DRG Class 04

DRG Class 04/02.1
Number(s) DRG 02 101–102
Quantity 2
Manufacturer Krupp
Year(s) of manufacture 1932
Retired 1939
Wheel arrangement 4-6-2
Axle arrangement 2'C1'
Type S 36.18
Track gauge 1,435 mm (4 ft 8 12 in)
Length over buffers 23,905 mm (78 ft 5 in)
Service weight 106.3 t (104.6 long tons; 117.2 short tons)
Adhesive weight 59.5 t (58.6 long tons; 65.6 short tons)
Top speed 140 km/h (87 mph)
Indicated Power 1,545–1,706 kW (2,072–2,288 hp) (depending on build state)
Driving wheel diameter 2,000 mm (78.74 in)
Leading wheel diameter 1,000 mm (39.37 in)
Trailing wheel diameter 1,250 mm (49.21 in)
No. of cylinders 4
Cylinder bore 2×350 mm (13.78 in)/520 mm (20.47 in)
Piston stroke 660 mm (25.98 in)
Boiler Overpressure 25 bar (2,500 kPa; 360 psi)
Grate area 4.10 m2 (44.1 sq ft)
Tube heating area 84.60 m2 (910.6 sq ft)
Superheater area 206.80 m2 (2,226.0 sq ft)
Tender 2'2 T 32
Water capacity 32.0 m3 (1,130 cu ft)

The two German Class 04 steam locomotives were experimental engines with the Deutsche Reichsbahn, that were derived from the Class 03 standard locomotives (Einheitsloks).

History

In 1932 the Deutsche Reichsbahn tried to raise boiler overpressures from 156.9 to 245.1 N/cm2 (227.6 to 355.5 psi) by using high-tensile steel. These vehicles, built by the firm of Krupp, soon showed signs of damage on the firebox however. Because the engines did not meet expectations even after modification and repairs, in 1935 the pressure was reduced to 156.9 N/cm2 (227.6 psi) again and they were given operating numbers 02 101 and 02 102. Due to a lack of water the boiler on 02 101 exploded on 3 April 1939; after that both engines were retired and eventually scrapped in 1940.

The engines were equipped with a 2'2' T 32 standard tender.

See also

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.