VR Class Hv1

VR Class Hv1
VR Class Hv1 4-6-0, built by Tampella in 1915
Type and origin Power type Steam Builder Tampella, Lokomo Build date 1915–21 Total produced 42
Specifications Configuration: ​  • Whyte 4-6-0 Gauge 1,524 mm (5 ft) Loco weight 88.5 tonnes (87.1 long tons; 97.6 short tons) Fuel type Coal or firewood Fuel capacity 3.5 t (3.4 long tons; 3.9 short tons),> 11 m3 (390 cu ft) Water cap. 14.3 m3 (500 cu ft) Firebox: ​  • Grate area 1.99 m2 (21.4 sq ft) Heating surface 108.6 m2 (1,169 sq ft)
Performance figures Maximum speed 95 km/h (59 mph)
Career Numbers 545–578, 648–655 Nicknames "Heikki", Locomotive number 555 was called "Princess" First run 1915 Withdrawn 1967 Disposition 3 preserved. No. 554 is plinthed in Riihimäki, No. 575 is plinthed next to the Lokomo factory in Tampere. No. 555 is at the Finnish Railway Museum.

The Finnish VR Class Hv1 (original classification 'H8') was a 4-6-0 express passenger train locomotive. 42 were built between 1915 and 1921. They were numbered 545–578 and 648–655.^[1]

Because of the increasing weight of trains, around 1910 there was a need for a more powerful passenger train locomotive, and the Finnish State Railways ordered a new design from Tampella and Lokomo.^[2] The initial maximum speed was 80 km/h but this was increased to 95 km/h in 1934.^[2] Hv1 locomotives were in use on passenger trains throughout Finland for 50 years. The last of these locomotives was withdrawn in 1967.^[2]

The very similar locomotive types Hv2 and Hv3 were built later. The Hv2s were almost identical to the Hv1s, while the Hv3s had longer, 4-axle, 2-truck tenders.