DB Class 66

DB Class 66

Locomotive 66 002 in Bochum-Dahlhausen
Number(s) DB 66 001–002
Quantity 2
Manufacturer Henschel
Year(s) of manufacture 1955
Retired 1968
Wheel arrangement 2-6-4
Axle arrangement 1'C2'
Track gauge 1,435 mm (4 ft 8 1⁄2 in)
Length over buffers 14,750 mm (581 in)
Service weight 93.4 t (91.9 long tons; 103.0 short tons)
Adhesive weight 47.1 t (46.4 long tons; 51.9 short tons)
Axle load 15.8 t (15.6 long tons; 17.4 short tons)
Top speed 100 km/h (62 mph)
Indicated Power 861 kW (1,155 hp)
Driving wheel diameter 1,600 mm (63 in)
Leading wheel diameter 1,000 mm (39 in)
Trailing wheel diameter 850 mm (33 in)
Cylinder bore 470 mm (19 in)
Piston stroke 660 mm (26 in)
Boiler Overpressure 16 bar (1,600 kPa)
Grate area 1.96 m2 (21.1 sq ft)
Superheater area 45.13 m2 (485.8 sq ft)
Evaporative heating area 87.46 m2 (941.4 sq ft)

The DB Class 66 (German: Baureihe 66) was a class of two Deutsche Bundesbahn (DB) locomotives designed for fast goods train and passenger train services on the main and branch lines of Deutsche Bundesbahn (DB), the national railway of the former West Germany.

History

The Class 66 were one of several newly designed locomotive classes, the so-called Neubauloks, built for the DB after the Second World War. The 66s had a top speed of 100 km/h and an axle load of only 15 tonnes which made them ideally suited to such duties. They were intended to replace the former state railway (Länderbahn) locomotives of DRG classes 38.10 (ex-Prussian P 8), 78 (ex-Prussian T 18) and 93 (ex-Prussian T 14). However increasing competition from diesel locomotives meant that no more engines were built after the two prototype, even though they fully met all expectations and were a very successful design. The Class 66 was the penultimate locomotive class to be built as part of the DB's Neubaulok construction programme.

Design

The engines were equipped with a welded, high-performance boiler with a combustion chamber, roller bearings, a mixer preheater and a welded plate frame. Because great emphasis was placed on the working conditions for the engine driver and stoker, the Class 66 had a fully enclosed driver's cab, skylights, floor heating and upholstered seats with back rests. From autumn 1967 both engines were fitted equipment for working push-pull services.

Locomotive number 66 001 was retired in 1967 due to damage to its drive, and stored at Gießen; the second engine was retired in 1968.

Preserved

DB 66 002 at the Bochum-Dahlhausen Railway Museum (1982)

Locomotive 66 002 was bought after its retirement by the German Railway History Company (Deutsche Gesellschaft für Eisenbahngeschichte or DGEG) and is currently (2007) homed in Bochum-Dahlhausen Railway Museum.

Literature

See also

Media related to DB Class 66 at Wikimedia Commons

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