Langenschwalbach Variant
| Prussian T 9 – Langenschwalbach variant | |
|---|---|
| Number(s): | DRG 90 232–233 |
| Quantity: | 19 |
| Manufacturer: | Esslingen, Schwartzkopff |
| Year(s) of manufacture: | 1892–1895 |
| Retired: | 1930 |
| Wheel arrangement: | 0-6-2T |
| Axle arrangement: | C1' |
| Gauge: | 1,435 mm |
| Length over buffers: | 10,380 mm |
| Service weight: | 53.8 t |
| Adhesive weight: | 43.8 t |
| Axle load: | 13.9 t |
| Top speed: | 50 km/h |
| Driving wheel diameter: | 1,250 mm |
| Trailing wheel diameter: | 810 mm |
| Cylinder bore: | 450 mm |
| Piston stroke: | 630 mm |
| Boiler Overpressure: | 12 bar |
| Tube heating area: | 1.73 m² |
| Evaporative heating area: | 135.80 m² |
| Brakes: | Counterweight, Heberlein, Riggenbach, Westinghouse |
The Langenschwalbach variant of the T 9 with the Prussian state railways was a 0-6-2T tank locomotive. They were planned for service on the Aartalbahn between Wiesbaden and Langenschwalbach (today Bad Schwalbach), because this line, with inclines of up to 3,3%, had proven too steep for the Prussian T 3 engines on duty there. As a result it was decided in 1889 to build eight new locomotives for the 21.4 km long route.
The engines had Allan valve gear, the carrying axle was designed as an Adams axle and the steam dome was located on the front boiler ring. Various brake systems were tested on these locos. In the 1923 renumbering plan, three locomotives were earmarked for renumbering to 90 002, 066 and 067. However by 1925 they had been retired.
In 1930, following the takeover of the Bremen harbour railway, two more locomotives of this type joined the Deutsche Reichsbahn as numbers 90 232 and 90 233. However they were retired in the same year.
Read more about this topic: Prussian T 9, T 9
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