MÁV IVc
| MÁV IVc MÁV series 421 ČSD series 414.5 |
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 MÁV IVc 4312
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| Numbering: | MÁV IVc 4301–4335 MÁV 421,001–035 ČSD 414.501–514 |
| Number: | 35 |
| Manufacturer: | Budapest |
| Year of construction (s): | 1894-1896 |
| Axis formula : | D n2 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 16,430 mm |
| Length: | 10,578 mm |
| Height: | 4,570 mm |
| Width: | 3,150 mm |
| Total wheelbase: | 4,600 mm |
| Empty mass: | 50.25 t |
| Service mass: | 56.15 t |
| Friction mass: | 56.15 t |
| Top speed: | 40 km / h |
| Driving wheel diameter: | 1,220 mm |
| Control type : | Heusinger-Walschaert |
| Number of cylinders: | 2 |
| Cylinder diameter: | 520 mm |
| Piston stroke: | 610 mm |
| Boiler overpressure: | 13 atü |
| Number of heating pipes: | 238 |
| Heating pipe length: | 4,000 mm |
| Grate area: | 2.9 m² |
| Radiant heating surface: | 12.5 m² |
| Tubular heating surface: | 155.6 m² |
| Brake: | Westinghouse |
The MÁV IVc were freight train - Tender locomotives of Hungarian State Railways (MÁV).
history
The heavy freight traffic on the Fiuman mountain route necessitated a new order for four-way coupled machines. The Budapest machine works used the boiler of the categories MÁV Ie , MÁV Ih and MÁV Ik ( MÁV series 222 , MÁV series 320 , MÁV series 321 ) for the construction of these powerful freight locomotives. The wet steam twin system was used. The last axis could be moved sideways by 30 mm in order to achieve better cornering. The vehicles had external frames and Heusinger controls . 35 copies were built from 1894 to 1896. Since the sheet travel was not satisfactory despite the movable axis, the order for further machines of this type was canceled. As a result, the MÁV had Mallet locomotives built to guarantee the desired cornering.
The MÁV first gave the vehicles the numbers 4301–4335 and the category IVc, from 1911 the designation 421,001–035.
Through territorial assignment , 14 machines came to the Czechoslovak State Railways ČSD , which they designated as the 414.5 series and used on Slovak territory. These machines were retired after the Second World War .
See also
- List of locomotive and multiple unit series of the MÁV
- List of locomotive and multiple unit series of the ČSD
literature
- Type sheets of the machine works of the Royal Hungarian State Railways . 1907.
- Mihály Kubinszky (ed.): Hungarian locomotives and railcars . Akadémiai Kiadó, Budapest 1975, ISBN 963-05-0125-2 .
- Ernő Lányi et al .: Nagyvasúti Vontatójárművek Magyarországon . Ed .: Közlekedési Múzeum. Közlekedési Dokumentációs Vállalat, Budapest 1985, ISBN 963-552-161-8 .
- Helmut Griebl: ČSD Steam Locomotives , Vienna, 1969