Locomotive Model Steam Engine Heavy Freight Model TY23About The Steam Engine TY23 Up until 1939 the TY23 was the main steam engine used forhauling heavy goods mostly coal. Though a newer engine was ordered to replace it ,the TY23 operated until 1979. Initial production of the TY23 was done in Germany andBelgium. In later years, production was moved to Poland with factories such as Fablok,Parowoz and Cegielski. The TY23 engine was very popular among train crews. It was asturdy engine and when accidents