British Rail Class D3/11

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British Rail Class D3/11
Type and origin
Power type Diesel-electric
Builder British RailwaysSwindon Works
Order number Swindon Lot 346
Build date 1948
Total produced 6
Specifications
Configuration 0-6-0 DE
UIC classification C
Gauge 4 ft 8 12 in (1,435 mm)
Wheel diameter 4 ft 0 12 in (1.232 m)
Minimum curve 3.5 chains (70 m)
Wheelbase 11 ft 6 in (3.51 m)
Length 29 ft 1 12 in (8.88 m)
Width 9 ft 0 in (2.74 m)
Height 12 ft 5 58 in (3.80 m)
Locomotive weight 46.45 long tons (47.20 t)
Fuel capacity 659 imp gal (3,000 l; 791 US gal)
Lubricant capacity 65 imp gal (300 l; 78 US gal)
Coolant capacity 140 imp gal (640 l; 170 US gal)
Prime mover English Electric 6KT
Generator English Electric 801B
Traction motors English Electric 506B, 2 off
Multiple working Not fitted
Performance figures
Maximum speed 20 mph (32 km/h)
Power output Engine: 350 bhp (260 kW),
At rail: 194 hp (145 kW)
Tractive effort 38,500 lbf (171.3 kN)
Train heating None
Locomotive brake Air
Train brakes None
Career
Operator(s) British Railways
Class D3/11; later 3/11
Number(s) 15101–15106
Axle load class Route availability 5
Retired 1967
Disposition All scrapped

British Rail Class D3/11 was a locomotive commissioned by the Great Western Railway, but delivered to its successor British Rail in England. It was a diesel powered locomotive in the pre-TOPS period.

Statistics[edit]

  • Great Western number range: 501 (not carried)
  • BR 1948 number range: 15101-15106
  • Former class codes: D3/11, later 3/11
  • Built by: BR Swindon
  • Years introduced: 1948
  • Wheel arrangement: 0-6-0
  • Weight: 46 long tons 9 cwt
  • Height: 12 ft 5⅝ in
  • Length: 29 ft 1½ in
  • Width: 9 ft 0 in (2.74 m)
  • Wheelbase: 11 ft 6 in (3.51 m)
  • Wheel diameter: 4 ft 0½ in
  • Min curve negotiable: 3½ chains
  • Engine type: English Electric 6KT
  • Engine output: 350 hp (260 kW)
  • Power at rail: 194 hp (145 kW)
  • Tractive effort: 33,500 lbf (149,000 N)
  • Cylinder bore: 10 in
  • Cylinder stroke: 12 in
  • Maximum speed: 20 mph (32 km/h)
  • Brake type: Air on loco, no train brakes
  • Route availability: 5
  • Heating type: Not fitted
  • Multiple coupling type: Not fitted
  • Main generator type: EE801B
  • Aux generator type: EE??
  • Traction motor type: EE506B
  • No of traction motors: 2
  • Gear ratio: 21.7:1
  • Fuel tank capacity: 659 gal
  • Cooling water capacity: 140 gal
  • Lub oil capacity: 65 gal
  • Sanding equipment: Pneumatic

References[edit]

  • Strickland, David C. (1982). Locomotive Directory, every single one there has ever been. Camberely, Surrey: Diesel & Electric Group. p. 62. ISBN 0-906375-10-X. 

See also[edit]