MÁV Ia
| MÁV Ia / MÁV series 220 / ČSD series 264.5 KsOd Ia / ČSD series 254.4 |
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| Numbering: | MÁV 183–188, 708–717, 723–732, 739–742, 1251–1253 MÁV Ia 11–211 MÁV 220.001–197, 201–204 ČSD 264.501-506 KsOd Ia 41–45 ČSD 254.401-405 |
| Number: | MÁV: 201 KsOd: 5 ČSD: 6 (from MÁV), 5 (from KsOd) |
| Manufacturer: |
MÁVAG , Budapest Sigl , Wiener Neustadt Floridsdorf |
| Year of construction (s): | 1881-1900 |
| Retirement: | MÁV: until 1950 ČSD: until 1937 |
| Axis formula : | 2'B n2 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 15,335 mm / 15,756 mm |
| Length: | 8,885 mm |
| Height: | 4,570 mm |
| Fixed wheelbase: | 5,050 mm |
| Total wheelbase: | 5,900 mm |
| Service mass: | 81 t |
| Wheel set mass : | 14 t |
| Top speed: | 90 km / h |
| Indexed performance : | 440 kW |
| Driving wheel diameter: | 1,825 mm |
| Impeller diameter: | 1,040 mm |
| Number of cylinders: | 2 |
| Cylinder diameter: | 450 mm |
| Piston stroke: | 650 mm |
| Boiler overpressure: | 10.5 bar / 12.0 bar |
| Grate area: | 2.1 m² |
| Evaporation heating surface: | 135 m² (in contact with water) |
| Water supply: | 12.5 m³ |
| Fuel supply: | 8.8 t |
| Brake: | Westinghouse |
| Control: | Stephenson |
The MÁV Ia was an express train - steam locomotive series of the Hungarian State Railways MÁV for express train service on main lines, which was also procured by the Kaschau-Oderberger Bahn as series Ia .
Their area of application was similar to that of the Austrian kkStB 106 and kkStB 104 . It was designed by MÁVAG in Budapest and shows the typical structural designs of the time: wet steam engine, low boiler position with the resulting external frame, Hall cranks in the drives with Stephenson external control as well as smoke chamber protruding up to the buffer beam to avoid excessive flying sparks.
The first delivery of 16 pieces (1881–1885) from MÁVAG and Sigl in Wiener Neustadt had a boiler pressure of 10.5 bar and a slightly shorter length than the subsequent deliveries (1890–1905), to which the Floridsdorf locomotive factory also contributed . In addition, the first six machines had Kamper bogies. The boiler pressure was also raised to 12.0 bar. The scope of delivery for the subsequent delivery comprised 185 pieces.
The MÁV gave the machines in their first designation scheme the numbers 183–188, 708–717, 723–732, 739–742, 1251–1253. In the second scheme from 1891 they were classified as category Ia with the numbers 11-211. In the third scheme valid from 1911 they were given the designation 220,001–197, 201–204.
Although much more powerful locomotives were developed in 1900, a number of locomotives were reproduced from this series again at this time. This shows that they are very popular with the operations service. Although they soon reached their performance limit due to increasing train weights, many locomotives in this series reached an astonishingly old age. In 1952 the last locomotives in this series were retired.
Today's 220.194 has been preserved as an operational locomotive number 204 of Lokopark Budapest .
The 220 series in Czechoslovakia
Six locomotives of the MÁV series 220 remained in the newly founded Czechoslovakia after 1918 . The ČSD gave the locomotives from 1924 the new series designation 264.5 and classified them as 264.501–506. In the ČSD network, the locomotives could only be seen on Slovak territory. The last machine, the 264.501, was taken out of service in 1937.
In the years 1895 to 1898, the Kaschau-Oderberger Bahn (KsOd) located in what was then Upper Hungary also procured five locomotives as class Ia with the operating numbers 41–45. At ČSD they were given the designation 254.401–405 from 1924. The locomotives of the 220 series could not be used freely on many routes due to their design.
See also
- MÁV series 221
- List of locomotive and multiple unit series of the MÁV
- List of locomotive and multiple unit series of the ČSD
literature
- Béla Czére, Ákos Vaszkó: Nagyvasúti vontatójármüvek Magyarországon , Kölekedési Dokumentációs Vállalat, Budapest, 1985, ISBN 963-552-161-8
- Helmut Griebl: ČSD Steam Locomotives , Vienna, 1969
- Mihály Kubinszky (Ed.): Hungarian Locomotives and Railcars , Akadémiai Kiadó, Budapest, 1975, ISBN 963-05-0125-2