismo Leppänen; Krister Engberg; María Cristina Talvitie (1985). Eilispäivän kulkuneuvoja. Tietoteos. ISBN978-951-9035-79-6. Retrieved 30 January 2012.