Württemberg Ac
| Ac (Württemberg) DR class 34.82 |
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| Numbering: | DR 34 8201-8209 |
| Number: | 31 |
| Manufacturer: | Esslingen |
| Year of construction (s): | 1889-1897 |
| Retirement: | 1926 |
| Type : | 1B n2v |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 14,092 mm |
| Service mass: | 40.4 t |
| Friction mass: | 27.2 t |
| Wheel set mass : | 13.6 t |
| Top speed: | 80 km / h |
| Driving wheel diameter: | 1,650 mm |
| Impeller diameter front: | 1,045 mm |
| Cylinder diameter: | 420/600 mm |
| Piston stroke: | 560 mm |
| Boiler overpressure: | 14 bar |
| Grate area: | 1.60 m² |
| Evaporation heating surface: | 105.30 m² |
| Tender: | 2 T 10 |
| Water supply: | 10 m³ |
The locomotives of the class Ac of the Royal Württemberg State Railways were steam locomotives with compound engines (English "compound", hence the "c" in the generic name). The 31 copies were built between 1889 and 1897 by the Esslingen machine works .
With this type of construction, after convincing operational experience from Saxony and Prussia, the joint process was also used in Württemberg for the first time. Based on the class A , five test locomotives were initially built in 1889, with which the hoped-for coal savings could not be achieved. It was only when the boiler pressure was increased from 117.7 N / cm² to 137.3 N / cm² that the system was successful.
Like the class A locomotives, from which they hardly differed externally, the Ac were equipped with type 2 T 10 tenders .
The German Reichsbahn took over in 1925 as the series 34.82 nine of 31 cars with numbers 34 8201 to 34 8209. However, they were already retired 1926th
literature
Horst J. Obermayer: Paperback German steam locomotives. Control track . 2nd Edition. Franckh'sche Verlagshandlung, Stuttgart 1970, ISBN 3-440-03643-X , p. 84 .