DR series 99.10
| Pts 3/3 H (Pfalz) DR class 99.10 |
|
|---|---|
| Numbering: | XXXI-XXXIII DR 99 101-103 |
| Number: | 3 |
| Manufacturer: | Krauss |
| Year of construction (s): | 1923 |
| Retirement: | 1957 |
| Type : | C h2t |
| Genre : | K 33.8 |
| Gauge : | 1000 mm ( meter gauge ) |
| Length over buffers: | 5,945 mm |
| Height: | 3,700 mm |
| Fixed wheelbase: | 1,800 mm |
| Empty mass: | 19.3 t |
| Service mass: | 24.2 t |
| Friction mass: | 24.2 t |
| Wheel set mass : | 8.07 t |
| Top speed: | 30 km / h |
| Coupling wheel diameter: | 845 mm |
| Driving wheel diameter: | 845 mm |
| Control type : | Heusinger |
| Number of cylinders: | 2 |
| Cylinder diameter: | 350 mm |
| Piston stroke: | 350 mm |
| Boiler overpressure: | 12 bar |
| Number of heating pipes: | 73 |
| Number of smoke tubes: | 12 |
| Heating pipe length: | 2,500 mm |
| Grate area: | 0.85 m² |
| Radiant heating surface: | 3.52 m² |
| Tubular heating surface: | 22.1 m² |
| Superheater area : | 10.14 m² |
| Evaporation heating surface: | 35.02 m² |
| Water supply: | 2.0 m³ |
| Fuel supply: | 1.2 tons of coal |
| Locomotive brake: | Throw lever handbrake |
The 99.10 series, the Deutsche Reichsbahn for Pfalzbahn was a hot steam execution of PtS 3/3 N .
history
The increased volume of traffic on the meter-gauge railways in the Front Palatinate in the 1920s of the former Royal Bavarian State Railroad required another order for tram locomotives. In contrast to the L 1 and PtS 3/3 N machines that were last delivered , they now switched to the superheated steam design.
procurement
In 1923 the Deutsche Reichsbahn Gesellschaft ordered three machines from Krauss which were delivered with the serial numbers 7987 to 7989. When they were delivered, they were given the Palatinate numbers XXXI to XXXIII and were referred to as Pts 3/3 H according to the Bavarian system . It was not until 1924 that they were given the Reichsbahn numbers 99 101 to 99 103 .
operation area
The machines were used on the Palatinate local railways in the Ludwigshafen am Rhein area ( Ludwigshafen-Dannstadt , Ludwigshafen-Frankenthal and Frankenthal-Großkarlbach ) and the local railroad Speyer-Neustadt .
Whereabouts
In the maintenance inventory of the French occupation zone in 1948, the locomotives with the numbers 99 101, 99 102 and 99 103 were run for the Friedrichshafen repair shop - all the narrow-gauge locomotives of the French occupation zone were brought together there.
The locomotives were retired on April 19, 1956 and August 16, 1957.
construction
frame
The locomotives had a riveted sheet metal box frame. As is customary with the Krauss locomotives, the water tank with a capacity of 2.0 m³ of water was located within the frame. The frame had transverse reinforcements on the drawbar and buffer beam.
boiler
The locomotives had a two-section, riveted long boiler with a steam dome on the second section. The boiler pressure was 12 atm
control
In contrast to the previous models, this type was changed from the Allan to an external Heusinger control .
brake
Suction air brakes of the Körting type and throw lever brakes were installed.
construction
In contrast to the wet steam examples of the predecessor series L 1 , the box structure no longer extended over the entire length of the locomotive, but the smoke chamber with chimney was excluded, and a coal box was also attached to the rear of the driver's cab.
Stocks
The locomotives carried 2.0 m³ of water and 1.2 t of coal .
Locomotive numbers
| Manufacturing data | Numbers per epoch | Further information | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
Serial No. |
manufacturers manufacturers |
construction year |
Serial number |
Pfalzbahn / KBSts.B. | DR road no. | excluded screened |
|||
| Track no. | Surname | (provisionally) | (final) | ||||||
| 1 | Krauss | 1923 | 7987 | XXXI | 99 101 | 99 101 | April 18, 1956 | ||
| 2 | 7988 | XXXII | 99 102 | 99 102 | August 10, 1957 | ||||
| 3 | 7989 | XXXIII | 99 103 | 99 103 | August 10, 1957 | ||||
Individual evidence
- ↑ Pepke, locomotives Palatine railways, first edition 2011
- ↑ Hans-Wolfgang Scharf, LokMagazin 94, Jan / Feb. 1974, documentation on the railways in the French Zone of occupation, February 1948
literature
- Lothar Spielhoff: Locomotives of the Palatinate Railway . Jürgen Pepke, Germering 2011, ISBN 978-3-940798-15-2 .
- Manfred Weisbrod, Hans Wiegard, Hans Müller, Wolfgang Petznick: German Locomotive Archive: Steam Locomotives 4 (Class 99) . transpress, Berlin 1995, ISBN 3-344-70903-8 , pp. 27-29, p. 243 .