Steam locomotive Ty51-223, tender 27D51-204.
The Ty51 steam locomotive is a Polish heavy steam locomotive designed mainly for heavy freight trains. The Ty51 was developed at the HCP factory in Poznań. The Ty51 locomotive was produced in the period 1953 - 1958 at the HCP factory in Poznań. The Ty51 locomotive was the heaviest and most powerful Polish locomotive. Axis system 1'E (1-5-0 or oOOOOO), Polish designation small letter "y".
The Ty51 steam locomotive was created as a result of the growing demand for heavy freight steam locomotives. These locomotives were modeled on the design of the American Ty246 locomotive, which was purchased in 1946 in the USA as part of the steam locomotive supply program for European railways.
The locomotive received a timing system with Trofimov sliders instead of Nicolay's sliders. The design of the preheater and superheater in the boiler has been changed. The surface of the grate has been increased. A stoker was used for the carbon feed. In operation, the boiler did not show the phenomenon of "boiler exhaustion".
232 Ty51 locomotives were built. The last one was the Ty51-226 locomotive. 208 Ty51 locomotives were handed over to PKP, and the rest went to the company's railways. Production ended in 1958. Due to the high axle load, all the locomotives worked on the main routes. The main route was Silesia - Ports, where Ty51 steam locomotives worked together with American Ty246. The delivery of ST43 (Romania) and ST44 (CCCP) diesel locomotives and the electrification of railway routes meant that Ty51 locomotives were directed to other works. Ty51 trains even drove heavy passenger trains. At the beginning of the 1980s, most Ty51 locomotives remained out of work. They were directed to the slopes. In 1988, there were numerous cancellations of Ty51 steam locomotives.
The development of the Ty51 locomotive was to be the Ty55 locomotive. The project was brought to work on the technical and executive documentation. The locomotive prototype was not built.
To date (2023), about 12 Ty51 steam locomotives have been preserved, which are in various technical conditions. There are two steam locomotives as exhibits in the Chabówka open-air museum: Ty51-137 tender 27D51-137 and Ty51-182 tender 27D51-182. There is a Ty51-223 steam locomotive in the Wolsztyn open-air museum.
Ty51-223 tender 27D51-204.
Built in 1957. Serial number 2532. Boiler number 4452. From June 30, 1957, he worked in Piotrków Trybunalski. Then he worked in: Warsaw, Siedlce, Dęblin, Rzepin, Skarżysko Kamienna, Rzepin, Wolsztyn. On August 1, 2000, the locomotive was struck from the state. The locomotive is an exhibit in Wolsztyn. Tender 27D51-204.
T-T data of the Ty51 steam locomotive:
Axis system 1'E. The curb weight of the locomotive is 100,300 kg. Curb weight of the tender 31,500 kg. The service weight of the locomotive is 109,900 kg. The service weight of the tender is 79,000 kg. Length of the locomotive 14.86 m. Total length with tender 23.02 m. Height 4.65 m. Diameter of driving wheels 1.45 m. Diameter of rolling wheels 0.85 m. Boiler with a pressure of 16 at. Heating area of the boiler 242.00 m2. Heating area 85.60 m2. Grate area 6.30 m2. Type 27D51 tender. Running speed 80 km/h. Axle load 20,600 kg.
Written by Karol Placha Hetman