DR series 02
| DR series 02 | |
|---|---|
 |
|
| Numbering: | 02 001-010 |
| Number: | 10 |
| Manufacturer: | Henschel , Maffei |
| Year of construction (s): | 1925, 1926 |
| Retirement: | 1937 to 1942 conversion to series 01, formerly 02 003 (01 234) retired on May 8, 1972 |
| Type : | 2'C1 ' h4v |
| Genre : | S 36.20 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 23,750 mm |
| Height: | 4,650 mm |
| Fixed wheelbase: | 12,400 mm |
| Wheelbase with tender: | 20,320 mm |
| Empty mass: | 103.9 t |
| Service mass: | 113.5 t |
| Friction mass: | 60.3 t |
| Top speed: | forward 130 km / h, backwards 50 km / h |
| Indexed performance : | 1,692 kWi (approx. 2,300 PS) |
| Driving wheel diameter: | 2000 mm |
| Impeller diameter front: | 850 mm |
| Rear wheel diameter: | 1250 mm |
| Number of cylinders: | 4th |
| Cylinder diameter: | 2 × 460/720 mm |
| Piston stroke: | 660 mm |
| Boiler overpressure: | 16 bar |
| Number of heating pipes: | 129 |
| Number of smoke tubes: | 43 |
| Heating pipe length: | 5,800 mm (001–009) 6,800 mm (010) |
| Grate area: | 4.41 m² |
| Radiant heating surface: | 17.0 m² |
| Tubular heating surface: | 220.56 m² |
| Superheater area : | 100.0 m² |
| Evaporation heating surface: | 237.56 m² |
| Tender: | 2'2 T 32 (2'2 T 30) |
| Water supply: | 32.0 m³ (30 m³) |
| Fuel supply: | 10.0 tons of coal |
| Brake: | Single-chamber compressed air brake type Knorr, acting on all coupling wheels from the front on one side |
| Train heating: | steam |
| Control: | Heusinger |
| Particularities: | originally small Wagner smoke deflectors |
The steam locomotives of Series 02 were unit - express train locomotives of the German State Railroad Company (DRG) with four-cylinder compound engine. 02 001 was the DRG's first completed standard steam locomotive.
history
When purchasing a standard express train steam locomotive, the Deutsche Reichsbahn carried out a comparison of a superheated steam twin design ( series 01 ) with a four-cylinder composite design (series 02). Ten advance copies of both types were built from 1925 onwards. The vehicles of the 02 series were given the road numbers 02 001–02 010. The first eight locomotives were manufactured in 1925 by the Henschel company , and two more in 1926 by Maffei .
Since the steam engine of the 02 series was inadequately designed, the compound steam engine could only develop an appealing, higher performance at speeds above 70 km / h . Below 1000 PSi, the steam consumption was also higher than with the 01 series - a point of criticism.
Since the vehicles also had a more complicated engine than the 01 series , which required more maintenance due to the design , they were no longer manufactured. From 1937 to 1942, the vehicles in the Meiningen RAW were gradually converted to two-cylinder engines and assigned to the 01 series with the company numbers 01 011 and 01 233–01 241.
The comparison operation of the locomotives of the series 01 and 02 took place in the depot in Erfurt P , Hamm (Westf) P and Hof . As early as the late 1920s, all 02 were concentrated in the Hof depot, which had experience in operating four-cylinder compound locomotives ( Bavarian S 3/6 / DR 18.4-5 and Saxon XII HV / DR 17.7). To do this, the Hof depot had to return its 01 first. Even after the conversion, the locomotives stayed in Hof, so that they all came to the Deutsche Bundesbahn (DB) after the war. The last former 02 - 01 234, converted from 02 003 - was taken out of service in Hof on May 8, 1972.
The vehicles were used as an interim solution. T. (?) Was delivered with a tender of the type 2'2 T 30. Later they were all equipped with a type 2'2 T 32 tender.
Locomotive list
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literature
- Manfred Weisbrod, Wolfgang Petznick: Series 01 . 3. Edition. Transpress, Berlin 1993, ISBN 3-344-70769-8 .
- Large locomotive portrait 01.5 - EK topics 19 . EK-Verlag, Freiburg 1995.
- Konrad Koschinski: Legendary class 01 - Eisenbahn-Journal special edition 2 . Publishing group Bahn, 2006, ISBN 3-89610-156-0 .
- Weisbrod / Müller / Petznick: Railway vehicle archive, steam locomotives of German railways, series 01–39 . 3. Edition. Alba (Transpress), Düsseldorf (Berlin) 1978, ISBN 3-87094-081-6 .
- German railways . Weltbild Verlag, Augsburg 1995, ISBN 3-89350-819-8 .
- EK 12/1982; P. 9
Web links
- Photos of the 02 003 locomotive
- Photo in the image archive of the Railway Foundation: 01 235 (former 02 010)