VR series H1

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VR series H1
Numbering: 232-241
Number: 10
Manufacturer: Baldwin Locomotive Works , Philadelphia , USA
Year of construction (s): 1898
Retirement: until 1959
Axis formula : 2'C n2
Gauge : 1524 mm
Length over buffers: 14,997 mm
Empty mass: 32.3 t
Service mass: 43.2 t
Top speed: 80/85 km / h
Continuous tensile force: 48.9 kN
(4980 kp)
Driving wheel diameter: 1575 mm
Boiler overpressure: 12.2 bar
Tubular heating surface: 112.8 m²
Water supply: 9.5 m³
Fuel supply: Coal: 7.5 m³,
wood: 5.8 m³

The VR series H1 was a series of wet steam locomotives for passenger transport that was procured by the Finnish state railway company Valtionrautatiet in 1898. The locomotives were built at the Baldwin Locomotive Works in Philadelphia , USA.

history

Rail traffic in Finland increased significantly in the late 1890s. This increased the mass of trains, especially in passenger traffic. The class A locomotives were too weak for the train performance. Therefore, in 1897, ordered larger and more powerful locomotives from Baldwin Locomotive Works in Philadelphia because the European locomotive factories were unable to deliver on time.

The ten locomotives ordered were completed in the following year and were given the series designation H1 with the numbers 232–241. In the years that followed, VR 22 ordered similar locomotives in two lots from Richmond Locomotive Works , designated as H2 .

Technical specifications

The locomotives of both manufacturers were similar. The service weight of the H1 series was slightly higher, they had an axle mass of 10.5 tons. The tenders had three axles, the first axle was mounted in the frame, the next two formed a bogie . The locomotives had a bar frame . The two cylinders were equipped with flat slide valves.

Over the years they have been the installation of a superheater in steam rebuilt. This modification also required the replacement of the flat valve with piston valve , the reinforcement of the tender and other changes that were necessary to increase the speed.

VR series Hk1

When the VR numbering plan was changed in 1942, the H1 and H2 were combined in one series, the Hk1 , which consisted of American locomotives with the 2'C axle arrangement.

commitment

The locomotives were then in service for almost 40 years in passenger train service and were stationed in Helsinki , St. Petersburg and Vyborg , then in Riihimäki and Karelia and later in other parts of the country. They were popular and fast, but their fuel and lubricant consumption was higher than that of the H3 and H4 , built a little later in Tampere and designed as compound machines. They were used almost exclusively in long-distance traffic up to the commissioning of the H8 series , and later in front of lighter trains until the mid-1950s when railcars took over their service.

They were used in subordinate services until they were withdrawn and ultimately served as reserve locomotives.

Whereabouts

In 1918, six locomotives remained in Russia , which were bought back seven years later. After the winter war , eight locomotives had to be handed over to the Soviet Union . One remained in the military sector.

Three locomotives were decommissioned in 1936 and 1939, the rest in 1954 to 1959.

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