WHO Diana
| WHO DIANA DR 99 3312 |
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|---|---|
_IMG_0029.JPG) 99 3312 DIANA in white water
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| Numbering: | DR 99 3312/99 3312-8 |
| Number: | 1 |
| Manufacturer: | Borsig |
| Year of construction (s): | 1912 |
| Type : | D n2t |
| Genre : | K 44.3 |
| Gauge : | 600 mm |
| Length over buffers: | 5700 mm |
| Height: | 2900 mm |
| Width: | 1730 mm |
| Total wheelbase: | 2400 mm |
| Smallest bef. Radius: | 30 m |
| Empty mass: | 12.0 t |
| Service mass: | 14.0 t |
| Friction mass: | 14.0 t |
| Wheel set mass : | 3.55 t |
| Top speed: | 15/25 km / h (after removing the hollow axles) |
| Indexed performance : | 60 PSi |
| Starting tractive effort: | 20.30 kN |
| Coupling wheel diameter: | 600 mm (with new wheel tires) |
| Control type : | Heusinger |
| Number of cylinders: | 2 |
| Cylinder diameter: | 240 mm |
| Piston stroke: | 300 mm |
| Boiler overpressure: | 12 bar |
| Number of heating pipes: | 67/66 (since 1998) |
| Heating pipe length: | 2300 mm |
| Grate area: | 0.45 m² |
| Radiant heating surface: | 2.38 m² |
| Tubular heating surface: | 21.22 m² |
| Evaporation heating surface: | 23.60 m² |
| Water supply: | 1.4 m³ |
| Fuel supply: | 0.6 tons of coal |
| Brake: | Throw lever brake |
| Coupling type: | Middle buffer |
The DIANA locomotive of the Muskau Forest Railway (WEM) was manufactured by Borsig in 1912 . The locomotive was given the road number 99 3312 after it was taken over by the Deutsche Reichsbahn in 1951. The locomotive is still there today and has been operational again since 1998.
history
The DIANA locomotive was manufactured by Borsig in 1912 with the serial number 8472. The delivery to the Counts of Arnimsche Kleinbahn took place on October 21, 1912. After the railway was taken over by the Deutsche Reichsbahn and renamed “Waldeisenbahn Muskau” on January 1, 1951, the machine was given the road number 99 3312. It was therefore the same Series classified as the HFB brigade locomotives of the Muskau forest railway, although they had different design features and technical data. With the introduction of the EDP numbering system at the Deutsche Reichsbahn on July 1, 1970, the new number was 99 3312-8. On October 14, 1977 it was parked as the penultimate locomotive on the Muskau Forest Railway. After the end of operations on the Muskau forest railway, the locomotive was erected as a memorial in 1978 in Oberoderwitz . The association Waldeisenbahn Muskau e. V. acquired the locomotive in 1994 and had it refurbished from 1997-1998 in the Meiningen steam locomotive works . Since then, it has been in use on the route network of the museum railway.
Constructive features
The locomotive has a riveted sheet metal outer frame. The steam dome is located behind the Kobel chimney with spark arrester type Rose . Behind it is the Latowski type of steam flume plant and the round sandpit. The sand spreader is hand operated.
The two-cylinder wet steam engine works on the third axis and has a Heusinger control with flat slides.
Originally the 1st and 4th axles were designed as Klien-Lindner hollow axles. After the conversion to normal axles, the maximum permissible speed could be increased from 15 to 25 km / h.
The suspension is provided by overhead leaf spring packages directly above the axles. The springs of the 1st and 2nd as well as the 3rd and 4th axis are connected by compensating levers.
The tender holds 0.6 tons of coal and is located at the rear of the driver's cab . The two water boxes on the side, which protrude into the driver's cab, hold 1.4 m³ of water.
The boiler is fed by 2 suction steam jet pumps.
As early as the 1930s, the locomotives of the Muskau Forest Railway received electrical lighting. Power is supplied by a 12 volt accumulator, which is housed in the right tool box under the tender.
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 .
- Klaus Kieper, Reiner Preuß: GDR narrow-gauge railway archive . 2nd Edition. transpress Verlag, 1982, ISBN 3-613-71405-1 (reprint 2011).