Mecklenburg P 3.1

The steam locomotives of DRG Class 34.73, formerly the Mecklenburg Class P 3.1 were passenger train locomotives operated by the Grand Duchy of Mecklenburg Friedrich-Franz Railway and were based on the Prussian P 3.1. They were sometimes used in express train services to begin with. Of the 41 examples belonging to this administration, which were built between 1888 and 1908, two originally came from the Lloyd Railway (Neustrelitz-Warnemünde). One improvement over the Mecklenburg P 2 was the braked coupled axle.

Mecklenburg VI
Mecklenburg P 3.1
DRG Class 34.73
Prussian P 3.1 No. 323 of the Magdeburg Division
Number(s)
  • MFFE: 101–141
  • DRG: 34 7301 – 34 7308, 34 7351 – 34 7364
Quantity41
Manufacturer
Year(s) of manufacture1888–1907
Wheel arrangement2-4-0
Axle arrangement1B n2
Track gauge1,435 mm (4 ft 8 12 in)
Length over buffers14,793 mm (48 ft 6 12 in)
Service weight36.52 tonnes (35.94 long tons; 40.26 short tons)
Adhesive weight24.70 tonnes (24.31 long tons; 27.23 short tons)
Axle load12.35 tonnes (12.15 long tons; 13.61 short tons)
Top speed90 km/h (56 mph)
Driving wheel diameter1,750 mm (5 ft 9 in)
Leading wheel diameter1,150 mm (3 ft 9 14 in)
Cylinder bore400 mm (15 34 in)
Piston stroke560 mm (22 116 in)
Boiler Overpressure12 kgf/cm2 (1,180 kPa; 171 lbf/in2)
Grate area1.87 m2 (20.1 sq ft)
Evaporative heating area96.43 m2 (1,038.0 sq ft)

Twenty two of these locomotives were taken over by the Deutsche Reichsbahn, where they were given the running numbers 34 7301–34 7308 and 34 7351–34 7364. These engines were exclusively vehicles from the Friedrich-Franz Railway.

The engines were equipped with Prussian tenders of Class pr 3 T 10.5.

Liesel 22-10-2010 pr. P 3.1 2No. 246

See also

Sources

  • Wagner; Bäzold; Zschech; Lüderitz (1990). Lokomotiven preußischer Eisenbahnen - Schnellzug und Personenzuglokomotiven. Eisenbahn-Fahrzeug-Archiv Band 2.3.1 (in German). Berlin: transpress. ISBN 3-87094-133-2.
  • Pierson, Kurt (1981). Die Preußischen Dampflokomotiven 1850–1922 (in German). Stuttgart: Motorbuch Verlag. ISBN 3-87943-813-7.
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