DRG Class 64

DRG Class 64
Number(s) DRG 64 001–520
Quantity 520
Year(s) of manufacture 1928–1940
Retired 1975
Wheel arrangement 2-6-2T
Axle arrangement 1'C1' h2t
Type Pt 35.15
Gauge 1,435 mm (4 ft 8 12 in)
Length over buffers 12,400 mm
Service weight 74.9 t (001–510)
75.2 t (511–520)
Adhesive weight 45.5 t
Axle load 15.3 t
Top speed 90 km/h
Driving wheel diameter 1,500 mm
Leading wheel diameter 850 mm
Trailing wheel diameter 850 mm
No. of cylinders 2
Cylinder bore 500 mm
Piston stroke 660 mm
Boiler Overpressure 14 bar
Grate area 2.04 m²
Superheater area 37.34 m²
Evaporative heating area 104.48 m²
Water capacity 9,0 m³
Fuel 3.0 t coal
Brakes K-GP
Locomotive brakes 64 001-383 and 422-520 Knorr automatic, single-chamber, compressed-air brakes, working on front of wheels. 64 384-421 double-sided operation.
Train heating steam

The Deutsche Reichsbahn had a standard passenger train tank engine with a wheel arrangement of 1'C1' (UIC classification) or 2-6-2 (Whyte notation) and a low axle load, which was designated in their classification system as the DRG Class 64 (Baureihe 64). The Class 64 was developed from 1926 onwards and it was built between 1928 and 1940. Many German manufacturers contributed to the series.

Construction

The boiler and elements of the driving gear were the same as those on the DRG Class 24. They had Bissel bogies, apart from ten engines which had a Krauss-Helmholtz bogie . From no. 64 368 onwards the engines were 10 cm longer than their predecessors. The Class 64 engine was given the nickname "Bubikopf" ('bob') after a fashionable ladies hairstyle of the time.

Service

After the Second World War 393 engines were still in service of which 278 went to the Deutsche Bundesbahn and 115 to the Deutsche Reichsbahn (East Germany). No. 64 311 remained in Austria after 1945 and became class 64 (Reihe 64) with the Austrian Federal Railways (Österreichische Bundesbahnen or ÖBB). Those engines left in Poland were given the classification OKl2 by the PKP. In 1968 there were still 60 machines in service with the Bundesbahn. Twenty Class 64 locomotives have been preserved, the majority in Germany.

Preserved Locomotives

No. 64 491 at Neuenmarkt in 2010
No. 64 250 at Treignes in 2011

At present there are still six operational Class 64's worldwide, three of which are based in Germany:

See also

Footnotes and references

Sources

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