DRG Class 85

Specifications
Specifications
Configuration:;
• Whyte	2-10-2T
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	850 mm (2 ft 9+1⁄2 in)
Driver dia.	1,400 mm (4 ft 7+1⁄8 in)
Trailing dia.	850 mm (2 ft 9+1⁄2 in)
Length:;
• Over beams	16,300 mm (53 ft 5+3⁄4 in)
Width	3,050 mm (10 ft 1⁄16 in)
Height	4,550 mm (14 ft 11+1⁄8 in)
Axle load	20.1 tonnes (19.8 long tons; 22.2 short tons)
Adhesive weight	99.7 tonnes (98.1 long tons; 109.9 short tons)
Empty weight	107.5 tonnes (105.8 long tons; 118.5 short tons)
Service weight	133.6 tonnes (131.5 long tons; 147.3 short tons)
Fuel capacity	Coal: 4.5 tonnes (4.4 long tons; 5.0 short tons)
Water cap.	14 m3 (490 cu ft) or 14,000 litres (3,100 imp gal; 3,700 US gal)
Boiler:;
No. of heating tubes	155
No. of smoke tubes	41
Heating tube length	4,700 mm (15 ft 5 in)
Boiler pressure	14 bar (1.4 MPa; 200 psi)
Heating surface:
• Tubes	180.31 m2 (1,940.8 sq ft)
• Firebox	3.55 m2 (38.2 sq ft)
• Radiative	15 m2 (160 sq ft)
• Evaporative	195.31 m2 (2,102.3 sq ft)
Superheater:;
• Heating area	72.50 m2 (780.4 sq ft)
Cylinders	3
Cylinder size	600 mm (23+5⁄8 in)
Piston stroke	660 mm (26 in)

DRG Class 85
DRG Class 85
Builder
Type and origin
Builder	Henschel & Sohn
Build date	1932–1933
Total produced	10
Configuration:;
Specifications
Configuration:;
• Whyte	2-10-2T
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	850 mm (2 ft 9+1⁄2 in)
Driver dia.	1,400 mm (4 ft 7+1⁄8 in)
Trailing dia.	850 mm (2 ft 9+1⁄2 in)
Length:;
• Over beams	16,300 mm (53 ft 5+3⁄4 in)
Width	3,050 mm (10 ft 1⁄16 in)
Height	4,550 mm (14 ft 11+1⁄8 in)
Axle load	20.1 tonnes (19.8 long tons; 22.2 short tons)
Adhesive weight	99.7 tonnes (98.1 long tons; 109.9 short tons)
Empty weight	107.5 tonnes (105.8 long tons; 118.5 short tons)
Service weight	133.6 tonnes (131.5 long tons; 147.3 short tons)
Fuel capacity	Coal: 4.5 tonnes (4.4 long tons; 5.0 short tons)
Water cap.	14 m3 (490 cu ft) or 14,000 litres (3,100 imp gal; 3,700 US gal)
Boiler:;
No. of heating tubes	155
No. of smoke tubes	41
Heating tube length	4,700 mm (15 ft 5 in)
Boiler pressure	14 bar (1.4 MPa; 200 psi)
Heating surface:
• Tubes	180.31 m2 (1,940.8 sq ft)
• Firebox	3.55 m2 (38.2 sq ft)
• Radiative	15 m2 (160 sq ft)
• Evaporative	195.31 m2 (2,102.3 sq ft)
Superheater:;
• Heating area	72.50 m2 (780.4 sq ft)
Cylinders	3
Cylinder size	600 mm (23+5⁄8 in)
Piston stroke	660 mm (26 in)
Maximum speed
Performance figures
Maximum speed	80 km/h (50 mph)
Indicated power	1,103 kW (1,500 PS; 1,480 hp)
Tractive effort:;
• Starting	280 kN (62,900 lbf)
Numbers
Career
Numbers	DRG 85 001 – 85 010
Retired	1961

The Class 85 was a German goods train tank engine and standard locomotive (Einheitslok) with the Deutsche Reichsbahn.

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