Prussian T 20

The Series 95 is a fünffachgekuppelte tank locomotive with the wheel arrangement 1'E1 ', which was commissioned by the Deutsche Reichsbahn (DR ) from the beginning of 1923 for use on heavy freight trains on steep major railways in operation. Since the series was still being developed in the last period of the Prussian State Railway, it is also known as Prussian T 20.

History

With the development of T 20 The Prussian State Railway reached the with their animal class implemented by the Halberstadt - Blankenburg Railway thoughts of replacing the cumbersome and time-consuming cog railway operating on steep grades by particularly locate attractive friction locomotives with dynamic back-pressure brake and third brake system.

The first ten in 1922 built and delivered from early 1923 examples of the class had been pledged as T 20 Magdeburg 9201-9210. The vehicles were classified by the customer first as 77001-77010 in the operating inventory, since the series was initially 77 is provided for them. Even in the course of the same year, however, you drew them into the car numbers 95001-010. A total of 45 units were built until 1924. Areas included the railway line Sonnenberg Probstzella, the Spessart ramp, the Franconian Forest Railway, the Geislingen, the inclined plane and the Rübelandbahn, so she came to her nickname " Queen of the Mountain ".

The machines are equipped with a 100 mm thick bar frame with five cross stiffeners made ​​of cast steel and a boiler with the frame standing back boiler after Belpaire. The wheelsets form with the adjacent coupling axes Krauss- Helmholtz steering racks. The three middle Kuppelradsätze are fixed in the frame, but the flange is weakened in the third Kuppelradsatz by 15 mm. The two-cylinder steam engine drives the third Kuppelradsatz and has automatic pressure balancer for the engine idling.

This locomotive type was the strongest of the DR procured tender locomotive. She was in the plane at a speed of 50 km / h, a tensile load of 2,060 tons and carry at 2.5 percent slope at 25 km / h Speed ​​nevertheless still 430 tons. Thus they reached almost the performance of around 30 tons heavier Bavarian Malletlok Gt 2 × 4 / 4th This mastered to 25 per thousand slope at 25 km / h, a tensile load of 465 tons, but was in the conversation due to the complex engine more expensive. The very high friction load of 95.3 t allowed the waiver of rack operation up to a slope of 70 ‰, especially because the Riggenbach counter-pressure brake even on long downhill braking high loads without wear and overheating of the brake pads and tires and the associated risk decreasing brake performance ensured.

German Federal Railroad ( DB)

Of the 45 specimens of the series arrived at the German Federal Railways 14 pieces. Thus, the series was a so-called splinter genus with less than 20 locomotives and thus would have been preferable phase out. However, only three machines from which spare parts were recovered were actually retired by 1953. All locomotives were last stationed in Aschaffenburg were and have been used as sliding locomotives on the Spessart ramp. After electrification of the ramp until the end of April 1958, all the remaining eleven machines were retired. Prior to 1953, were also examples of the class on the inclined plane in use and deployed for this purpose at the Bw New Market Wirsberg.

German Reichsbahn (DR )

The other 31 locomotives of the series came to the Deutsche Reichsbahn. Of these, 1966-1972 24 Units in oil firing were rebuilt, ten pieces were also neubekesselt. As of 1970, described the oil-fired locomotives as Class 95.00 and the non- converted copies with coal as the class 95.10. The last series locomotives were on the track Sonnenberg Icefield in use until 1981 and was scrapped. 95 1016 yet then served as Heizlokomotive Bw Kamenz and 95 in 1027 as Traditionslok the DR

Locomotives received

  • 95 009 in the Railway Museum Dieringhausen than 95 0009-1 with oil firing
  • 95 016 at the German Steam Locomotive Museum in New Market Wirsberg,
  • 95 020 in the Technik Museum Speyer ( there as 95 007 signs),
  • 95 027 DB Museum, use on the Rübelandbahn by Traditionsgemeinschaft 50 3708-0 eV
  • 95 028 in the Railway Museum Bochum- Dahlhausen
Valve gear Geislinger Steige Velocity Deutsche Bundesbahn Neuenmarkt Technik-Museum Speyer List of Baden locomotives and railbuses List of Bavarian locomotives and railbuses List of Mecklenburg locomotives List of Oldenburg locomotives and railbuses
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