DRG Class 87

Specifications
Specifications
Configuration:;
• Whyte	0-10-0T
• UIC	E h2t
• German	Gt 55.17
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	1,100 mm (3 ft 7+1⁄4 in)
Wheelbase:
• Axle spacing; (Asymmetrical)	1,400 mm (4 ft 7+1⁄8 in) +; 1,800 mm (5 ft 10+7⁄8 in) +; 1,600 mm (5 ft 3 in) +; 1,400 mm (4 ft 7+1⁄8 in) =;
• Engine	6,200 mm (20 ft 4+1⁄8 in)
Length:;
• Over headstocks	12,000 mm (39 ft 4+1⁄2 in)
• Over buffers	13,300 mm (43 ft 7+5⁄8 in)
Height	4,165 mm (13 ft 8 in)
Axle load	17.1 t (16.8 long tons; 18.8 short tons)
Adhesive weight	85.6 t (84.2 long tons; 94.4 short tons)
Empty weight	68.0 t (66.9 long tons; 75.0 short tons)
Service weight	85.6 t (84.2 long tons; 94.4 short tons)
Fuel type	Coal
Fuel capacity	3.0 t (3.0 long tons; 3.3 short tons)
Water cap.	9 m3 (1,980 imp gal; 2,380 US gal)
Firebox:
• Grate area	2.34 m2 (25.2 sq ft)
Boiler:;
• Pitch	2,700 mm (8 ft 10+1⁄4 in)
• Tube plates	4,500 mm (14 ft 9+1⁄8 in)
• Small tubes	44.5 mm (1+3⁄4 in), 110 off
• Large tubes	133 mm (5+1⁄4 in), 26 off
Boiler pressure	14 bar (14.3 kgf/cm2; 203 psi)
Heating surface:
• Firebox	10.0 m2 (108 sq ft)
• Tubes	61.4 m2 (661 sq ft)
• Flues	45.9 m2 (494 sq ft)
• Total surface	117.3 m2 (1,263 sq ft)
Superheater:;
• Heating area	47.0 m2 (506 sq ft)
Cylinders	Two, outside
Cylinder size	600 mm × 550 mm (23+5⁄8 in × 21+5⁄8 in)

Type and origin
Type and origin
Power type	Steam
Builder	Orenstein & Koppel
Serial number	11231–11238, 11411–11415, 11551–11553
Build date	1927–1928
Total produced	16

DRG Class 87
DRG Class 87
	87 008
Power type
Type and origin
Power type	Steam
Builder	Orenstein & Koppel
Serial number	11231–11238, 11411–11415, 11551–11553
Build date	1927–1928
Total produced	16
Configuration:;
Specifications
Configuration:;
• Whyte	0-10-0T
• UIC	E h2t
• German	Gt 55.17
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	1,100 mm (3 ft 7+1⁄4 in)
Wheelbase:
• Axle spacing; (Asymmetrical)	1,400 mm (4 ft 7+1⁄8 in) +; 1,800 mm (5 ft 10+7⁄8 in) +; 1,600 mm (5 ft 3 in) +; 1,400 mm (4 ft 7+1⁄8 in) =;
• Engine	6,200 mm (20 ft 4+1⁄8 in)
Length:;
• Over headstocks	12,000 mm (39 ft 4+1⁄2 in)
• Over buffers	13,300 mm (43 ft 7+5⁄8 in)
Height	4,165 mm (13 ft 8 in)
Axle load	17.1 t (16.8 long tons; 18.8 short tons)
Adhesive weight	85.6 t (84.2 long tons; 94.4 short tons)
Empty weight	68.0 t (66.9 long tons; 75.0 short tons)
Service weight	85.6 t (84.2 long tons; 94.4 short tons)
Fuel type	Coal
Fuel capacity	3.0 t (3.0 long tons; 3.3 short tons)
Water cap.	9 m3 (1,980 imp gal; 2,380 US gal)
Firebox:
• Grate area	2.34 m2 (25.2 sq ft)
Boiler:;
• Pitch	2,700 mm (8 ft 10+1⁄4 in)
• Tube plates	4,500 mm (14 ft 9+1⁄8 in)
• Small tubes	44.5 mm (1+3⁄4 in), 110 off
• Large tubes	133 mm (5+1⁄4 in), 26 off
Boiler pressure	14 bar (14.3 kgf/cm2; 203 psi)
Heating surface:
• Firebox	10.0 m2 (108 sq ft)
• Tubes	61.4 m2 (661 sq ft)
• Flues	45.9 m2 (494 sq ft)
• Total surface	117.3 m2 (1,263 sq ft)
Superheater:;
• Heating area	47.0 m2 (506 sq ft)
Cylinders	Two, outside
Cylinder size	600 mm × 550 mm (23+5⁄8 in × 21+5⁄8 in)
Maximum speed
Performance figures
Maximum speed	45 km/h (28 mph)
Indicated power	940 PS (691 kW; 927 hp)
Operators
Career
Operators	Deutsche Reichsbahn; → Deutsche Bundesbahn;
Numbers	87 001 – 87 016
Retired	1951–1956

The German Class 87 was a standard (see Einheitsdampflokomotive) goods train tank locomotive with the Deutsche Reichsbahn-Gesellschaft (DRG). It was specifically designed by the firm of Orenstein & Koppel for use in Hamburg Harbour. The harbour lines had minimal curve radii of only 100 metres (330 ft) and high train loads to be moved. The axle load had to be no more than 17.5 tonnes (17.2 long tons; 19.3 short tons). These requirements resulted in an axle count of five axles. In order to keep wear and tear on the running gear within acceptable limits only the middle three wheelsets were linked by coupling rods, the two Luttermöller outside axles were driven by cogs.

Due to damage the vehicles were partly also operated as 1′D, D1′ or 1′C1′ engines.

From 1951 they were superseded by DB Class 82 locomotives.

References

Hütter, Ingo (2021). Die Dampflokomotiven der Baureihen 60 bis 91 der DRG, DRB, DB, und DR (in German). Werl: DGEG Medien. pp. 292–294. ISBN 978-3-946594-21-5.
Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1978). Dampflokomotiven deutscher Eisenbahnen, Baureihe 60–96 (EFA 1.3) (in German) (4th ed.). Düsseldorf: Alba. pp. 121–123. ISBN 3-87094-083-2.