DRG Class 85 explained

DRG Class 85
Bgcolor:A00
Color:FFF
Powertype:Steam
Builder:Henschel & Sohn
Serialnumber:22110–22117, 22142–22144
Builddate:1932–1933
Totalproduction:10
Uicclass:1′E1′ h3t
Drgtype:Gt 57.20
Driver:Divided: Inner cylinder to 2nd coupled axle, outer to 3rd
Leadingdiameter:850frac=8NaNfrac=8
Driverdiameter:1400frac=8NaNfrac=8
Trailingdiameter:850frac=8NaNfrac=8
Engine Total:12500frac=8NaNfrac=8
Over Headstocks:15000frac=8NaNfrac=8
Over Buffers:16300frac=8NaNfrac=8
Width:3050frac=16NaNfrac=16
Height:4550frac=16NaNfrac=16
Fueltype:Coal
Watercap:14sigfig=3NaNsigfig=3
Firearea:3.5m2
Pitch:3150frac=8NaNfrac=8
Lengthinside:4700frac=8NaNfrac=8
Smalltubediameter:50frac=16NaNfrac=16, 155 off
Largetubediameter:133frac=16NaNfrac=16, 41 off
Boilerpressure:14sigfig=3NaNsigfig=3
Fireboxarea:15m2
Tubearea:105.6m2
Fluearea:75.25m2
Totalsurface:195.85m2
Superheaterarea:72.5m2
Cylindercount:Three
Cylindersize:600x
Valvegear:Heusinger (Walschaerts)
Maxspeed:800NaN0
Indicatedpower:1500sigfig=3NaNsigfig=3
Tractiveeffort:280sigfig=3NaNsigfig=3
Operator:Deutsche Reichsbahn
Officialname:85 001 – 85 010
Retiredate:1961

The Class 85 was a German goods train tank engine and standard locomotive (Einheitslok) with the Deutsche Reichsbahn.

History

In 1931, the DRG ordered ten locomotives from the firm of Henschel that were taken into the fleet as numbers 85 001 to 85 010. The Class 85 was intended for hauling passenger and goods trains. They were however also employed as pusher locomotives on the Höllentalbahn in the Black Forest. Thanks to this engine, the Höllental Railway could do away with rack railway operations from 1933. The running gear and the superheated system were taken from the Class 44. The boiler, with a few minor alterations, was the same as that of the Class 62. All the locomotives were stabled at the Freiburg shed. Apart from number 85 004, which was lost in the Second World War, all the engines were in operation in the Black Forest until 1961, the year the route was converted from experimental electrical operations with 20 kV/50 Hz lines to the usual Deutsche Bundesbahn standard of . One engine, number 85 007, was still in service in Wuppertal until the end of the year, but they were all retired by the beginning of the next year.

Preserved locomotives

Number 85 007 belongs to the town of Freiburg im Breisgau. It is not operational, but is maintained by the Bahn-Sozialwerk-Gruppe. The engine is housed in the former locomotive shed.

References

External links