FBB 21 to 24
| FBB No. 21–24 ČSD series 311.5 |
|
|---|---|
| Numbering: | FBB 21–24 ČSD 311.501 - 504 |
| Number: | 4th |
| Manufacturer: | Krauss , Linz |
| Year of construction (s): | 1902/1908 |
| Retirement: | 1948/1949 |
| Type : | Cn2t |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 8,073 mm |
| Fixed wheelbase: | 2,600 mm |
| Total wheelbase: | 2,600 mm |
| Empty mass: | 25 t |
| Service mass: | 33 t |
| Friction mass: | 33 t |
| Wheel set mass : | 11 t |
| Top speed: | 40 km / h |
| Indexed performance : | 230 kW |
| Driving wheel diameter: | 1,140 mm |
| Control type : | Allan's trick |
| Number of cylinders: | 2 |
| Cylinder diameter: | 380 mm |
| Piston stroke: | 570 mm |
| Boiler overpressure: | 12 bar |
| Grate area: | 1.31 m² |
| Evaporation heating surface: | 74.93 m² |
| Water supply: | 4 m³ |
| Fuel supply: | 1.5 tons of coal |
The FBB 21 to 24 were local railway tender locomotives of the Friedländer Bezirksbahn (FBB). The triple-coupled machines were procured in 1902 and 1908 for operation on the Friedland – Heinersdorf local railway .
history
On August 3, 1902, the Friedland District Railway opened the new 23.3 km long local railway from Friedland (today: Frýdlant) to Heinersdorf aT (today: Jindřichovice pod Smrkem), which made the connection to the Silesian lines of the Prussian State Railway there. For this local railway, the Friedland District Railway purchased three small tank locomotives from Krauss in Linz in 1902 . Another identical locomotive was ordered in 1908.
In addition to the company numbers 21 to 24, the machines were given the names RÜCKERSDORF , NEUSTADT / T , HEINERSDORF and TAFELFICHTE from FBB . After the nationalization of the Friedland District Railway in 1924, the locomotives came to the Czechoslovak State Railway ČSD, which gave them the numbers 311.501 to 311.504.
After the Sudetenland became part of Germany in autumn 1938, the Deutsche Reichsbahn put the locomotives under the new operating numbers 98 7751 to 98 7754 in their fleet. After 1945 the locomotives returned to the ČSD. With the commissioning of new railcars of the ČSD series M 131.1 , the small machines were no longer needed and were retired and scrapped by 1949.
Finally, it should be noted that the CSD already the numbers 311501-502 previously to two former locomotives of the State Railway Company (see. StEG II 621-651 had) awarded the 1891 with the nationalization of the Hungarian track pieces first to MÁV which after First World War but came to the Czechoslovak State Railways. They were retired before the four FBB vehicles were taken over.