British Rail Class 42 ‘Warship’ Diesel-Hydraulic Locomotive

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British Rail Class 42 Warship

D832 Onslaught at Crowcombe Heathfield on the West Somerset Railway

• Type and origin
  • Power type Diesel-hydraulic
  • Builder British Railways’ Swindon Works
  • Build date 1958–1961
  • Total produced 38
• Specifications
  • Configuration:  UIC B’B’ |  Commonwealth B–B
  • Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge
  • Wheel diameter 3 ft 3 1⁄2 in (1.003 m)
  • Minimum curve 4.5 chains (91 m)
  • Wheelbase 48 ft 3 in (14.71 m)
  • Length 60 ft 0 in (18.29 m)
  • Width 8 ft 10 in (2.69 m)
  • Height 12 ft 0 1⁄2 in (3.670 m)
  • Loco weight 78 long tons (79.3 t; 87.4 short tons)
  • Fuel capacity 800 imp gal (3,600 l; 960 US gal)
  • Prime mover Bristol Siddeley Maybach MD650. 2 per locomotive.
  • Engine type Diesel engine (2x)
  • Displacement 64.5 L (3,940 cu in)
  • Transmission Mekydro Hydraulic
  • MU working ◆ White Diamond
  • Train heating Steam
  • Train brakes Vacuum
• Performance figures
  • Maximum speed 90 mph (145 km/h)
  • Power output Engines: Maybach engines, 1,135 hp (846 kW) at 1530 rpm x 2  (D803-29, D831-32 & D866-70), or 1,035 hp (772 kW) at 1400 rpm × 2 (D800 to  802).
  • Tractive effort Maximum: 48,200 lbf (214 kN)
• Career
  • Operators British Railways
  • Numbers D800–D832, D866–D870
  • Nicknames Warships
  • Axle load class Route availability 7 (RA 6 from 1969)
  • Retired 1968–1972
  • Preserved 821 ‘Greyhound’ | 832 ‘Onslaught’
  • Scrapped 1968–1972, 1985 (818 ‘Glory’)
  • Current owner Diesel Traction Group (821) | East Lancashire Railway (832)
  • Disposition Two preserved, remainder scrapped

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Source: Wikipedia, full page: https://en.wikipedia.org/wiki/British_Rail_Class_42

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