Steam locomotive Ty51.
The Ty51 steam locomotive is a Polish heavy steam locomotive designed mainly for heavy freight trains. Ty51 was developed at the HCP factory in Poznań. The Ty51 steam locomotive was produced in the period 1953 - 1958 at the HCP factory in Poznań. The Ty51 steam locomotive was the heaviest and strongest Polish steam 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 locomotives. These locomotives were modeled on the design of the American Ty246 series locomotive, which was purchased in the USA in 1946 as part of the steam locomotive delivery program for European railways.
The locomotive received a timing with Trofimov sliders, instead of Nicolay sliders. The structure of the heater in the boiler has been changed. The grate area was increased. A stoker was used to feed the coal. During operation, the boiler did not show the phenomenon of "boiler exhaustion".
232 Ty51 locomotives were built. The last one was the Ty51-226 steam 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 locomotives worked on the main routes. The main route was Silesia - Ports, where the Ty51 steam locomotives worked together with the American Ty246. The delivery of the ST43 (Romania) and ST44 (CCCP) diesel locomotives and the electrification of railway routes resulted in the Ty51 locomotives being transferred to other works. Ty51 trains even carried heavy passenger trains. By the early 1980s, most Ty51 steam locomotives were jobless. They were directed to the slopes. In 1988, there were numerous cancellations of Ty51 steam locomotives.
The Ty51 steam locomotive was to be developed as the Ty55 steam locomotive. The project was carried out to work on the technical and executive documentation. A prototype of the locomotive was not built.
Until now (2022) about 12 Ty51 steam locomotives have been preserved, which are in various technical conditions. There are two steam locomotives in the Chabówka open-air museum, as exhibits: Ty51-137 tender 27D51-137 and Ty51-182 tender 27D51-182. There is a Ty51-223 steam locomotive in the Wolsztyn open-air museum.
Ty51-137 tender 27D51-137.
Built in 1956. Factory number 2429. From June 1956, he worked in Szczakowa. In October 1993, it was transferred to the Chabówka open-air museum.
Ty51-182 tender 27D51-182.
Built in 1956. Factory number 2475. From October 1956, he worked in Kraków Prokocim. In 1957, he was sent to work in Rzeszów and Żurawica. In 1991, it was renovated in the Kraków Płaszów Locomotive Depot and transferred to the Chabówka open-air museum.
T-T data of the Ty51 locomotive:
Axis system 1'E. The own weight of the locomotive is 100 300 kg. The curb weight of the tender is 31 500 kg. Service weight of the steam locomotive is 109 900 kg. The service weight tends to be 79,000 kg. Length of the locomotive 14.86 m. Total length with the 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. The heating area of the boiler is 242.00 m2. Heated area 85.60 m2. Grate area of 6.30 m2. Tender type 27D51. Running speed 80 km / h. Axle load 20,600 kg.
Written by Karol Placha Hetman