Mecklenburg P 4.2
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.
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| Mecklenburg VII Mecklenburg P 4.2 DRG Class 36.6 | |
|---|---|
| Number(s) |
|
| Quantity | 31 |
| Manufacturer | |
| Year(s) of manufacture | 1903–1912 |
| Retired | by 1931 |
| Wheel arrangement | 4-4-0 |
| Axle arrangement | 2′B n2v |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) |
| Length over buffers | 17,645 mm (57 ft 10+3⁄4 in) |
| Service weight | 50.4 tonnes (49.6 long tons; 55.6 short tons) |
| Adhesive weight | 19.6 tonnes (19.3 long tons; 21.6 short tons) |
| Axle load | 14.9 tonnes (14.7 long tons; 16.4 short tons) |
| Top speed | 90 km/h (56 mph) |
| Indicated Power | 580 PS (427 kW; 572 hp) |
| Driving wheel diameter | 1,750 mm (5 ft 9 in) |
| Leading wheel diameter | 1,000 mm (3 ft 3+1⁄4 in) |
| No. of cylinders | 2, compound |
| LP cylinder bore | 680 mm (26+3⁄4 in) |
| HP cylinder bore | 460 mm (18+1⁄8 in) |
| Piston stroke | 600 mm (23+5⁄8 in) |
| Grate area | 2.31 m2 (24.9 sq ft) |
| Evaporative heating area | 118.85 m2 (1,279.3 sq ft) |
| Tender | pr 3 T 12, or pr 2′2′ T 16 |
| Water capacity | 12.0 or 16.0 m3 (2,600 or 3,500 imp gal; 3,200 or 4,200 US gal) |
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.
| Early locomotives |
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| Passenger train locomotives |
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| Goods train locomotives |
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| Tank locomotives |
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| Narrow gauge locomotives | ||
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