SCP 101-112

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SCP 101-112
TCDD 45.121-132
Numbering: SCP 101-112
TCDD 45.121-45.132
Number: 12
Manufacturer: Humboldt
Year of construction (s): 1912
Retirement: until 1982
Axis formula : 1'D
Type : 1'D h2
Gauge : 1435 mm ( standard gauge )
Length over buffers: 17100 mm
Fixed wheelbase: 4900 mm
Total wheelbase: mm
Service mass: 61.9 t
Service mass with tender: 98.9 t
Friction mass: 50.4 t
Wheel set mass : 12.6 t
Top speed: 65 km / h
Indexed performance : 1010 PSi
Starting tractive effort: 11900 N
Coupling wheel diameter: 1400 mm
Driving wheel diameter: 1400 mm
Impeller diameter front: 850 mm
Number of cylinders: 2
Cylinder diameter: 530 mm
Piston stroke: 660 mm
Boiler overpressure: 12 bar
Grate area: 2.4
Radiant heating surface: 12.3 m²
Superheater area : 33.0 m²
Evaporation heating surface: 174.1 m²
Tender: 3T15
Service weight of the tender: 37.0 t
Water supply: 15.0 m 3
Fuel supply: 7 t
Coupling type: Screw coupling

The Tender locomotives 101-112 of the Turkish Smyrne Cassaba & Prolongements (SCP) with the wheel arrangement 1'D were in 1912 by the German Maschinenbauanstalt Humboldt in Cologne for use on the main lines of the SCP from Izmir to Afyonkarahisar and to Bandırma delivered . Together with SCP, the locomotives went to the Turkish state railway TCDD in 1934, which decommissioned the last machines in the early 1980s.

history

In 1912, the SCP opened its last new line with the Manisa – Bandırma railway . For the new, around 180-kilometer-long route, which was an important part of the combined ship-rail connection between Istanbul and Izmir, SCP needed new locomotives that were sufficiently powerful for passenger transport on the steeply inclined route and at the same time for the low axle loads of the rest of the SCP network. The design of the Humboldt mechanical engineering institute was based on three superheated steam locomotives delivered by Maffei to the Damas-Hama et Prolongements (DHP) railway in 1910 . The required performance program envisaged the transport of 180 tons of train weight on a slope of 1:40 with at least 16 km / h and on the level of 720 tons with 65 km / h. The Humboldt locomotives, which had turned out to be relatively small for a “consolidation” and also had slightly smaller dimensions compared to their DHP models, fulfilled this range of services. In total, the SCP received 12 machines with the Humboldt serial numbers 798 to 809.

After delivery, the SCP mainly used the locomotives for passenger transport between Izmir and Bandirma, but they also hauled other types of trains. The nationalization of the SCP in 1934 changed little in this area of ​​responsibility. The TCDD included the locomotives with the numbers 45.121 to 45.132 in their inventory. After the Ottoman Railway Company (ORC), which also began in Izmir, was also nationalized a year later, the area of ​​operation of the locomotives stationed in Izmir expanded to include the ORC lines, which are analogous to the SCP lines with relatively light superstructures. With the delivery of newer series, the locomotives lost their services before the passenger trains to Bandırma, their successors were mainly the German "war locomotives", which the TCDD had taken over as TCDD 56 501-553 . Instead, the SCP locomotives mainly provided services in suburban transport from Izmir ( Banliyö Trenleri ).

The TCDD began to retire in the 1970s. The last locomotive delivered by Humboldt with the number 45.132 remained in service until 1982, most recently in shunting service at the İzmir Alsancak station . It is the only machine in the series that has been preserved and is in the Çamlık Railway Museum near Izmir .

technical features

The locomotives were designed as simple two-cylinder superheated steam locomotives with sheet metal frames and were considered modern and powerful machines for their year of construction. The design as a superheated steam locomotive made a major contribution to this; this technology had not yet caught on everywhere in 1912 and was considered complicated and not a matter of course , especially under the conditions of a railway in the then largely agrarian Ottoman Empire . Robert Garbe , who had implemented superheated steam operation on the Prussian State Railways , therefore presented the series in detail in 1920 in the second edition of his textbook "The Steam Locomotives of the Present". Moreover, four years later it served as a model for the products supplied by French producers locomotives CFO 241-262 of the Chemins de fer Orientaux (CFO) in the European part of Turkey.

The SCP locomotives only differed slightly from the DHP model, for example in terms of cylinder diameter and boiler length. Due to the relatively weak superstructure of the SCP lines, they were designed for an axle load of only 12.6 tons. Unlike their CFO successors, they did not receive smoke deflectors .

literature

  • Benno Bickel, Karl-Wilhelm Koch, Florian Schmidt: Steam under the half moon. The last few years of steam operation in Turkey. Verlag Röhr, Krefeld 1987, ISBN 3-88490-183-4
  • AE Durrant: The Steam Locomotives of Eastern Europe. David & Charles, Newton Abbot 1972, ISBN 0-7153-4077-8

Web links

Individual evidence

  1. Trains of Turkey: Preserved Steam , accessed December 29, 2015
  2. ^ Benno Bickel, Karl-Wilhelm Koch, Florian Schmidt: Steam under the half moon. The last few years of steam operation in Turkey. Verlag Röhr, Krefeld 1987, ISBN 3-88490-183-4 , p. 91