VR Class Hr1

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VR Class Hr1
Hr1 1021 Rm.jpg
Hr1 1021 with Witte-type smoke deflectors
Type and origin
Power typeSteam
Builder Lokomo Oy and Tampella Oy
Build date1937–1957
Total produced22
   AAR 4-6-2
Gauge 1,524 mm (5 ft)
Driver dia.1,900 mm (6 ft 3 in)
Length22.2 m (72 ft 10 in)
Loco weight155 tonnes (153 long tons; 171 short tons) with tender
Boiler pressure15 bar (1,500 kPa; 220 psi)
Cylinders Two, outside
Performance figures
Maximum speed110 km/h (68 mph)
Tractive effort 114 kN (25,630 lbf)
Operators VR
First run1937
Withdrawn1974; not in service 1972; returned to service due to oil crisis
Dispositionthree restored, six scrapped, others preserved

Hr1 class (original classification P1) was the largest passenger express steam locomotive built in Finland. Twenty-two were built between the years 1937–1957. They were numbered 1000–1021.


In the thirties there was a need for faster and heavier express trains in Finland, and the Hv1–Hv3 classes were not powerful enough to fill the need. Lokomo Oy in Tampere built first two prototypes, and after successful trials 20 more were built. Most of the locomotives were fitted with Wagner-type smoke deflectors, but the last two, which were equipped with roller bearings, had Witte-type deflectors.

The nickname of the locomotive was "Ukko-Pekka" meaning approximately "(respected) Grandpa Pekka", after the President of Finland Pehr Evind Svinhufvud.

The Hr1 was built for coal firing, but during the coal shortage after the war in 1945, birch wood was used as fuel. Larger chimneys needed for extinguishing wood sparks were temporarily fitted.

The Hr1s were the most important express steam locomotive and could justifiably be called the "flagships" of VR until 1963, when diesel locomotives started to replace steam. Their use ended officially in 1971, but two roller bearing Hr1s were returned for a short use in spring 1974. One engine, 1005, was a participant on the worst peacetime railroad accident in Finland, kuurila accident, in 1957. The engine is preserved at Haapamäki.

Hr1's sister locomotive was the Tr1 class, otherwise similar, but with 2-8-2 wheel arrangement and smaller diameter drivers for cargo train use.


The following are preserved:

See also

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