Jaworzyna Śląska 2024-01-19
Steam locomotive Tr7-3.
The Tr7 steam locomotives were built in 1941 by the German company MBA, previously called Orenstein & Koppel AG. Only four locomotives were built. The locomotives were made for the Manchukuo State Railway in Asia. However, they were not delivered to the recipient. In 1942, the steam locomotives were taken over by the German Railways DRG and received the designation Br56-41 and numbers 4101–4104. The locomotives were put into operation in Poznań, at the Poznań Franowo locomotive depot. Initially, steam locomotives were a bit unusual; they had a driver's station on the left side and other equipment. After World War II, all 4 locomotives were taken over by PKP and served for 70 years.
In 1972, one Tr7-3 steam locomotive (MBA 13332/1941) was withdrawn from service at MD Skierniewice. The vehicle was intended for museum purposes. In 1990, the vehicle was transferred to the Railway Museum in Warsaw. In 1991, it was transported to the Railway Museum in Jaworzyna Śląska, where its renovation was completed in 1998. The Tr7-3 steam locomotive is positioned in front of the fan shed.
T-T data of the Tr7-3 steam locomotive:
1'D axle system. The empty weight of the locomotive itself is 68,300 kg. The service weight of the locomotive with a tender is 130,000 kg. Locomotive length 10.80 m. Length with tender 16.99 m. Height 4.50 m. Diameter of driving wheels 1.30 m. Diameter of rolling wheels 0.85 m. Boiler pressure 14 atm. The heating area of the boiler is 135 m2. The heating area of the superheater is 53.1 m2. Grate area 3.40 m2. Tendra type 22D23 (?). Design speed 65 km/h.
Written by Karol Placha Hetman