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Mecklenburg VI Mecklenburg P 3.1 DRG Class 34.73
Prussian P 3.1 No. 323 of the Magdeburg Division
Type and origin Builder Henschel & Sohn Linke-Hofmann Werke Build date 1888–1907 Total produced 41
Specifications Configuration: ​  • Whyte 2-4-0 Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 1,150 mm (3 ft 9+1⁄4 in) Driver dia. 1,750 mm (5 ft 9 in) Length: ​  • Over beams 14,793 mm (48 ft 6+1⁄2 in) Axle load 12.35 tonnes (12.15 long tons; 13.61 short tons) Adhesive weight 24.70 tonnes (24.31 long tons; 27.23 short tons) Service weight 36.52 tonnes (35.94 long tons; 40.26 short tons) Boiler pressure 12 kgf/cm (1,180 kPa; 171 lbf/in) Heating surface: ​  • Firebox 1.87 m (20.1 sq ft)  • Evaporative 96.43 m (1,038.0 sq ft) Cylinder size 400 mm (15+3⁄4 in) Piston stroke 560 mm (22+1⁄16 in)
Performance figures Maximum speed 90 km/h (56 mph)
Career Numbers MFFE: 101–141 DRG: 34 7301 – 34 7308, 34 7351 – 34 7364

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.

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.

See also

• Grand Duchy of Mecklenburg Friedrich-Franz Railway
• List of Mecklenburg locomotives

References

• Pierson, Kurt (1981). Die Preußischen Dampflokomotiven 1850–1922 (in German). Stuttgart: Motorbuch Verlag. ISBN 3-87943-813-7.
• 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.
• Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1976). Dampflokomotiven deutscher Eisenbahnen, Baureihe 01–39 (EFA 1.1) (in German) (3rd ed.). Düsseldorf: Alba Buchverlag. pp. 191–192. ISBN 3-87094-081-6.

v t e Classes of Mecklenburg locomotives
Early locomotives	Mecklenburg I Mecklenburg II Niclot Wodan and Thor
Passenger train locomotives	Mecklenburg III Mecklenburg IV Mecklenburg P 2 Mecklenburg P 3.1 Mecklenburg P 3 Mecklenburg P 4.1 Mecklenburg P 4.2 Mecklenburg P 8
Goods train locomotives	Mecklenburg G 2 Mecklenburg G 3 Mecklenburg G 4.2 Mecklenburg G 5.2 Mecklenburg G 5.4 Mecklenburg G 7.2 Mecklenburg G 7.3 Mecklenburg G 8.1
Tank locomotives	Mecklenburg XI Mecklenburg XII Mecklenburg XIII Mecklenburg XIV Mecklenburg T 3a Mecklenburg T 3b Mecklenburg T 4 Mecklenburg T 9.2 Mecklenburg T 9.3
Narrow gauge locomotives	Mecklenburg XVIII Mecklenburg XIX Mecklenburg T 7 (Mecklenburg T 42)
Grand Duchy of Mecklenburg Friedrich-Franz Railway

• 2-4-0 locomotives
• Grand Duchy of Mecklenburg Friedrich-Franz Railway locomotives
• Standard gauge locomotives of Germany
• Railway locomotives introduced in 1888
• 1B n2 locomotives
• Passenger locomotives