WEM Count Arnim

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WEM Count Arnim
DR 99 3301
Steam locomotive 04 green.jpg
Numbering: WEM No. 1 Graf Arnim
DR 99 3301
Number: 1
Manufacturer: Krauss
Year of construction (s): 1895
Retirement: 1966 (at the DR)
Type : C n2t
Genre : K 33.3
Gauge : 600 mm
Length over buffers: 8,720 mm *
Height: 2,880 mm
Width: 1,500 mm
Fixed wheelbase: 1,300 mm
Total wheelbase: 1,300 mm
Empty mass: 6.15 t
Service mass: 8.15 t
Friction mass: 8.15 t
Top speed: 15 km / h
Indexed performance : 65 PSi / 48 kW
Starting tractive effort: 15.15 kN
Driving wheel diameter: 560 mm
Control type : Stephenson
Number of cylinders: 2
Cylinder diameter: 200 mm
Piston stroke: 300 mm
Boiler overpressure: 12 bar
Grate area: 0.39 m²
Radiant heating surface: 1.93 m²
Tubular heating surface: 16.83 m²
Evaporation heating surface: 18.76 m²
Tender: 2 T 1.5
Water supply: 1.9 m³
Fuel supply: 0.7 t coal
Brake: Handbrake
* with auxiliary tender

The Graf Arnim locomotive of the former Muskau Forest Railway (WEM) is a narrow-gauge steam locomotive with no wheel sets and three coupled wheel sets . The machine built by Krauss in 1895 has not been operational since 2008, but reconditioning began in 2019. It is the oldest surviving steam locomotive with a gauge of 600 mm in Germany.

history

The Counts of Arnim'sche Kleinbahn moved the start of operations in 1895 and shortly thereafter (1896 and 1899) three tank locomotives from Munich locomotive manufacturer Krauss . The first locomotive built was named GRAF ARNIM. In the 1930s, this locomotive received a tender from a locomotive built by Orenstein & Koppel in 1919 as an auxiliary tender in order to increase the range on the extensive forest railway network, but it was still operational without a tender. The other two tank locomotives purchased from Krauss had already been taken out of service by 1945; the GRAF ARNIM, on the other hand, was taken over by the Deutsche Reichsbahn (DR) in 1951 and was given road number 99 3301. With the Reichsbahn, it was stationed on the Weißwasser – Ruhlmühle line, which had not been connected to the rest of the Waldbahn network since 1932; it was stored in its own locomotive shed at the end of Weißwasser. After the Weißwasser – Ruhlmühle line was shut down in 1966, it was shut down and only held for emergencies.

In 1969, after a general inspection at the RAW Standal, it came to the Cottbus pioneer railway, where it was put into operation in 1970. The auxiliary tender was also refurbished in 1970, where the original riveted structure was replaced by a welded one and the wooden boards were removed. It is still available today under the road number 04 at the now Cottbus Park Railway, but has been shut down since 2008 due to damage.

In 2019, the renovation of the listed buildings began with donations from the Association for the Promotion of the Cottbuser Parkeisenbahn e. V., (Monument) funds of the Federal Republic of Germany, the State of Brandenburg and the City of Cottbus. The plan is to complete the now 125-year-old machine in the Zamberk locomotive workshop (Czech Republic) by the end of 2020 and to use it again as planned at the start of the 2021 driving season.

technical features

The locomotive is similar in many features to the locomotives also manufactured by Krauss for the army field railways or colonial railways.

It has an inner frame and an external two-cylinder wet steam engine with Stephenson control and simple steam expansion. The cylinders have flat slides.

Noticeable is the Kobel chimney type Rose and the lowered, quite spacious driver's cab. In front of the chimney there is a Latowski type of steam burner. In 1963 the boiler received a new, welded steam dome and a side-mounted steam regulator in the style of brigade locomotives. The original Federwaag safety valves were replaced with those of the Ackermann type as part of this conversion.

The locomotive only has a handbrake. A hand-operated sand spreader can be used to sand the rails between the first and second and second and third wheel sets. The central buffer couplings were moved in 1995 to the coupling height of the Cottbus Park Railway.

In combination with the auxiliary tender, the vehicle can carry 3.0 m³ of water and 1.1 tonnes of coal for operating supplies.

literature

  • Manfred Weisbrod, Hans Wiegard, Hans Müller, Wolfgang Petznick: German locomotive archive. Steam locomotives 4th class 99 . Transpress, Berlin 1995, ISBN 3-344-70903-8 .
  • Klaus Jünemann, Erich Preuß: Narrow-gauge railways between the Spree and Neisse . Traffic history series . transpress Verlagsgesellschaft mbH, Berlin 1988 (2nd edition). ISBN 3-344-00307-0
  • Horst J. Obermayer: Paperback German narrow-gauge steam locomotives . Franckh, Stuttgart 1971, ISBN 3-440-03818-1