Mosbach – Mudau No. 1 to 4
| Mosbach – Mudau No. 1 to 4 series 99 720 |
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 99 7203 in December 2006
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| Numbering: | No. 1-4 DR 99 7201-7204 |
| Number: | 4th |
| Manufacturer: | Borsig |
| Year of construction (s): | 1904 |
| Retirement: | 1964/1965 |
| Type : | C n2t |
| Genre : | K 33.8 |
| Gauge : | 1000 mm ( meter gauge ) |
| Length over buffers: | 7060 mm |
| Height: | 3600 mm |
| Width: | 2260 mm |
| Total wheelbase: | 2140 mm |
| Empty mass: | 18.0 t |
| Service mass: | 23.0 t |
| Friction mass: | 23.0 t |
| Wheel set mass : | 7.7 t |
| Top speed: | 35 km / h |
| Indexed performance : | 160 PS / 118 kW |
| Coupling wheel diameter: | 900 mm |
| Control type : | Allan |
| Number of cylinders: | 2 |
| Cylinder diameter: | 320 mm |
| Piston stroke: | 420 mm |
| Boiler overpressure: | 12 bar |
| Number of heating pipes: | 129 |
| Heating pipe length: | 2865 mm |
| Grate area: | 0.77 m² |
| Radiant heating surface: | 4.03 m² |
| Tubular heating surface: | 43.12 m² |
| Superheater area : | 47.15 m² |
| Water supply: | 2.4 m³ |
| Fuel supply: | 0.95 tons of coal |
| Locomotive brake: | External throwing lever brake |
| Train brake: | Körting suction air brake , later Westinghouse air brake |
| Coupling type: | Balance lever coupling |
The locomotives number 1 to 4 of the meter gauge - railway Mosbach-Mudau are schmalspurige triaxial tank locomotives. After the takeover by the Deutsche Reichsbahn , the machines were classified in the 99 720 series. All four machines have been preserved.
history
commitment
On behalf of the Grand Ducal Baden State Railways , the Berlin company Vering & Waechter built the railway line from Mosbach to Mudau from 1903 to 1904. From April 1, 1917, the operation of the line was the responsibility of the Deutsche Eisenbahn-Betriebsgesellschaft . The von Borsig company procured four triple-coupled tank locomotives as locomotives. On delivery, the locomotives were painted in three colors: driver's cab, coal boxes and boiler green, smoke chamber and chimney black and the chassis dark red. In the 1920s the locomotives were then painted black. On May 1, 1931, the Deutsche Reichsbahn took over operations on the line. The locomotives were classified as class 99 720 in the numbering plan. By then, the locomotives had covered over 500,000 kilometers. In 1932 electrical locomotive and train lighting was installed by AEG. The mileage increased sharply during the times of the Reichsbahn. Between 1931 and 1941, between 250,000 and 350,000 kilometers were covered. The locomotives based in Mudau were in use until the early 1960s and were responsible for all traffic on the line.
Retirement and whereabouts
From the summer of 1964, the steam locomotives were replaced by class V 52 diesel locomotives . The last ride with a steam locomotive took place on September 26, 1964. The 99 7203 was the first locomotive to be retired on October 26, 1964; the rest of the locomotives followed on March 10, 1965.
However, the locomotives were all preserved. The 99 7201 (formerly No. 1) was set up in 1968 in Salzweg near Passau. In 2007 the locomotive was acquired by the Hirzbergbahn interest group and is currently being refurbished.
The 99 7202 (formerly No. 2) stood for a while at the Mudau train station and was erected in 1970 as a memorial at the Odenwaldhalle in Mudau . Since 1982, the locomotive has been back at Mudau station under weather protection. The locomotive is owned by Deutsche Bahn AG.
The 99 7203 (formerly no. 3) was acquired by the Albtal-Verkehrs-Gesellschaft on November 13, 1964 and was used as a construction locomotive until August 1965 for the gauging of the Albtalbahn. The locomotive was then parked in Busenbach and at the Karlsruhe gas works. In 1978 the locomotive was given on loan to the Rhine-Neckar Railway Museum of the DGEG in Viernheim . In November 1986 the Ulm Railway Friends received the locomotive on permanent loan. After a refurbishment, they have been using them in museum operations since June 30, 1990 on the remaining part of the Amstetten – Oppingen section of the Amstetten – Laichingen line .
99 7204 (formerly No. 4) was acquired in 1969 by a wood processing company from Oberbernbach and parked on the company's premises. In 1999 the Märkische Museums-Eisenbahn (MME) association from Herscheid acquired the locomotive. In 2014 it was sold to a private person from the Netherlands who is planning a refurbishment.
Constructive features
The locomotives had a riveted sheet metal frame. In the front part it was designed as a water tank. The riveted, high-lying long shell consisted of three shots. The steam dome sat on the first shot and the angular sand container on the third. The Ramsbottom safety valves were mounted on the top of the standing boiler. The copper firebox reached between the frame cheeks. During an interim investigation in 1962, the 99 7203 was given a steel fire box. Two suction steam jet pumps serve to feed the boiler.
The slightly inclined two-cylinder wet steam engine was on the outside and worked on the rearmost coupled axle. The external Allan control had Trick's flat slide and cranks to transfer the lifting movements.
The drive was supported at six points. The leaf spring assemblies were located above the axle bearings and were not connected by compensating levers. The coupled wheel sets were firmly mounted in the frame. The locomotives originally had a Körting suction air brake . With the introduction of roller cart traffic on the route in the mid-1920s, the brake was replaced by a Westinghouse air brake . The main air reservoir was placed on the boiler between the steam dome and the sandpit. An Extersche throw lever brake was available as a locomotive brake. The brakes worked on all wheels from the front.
The sand spreader sanded the middle wheel set when driving forward and the driving wheel set when driving backwards. Behind the chimney, which was fitted with a wire basket as a spark arrester, was the Latowski bell. In 1956 a third headlight was added and in 1958 the Knorr type air pumps were replaced by Tolkien type two-stage air pumps.
The water supply was arranged in a water tank in the frame and two small containers in front of the driver's cab. The coal was on the left water tank in front of the driver's cab.
literature
- Hermann Lohr, Georg Thielmann: Baden locomotive archive . transpress, Berlin 1988, ISBN 3-344-00210-4 .
- Manfred Weisbrod, Hans Wiegard, Hans Müller, Wolfgang Petznick: German Locomotive Archive: Steam Locomotives 4 (Class 99) . transpress, Berlin 1995, ISBN 3-344-70903-8 .
- Josef Högemann: Narrow-gauge railway Mosbach - Mudau. Kenning Verlag, Nordhorn 1993, (secondary line documentation 5), ISBN 3-927587-15-X
- Alexander Neumann: 99 7201-7204. Four steam locomotives celebrate their hundredth. in: Die Museumseisenbahn 3/2004, pp. 10–21. ISSN 0936-4609 PDF download
Individual evidence
- ↑ In the literature, the locomotives are also referred to as class C of the Baden State Railways.
- ↑ http://www.sauerlaender-kleinbahn.de/aktuelles/dampflok-99-7204-wird-wieder-dampfen/#more-2648