Mecklenburg P 4.2

Mecklenburg P 4.2 DRG Class 36.6
Type and origin Build date 1903–1912 Total produced 31
Specifications Configuration: ​  • Whyte 4-4-0 Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 1,000 mm (3 ft 3 in) Driver dia. 1,750 mm (5 ft 9 in) Length: ​  • Over buffers 17,645 mm (57 ft 10.7 in) Axle load 14.9 t Adhesive weight 19.6 t Service weight 50.4 t Tender type pr 3 T 12/ pr 2'2' T 16 Water cap. 12.0 m3 (2,600 imp gal)/16.0 m3 (3,500 imp gal) Firebox: ​  • Grate area 2.31 m2 (24.9 sq ft) Heating surface 118.85 m2 (1,279.3 sq ft) Cylinders 2 Cylinder size 460 mm (18 in)/680 mm (27 in) Piston stroke 600 mm (24 in)
Performance figures Maximum speed 90 km/h (56 mph) Indicated power 427 kW
Career Numbers DRG 36 602 - 620, 651 - 662 Retired 1931

The Mecklenburg Class P 4.2, formerly Class VII, were early German steam locomotives operated by the Grand Duchy of Mecklenburg Friedrich-Franz Railway and were used specifically for hauling express trains on the line from Warnemünde to Berlin. They were mechanically identical with the Prussian P 4.2. All 31 units were taken over by the Deutsche Reichsbahn who incorporated them as Class 36.6 with numbers 36 602–620 and 651–662. The first series of numbers were engines with a 14 t axle load, the second those with a 15 t axle load. In 1931 the last locomotive of this class was retired.

No. 36 601 was a Prussian P 4.2 that was redeployed to Mecklenburg in 1920.

Apart from three units, these engines were equipped with Class 2'2' T 16 tenders.

Sources

• Spielhoff, Lothar (1990). Länderbahn-Dampf-Lokomotiven. Band 1: Preußen, Mecklenburg, Oldenburg, Sachsen und Elsaß-Lothringen (in German). Stuttgart: Franckh'sche Verlagshandlung. ISBN 3-440-06145-0.