DRG Class 86

DRG Class 86
ÖBB 86
PKP Tkt3
ČSD 455.2
86 001 in Chemnitz-Hilbersdorf
Type and origin
Power typeSteam
Builder
Build date1928–1943
Total produced776
Specifications
Configuration:
 • Whyte2-8-2T
 • UIC1′D1′ h2t
 • GermanGt 46.15
Gauge1,435 mm (4 ft 8+12 in)
Leading dia.0,850 mm (2 ft 9+12 in)
Driver dia.1,400 mm (4 ft 7+18 in)
Trailing dia.0,850 mm (2 ft 9+12 in)
Minimum curve140 m (460 ft)
Wheelbase:
 • Axle spacing
(Asymmetrical)
  • 2,600 mm (8 ft 6+38 in) +
  • 1,700 mm (5 ft 6+78 in) +
  • 1,700 mm (5 ft 6+78 in) +
  • 1,700 mm (5 ft 6+78 in) +
  • 2,600 mm (8 ft 6+38 in) =
 • Engine10,300 mm (33 ft 9+12 in)
Length:
 • Over headstocks
  • 001–229: 12,520 mm (41 ft 78 in)
  • 230–966: 12,620 mm (41 ft 4+78 in)
 • Over buffers
  • 001–229: 13,820 mm (45 ft 4+18 in)
  • 230–966: 13,920 mm (45 ft 8 in)
Height4,165 mm (13 ft 8 in)
Axle load14.9–15.2 t (14.7–15.0 long tons; 16.4–16.8 short tons)
Adhesive weight59.4–60.6 t (58.5–59.6 long tons; 65.5–66.8 short tons)
Empty weight68.0–70.0 t (66.9–68.9 long tons; 75.0–77.2 short tons)
Service weight83.0–88.5 t (81.7–87.1 long tons; 91.5–97.6 short tons)
Fuel typeCoal
Fuel capacity4.0 t (3.9 long tons; 4.4 short tons)
Water cap.9.0 m3 (1,980 imp gal; 2,380 US gal)
Firebox:
 • Grate area2.34–2.39 m2 (25.2–25.7 sq ft)
Boiler:
 • Pitch2,700 mm (8 ft 10+14 in)
 • Tube plates4,500 mm (14 ft 9+18 in)
 • Small tubes44.5 mm (1+34 in), 110 off
 • Large tubes133 mm (5+14 in), 26 off
Boiler pressure14 kgf/cm2 (13.7 bar; 199 psi)
Heating surface:
 • Firebox10.0 m2 (108 sq ft)
 • Tubes61.4 m2 (661 sq ft)
 • Flues45.9 m2 (494 sq ft)
 • Total surface117.3 m2 (1,263 sq ft)
Superheater:
 • Heating area47.0 m2 (506 sq ft)
CylindersTwo, outside
Cylinder size570 mm × 660 mm (22+716 in × 26 in)
Valve gearHeusinger (Walschaerts)
Loco brakeKnorr single-chamber, compressed-air brake with auxiliary brake
Parking brakeExter counterweight brake
Performance figures
Maximum speed
  • 001–233: 70 km/h (43 mph)
  • 234–966: 80 km/h (50 mph)
Indicated power1,030 PS (758 kW; 1,020 hp)
Career
OperatorsDeutsche Reichsbahn
Numbers
  • 86 001 – 86 591
  • 86 606 – 86 627
  • 86 698 – 86 816
  • 86 835 – 86 875
  • 86 966
  • Bentheimer Eisenbahn 41 (was 86 817)
  • Eutin-Lübecker Eisenbahn 15 (3rd) [1942 to DR 86 1000]
Retired1945–1972

The DRG Class 86 was a standard (see Einheitsdampflokomotive) goods train tank locomotive with the Deutsche Reichsbahn-Gesellschaft. It was intended for duties on branch lines and was delivered by almost all the locomotive building firms working for the Reichsbahn. From 1942 it was built in a simplified version as a 'transitional war locomotive' (Übergangskriegslokomotive or ÜK). The most obvious changes were the omission of the second side windows in the cab and the solid disc carrying wheels.