KUR EC3 class

The KUR EC3 class, later known as the EAR 57 class, was a class of 1,000 mm (3 ft 3 3⁄8 in) gauge 4-8-4+4-8-4 Garratt-type articulated steam locomotives. The twelve members of the class were built by Beyer, Peacock & Co. in Manchester, England, for the Kenya-Uganda Railway (KUR). They entered service between 1939 and 1941, and were later operated by the KUR's successor, the East African Railways (EAR).[1]

  • Kenya-Uganda Railway EC3 class
  • East African Railways 57 class
KUR 87 Karamoja at Nairobi Railway Museum, 2012
Type and origin
Power typeSteam
Designer
BuilderBeyer, Peacock & Co.
Serial number6905–6910, 6970–6975
Build date1939, 1940
Total produced12
Specifications
Configuration:
​
 • Whyte4-8-4+4-8-4 (Garratt)
 • UIC(2′D2′)(2′D2′) h4
Gauge1,000 mm (3 ft 3 3⁄8 in)
Driver dia.54 in (1,372 mm)
Width114 in (2,900 mm)
Height149.5 in (3,800 mm)
Adhesive weight97 long tons (99 t)
Loco weight186.2 long tons (189.2 t)
Fuel typeCoal
Fuel capacity12 long tons (12 t)
Water cap6,000 imp gal (27,000 l; 7,200 US gal)
Firebox:
 • Firegrate area		48.5 sq ft (4.51 m2)
Boiler pressure
  • 220 psi (1.52 MPa)
  • (225 psi (1.55 MPa))
Heating surface2,561 sq ft (237.9 m2)
 • Tubes 
1,963 sq ft (182.4 m2)
 • Firebox169 sq ft (15.7 m2)
Superheater:
​
 • TypeInside
 • Heating area429 sq ft (39.9 m2)
Cylinders4 (Garratt)
Cylinder size16 in × 26 in (406 mm × 660 mm)
Valve gearWalschaerts
Valve typeTrunk type
Valve travel5 in (130 mm)
Loco brakeWestinghouse type
Train brakesWestinghouse type
Safety systems3 Ross muffled pop valves
Performance figures
Tractive effort47,200 lbf (209.96 kN)
Career
Operators
Class
  • KUR: EC3 class
  • EAR: 57 class
Number in class12
Numbers
  • KUR: 77–88
  • EAR: 5701–5712
First run1939
Withdrawn1967
PreservedKUR 87 (EAR 5711)
Disposition10 scrapped, one preserved

Class list

The numbers, build dates and names of each member of the class were as follows:[2]

Builder's
number		 Built KUR
number		 EAR
number		 Name Notes
6905 1939 77 5701 Mengo
6906 1939 78 5702 Teso
6907 1939 79 5703 Uasingishu
6908 1939 80 5704 Narok
6909 1939 81 5705 Marakwet
6910 1939 82 5706 Wajir
6970 1940 83 5707 Chua
6971 1940 84 5708 Gulu
6972 1940 85 5709 Lango
6973 1940 86 5710 Budama
6974 1940 87 5711 Karamoja Preserved at Nairobi Railway Museum, as KUR 87.
6975 1940 88 5712 Kigezi

See also

References

Notes
  1. Ramaer 1974, pp. 50–52.
  2. Durrant 1981, p. 189.

Bibliography
  • Durrant, A E (1981). Garratt Locomotives of the World (rev. and enl. ed.). Newton Abbot, Devon, UK; North Pomfret, Vt, USA: David & Charles. ISBN 0715376411.
  • Durrant, A E; Lewis, C P; Jorgensen, A A (1981). Steam in Africa. London: Hamlyn. ISBN 0600349462.
  • Patience, Kevin (1976). Steam in East Africa: a pictorial history of the railways in East Africa, 1893-1976. Nairobi: Heinemann Educational Books (E.A.) Ltd. OCLC 3781370.
  • Ramaer, Roel (1974). Steam Locomotives of the East African Railways. David & Charles Locomotive Studies. Newton Abbot, Devon, UK; North Pomfret, Vt, USA: David & Charles. ISBN 0715364375.
  • Ramaer, Roel (2009). Gari la Moshi: Steam Locomotives of the East African Railways. Malmö, Sweden: Stenvalls. ISBN 9789172661721.
  • Staff writer (21 July 1939). "4-8-4t+4-8-4 Metre-Gauge Beyer-Garratt locomotives for the Kenya & Uganda Railways" (PDF). The Railway Gazette. ISSN 0373-5346.CS1 maint: ref=harv (link)
  • Staff writer (February 1955). ""57" Class Locomotives" (PDF). East African Railways and Harbours Magazine. East African Railways and Harbours. 2 (1): 22. Retrieved 8 December 2014.CS1 maint: ref=harv (link)

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