BBÖ Uh
| BBÖ Uh Zillertalbahn 5 ÖBB 498 |
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 498.04 in Grünburg station on the Steyrtal Museum Railway
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| Numbering: | BBÖ Uh.1–6, 101–102, ZB 5, ÖBB 498.01–08 |
| Number: | BBÖ: 8 ZB: 1 ÖBB: 8 |
| Manufacturer: | Krauss / Linz , Floridsdorf |
| Year of construction (s): | 1928, 1931 |
| Retirement: | 1973 (ÖBB) |
| Axis formula : | C1 h2t |
| Gauge : | 760 mm ( Bosnian gauge ) |
| Length over coupling: | 8.020 m |
| Height: | 3,400 m |
| Width: | 2,432 mm |
| Total wheelbase: | 4,000 mm |
| Empty mass: | 21.7 t |
| Service mass: | 28.1 t |
| Friction mass: | 22.4 t |
| Top speed: | 40 km / h |
| Driving wheel diameter: | 800 mm |
| Rear wheel diameter: | 540 mm |
| Control type : | Caprotti valve control (Uh.1–6) Lentz valve control (Uh.101–102) |
| Number of cylinders: | 2 |
| Cylinder diameter: | 350 mm |
| Piston stroke: | 400 mm |
| Boiler overpressure: | 13.0 atm |
| Number of heating pipes: | 47/18 |
| Heating pipe length: | 3,250 mm |
| Grate area: | 1.06 m² |
| Radiant heating surface: | 4.8 m² (in contact with water) |
| Tubular heating surface: | 21.35 m² (in contact with water) |
| Superheater area : | 15.15 m² (in contact with steam) |
| Evaporation heating surface: | 48.38 m² (in contact with water) |
| Water supply: | 3.0 m³ |
| Fuel supply: | 1.65 m³ |
| Brake: | Vacuum brake |
The BBÖ Uh was a narrow gauge - Steam Locomotive series , which was built in the 1920s.
history
A large number of U class narrow-gauge locomotives remained outside of the new Austria after the First World War . That is why the Austrian Federal Railways ( BBÖ) procured a newly developed series of superheated steam locomotives , also as a replacement for outdated, inefficient types . The tried and tested C1 axle order of the U was retained, but the outer frame under the driver's cab was omitted.Instead, the superheated steam boiler, which is much larger in diameter than the U, was placed higher in order to create adequate space for the fire box . The cylinder diameter was 350 mm and a Caprotti valve control was selected as the control. The maximum speed was 40 km / h.
Between 1928 and 1930 six locomotives were built by Krauss in Linz , the first of which was used on the Ybbstalbahn . On the Pinzgaubahn , they replaced the Z series , which was too weak for trolley operation . In 1931, the Floridsdorf locomotive factory bought two more machines, in which the Caprotti control was replaced by the more conventional Heusinger control with Lentz valves (Lentz valve control).
After the annexation of Austria , the locomotives were taken over as 99.821–828 in the numbering scheme of the Deutsche Reichsbahn .
After the Second World War , all eight machines became part of the ÖBB and were taken over as series 498 in the new numbering scheme introduced in 1953. In 1960 the locomotives 498.01, 02 and 05 were decommissioned and sold to the Österreichisch-Alpine Montangesellschaft . These changed the gauge of the locomotives to 830 mm and used them until they were electrified and re-gauged to 900 mm in 1967 on the ore railway in Radmer in Styria .
The remaining locomotives remained in service until around the mid-1960s and were ultimately replaced by the 2095 series diesel locomotives . The 498s were not formally retired until 1973, after they had been parked in Ober-Grafendorf on the Mariazellerbahn for several years . The five machines that remained with the ÖBB were erected as monuments after they were taken out of service or acquired by museum railroad associations .
The last 498.08 (Uh.102) to be built is in use on the Bregenzerwaldbahn , 498.04 is on the Steyrtalbahn and has been operational again since September 2012 after the main inspection. Furthermore, the 498.07 has been placed at the Pinzgauer Lokalbahn in Krimml.
The Zillertalbahn also acquired a Uh series locomotive in 1930, which bears the number 5 there . This is still in active use today in front of the popular tourist trains on this railway. It was equipped with an oil furnace in 2010.
Individual evidence
- ↑ : Vehicle list of the Pinzgauer Lokalbahn ( memento of the original from September 15, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (last accessed on November 18, 2008)
- ↑ Annual Report 2010 - Zillertalbahn - Bahn (pdf). (PDF; 1.2 MB) (No longer available online.) Formerly in the original ; Retrieved April 22, 2012 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
literature
- Roland Beier: U series (= Transpress vehicle portrait ). Transpress-Verlag, Stuttgart 2001, ISBN 3-613-71152-4 .
- Walter Krobot, Josef Otto Slezak , Hans Sternhart: Narrow gauge through Austria. History and fleet of narrow-gauge railways in Austria (= International Archive for Locomotive History . Vol. 3). 4th edition. Slezak, Vienna 1991, ISBN 3-85416-095-X .
- Dieter Zoubek: Preserved steam locomotives in and from Austria. = Preserved Austrian Steam Locos. Self-published, Guntramsdorf 2004, ISBN 3-200-00174-7 .
