Prussian T 39
| Prussian T 39 DR series 99.43–44 PKP Tw3 / Tw9 |
|
|---|---|
| Numbering: | 99 431-435, 99 441-446 |
| Number: | 7/6 * |
| Manufacturer: | Orenstein & Koppel |
| Year of construction (s): | 1919/20, 1925/26 * |
| Type : | E h2t |
| Genre : | K 55.8; K 55.9 * |
| Gauge : | 785 mm |
| Length over buffers: | 9,304 mm |
| Service mass: | 40.00 t; 44.00 t * |
| Friction mass: | 40.00 t; 44.00 t * |
| Top speed: | 25 km / h |
| Driving wheel diameter: | 820 mm; 850 mm * |
| Control type : | Heusinger |
| Number of cylinders: | 2 |
| Cylinder diameter: | 450 mm |
| Piston stroke: | 450 mm |
| Boiler overpressure: | 13 bar |
| Grate area: | 1.40 m² |
| Superheater area : | 21.50 m² |
| Evaporation heating surface: | 49.50 m² |
| Water supply: | 4.5 m³ |
| Fuel supply: | 1.75 tons of coal |
| Particularities: | * 99.44 |
The vehicles of the 99.43-44, T 39 series were locomotives of the Prussian State Railways . A total of seven examples of the first series were built for Prussia in 1919 and 1920 , five of which were taken over by the Reichsbahn with the numbers 99 431-99 435. Orenstein & Koppel delivered another six copies to the Reichsbahn between 1925 and 1926 . These had larger drive wheels and were a little heavier. They were given the numbers 99 441-99 446.
After 1945, the remaining locomotives of the Polish State Railways ( PKP ) were given the series designation Tw3 or Tw9.
The locomotives had an inner frame, and their cylinders were unusually high because of the narrow vehicle width. They had Heusinger controls and the third axle was driven.
The end axles of the five coupling axles were not driven by rods, but by a Luttermöller type gear drive and could be moved laterally. The middle driving axle also had no flanges , which made the vehicles more agile in the curves.
They had outside buffers and the coupling was in the middle.
The vehicles could hold 1.75 tons of coal and 4.5 m² of water.
literature
- Manfred Weisbrod, Hans Wiegard, Hans Müller, Wolfgang Petznick: German Locomotive Archive: Steam Locomotives 4 (Class 99) . transpress, Berlin 1995, ISBN 3-344-70903-8 , pp. 70-73, 247 .