kkStB 470
| kkStB 470 / BBÖ 470 / BBÖ 670 / ÖBB 39 | ||
|---|---|---|
 Factory photography of the 470.08 in photo painting
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| kkStB / BBÖ 470 | BBÖ 670 | |
| Axis formula | 1'D1 'h4v | 1'D1 'h2 |
| Cylinder Ø | 2x450 / 2x690 mm | 560 mm |
| Piston stroke | 680 mm | |
| Drive wheel Ø | 1614 mm | |
| Impeller Ø at the front | 1034 mm | |
| Rear wheel Ø | 1034 mm | |
| fixed wheelbase | 5070 mm | |
| Total wheelbase | 9450 mm | |
| Total wheelbase with tender | 17436 mm | |
| Number of d. Tube | 164 | |
| Heating fl. d. Tube | 175.6 m² | |
| Number of d. Smoke pipes | 24 | |
| Superheater surface | 49.4 m² | |
| Heating fl. d. Fire box | 15.5 m² | |
| Grate | 4.6 m² | |
| Vapor pressure | 15th | |
| tender | 9 , 56 , 156 , 256 , 76 , 86 , 88 | |
| Weight (empty) | 79.5 t | k. A. |
| Adhesion weight | 58.0 t | 57.0 t |
| Service weight | 86.7 t | 84.7 t |
| length | 18.685 m | |
| height | 4,650 m | |
| Vmax | 80/90 km / h | |
The kkStB 470 was a hot steam - Train Locomotive of Imperial State Railways of Austria .
In order to be able to cope with the competition of the Südbahn , the kkStB needed a strong mountain express locomotive on the route of the former Crown Prince Rudolf-Bahn KRB. Karl Gölsdorf therefore designed a quadruple coupled locomotive with leading and trailing axles, taking over the boiler from the 380 series . The machines received a four-cylinder compound engine with two inner high-pressure and two outer low-pressure cylinders.
The two test machines delivered in 1914 were followed by ten more machines in 1918 and 1919, which differed in small details - the most noticeable was the second steam dome, which contained a scale separator. Due to the war, the copper firebox was also replaced by one made of steel. All twelve machines were manufactured in the Floridsdorf locomotive factory . A reorder of 15 pieces was canceled because the war industry had to give preference to the construction of freight locomotives.
Since the series attracted attention due to its high coal consumption, the BBÖ had eight of the machines converted into superheated steam twins (series 670 ) from 1927 to 1929 , which also received Lenz valve control and, in some cases, Dabeg preheater pumps. The remaining machines were taken out of service. The conversion was a complete success: the locomotives were economical in consumption and ran smoothly. They were transferred to the Franz-Josefs-Bahn in 1931 .
The Deutsche Reichsbahn designated it from 1938 as 39.301−308 and left it on its original route. After the end of the Second World War , the ÖBB remained seven copies. Stationed in Vienna's Franz-Josefs-Bahnhof , which was located in the US occupation zone after the war , the 39 series was regularly used in front of the “Mozart” express train to Salzburg and Munich, which was reserved exclusively for members of the US occupiers. The locomotives were decommissioned by 1957, only 39,304 remained in operation as a preheating system until 1966. None of the locomotives was preserved in a museum.
literature
- Directory of the locomotives, tenders, water cars and railcars of the kk Austrian State Railways and the state-operated private railways as of June 30, 1917 , 14th edition, published by the kk Austrian State Railways, Vienna, 1918
- Karl Gölsdorf: Lokomotivbau in Alt-Österreich 1837-1918 , Verlag Slezak, 1978. ISBN 3-900134-40-5
- Heribert Schröpfer: Traction vehicles of Austrian railways - steam locomotives BBÖ and ÖBB , alba-Verlag, Düsseldorf, 1989, ISBN 3-87094-110-3
- Johann Stockklausner: Steam company in Old Austria , Slezak publishing house, Vienna, 1979, ISBN 3-900134-41-3
- Johann Blieberger, Josef Pospichal: die kkStB-Triebfahrzeuge, Volume 3. The series 61 to 380. bahnmedien.at, 2010, ISBN 978-3-9502648-6-9