East African Railways 31 class Type and origin Power type Steam Builder Vulcan Foundry Serial number 6228–6273 Build date 1955 Total produced 46 
Specifications Configuration:   • Whyte  2-8-4  • UIC  1′D2' h2 Gauge 1,000 mm 3 ft 3+ 3 ⁄8   in )Driver  dia.48 in (1,219 mm) Adhesive weight 45 long tons (46 t) Loco weight 70.2 long tons (71.3 t) Fuel type Oil Fuel capacity 1,667 imp gal (7,580 L; 2,002 US gal) Water cap. 4,108 imp gal (18,680 L; 4,934 US gal) Firebox:   • Grate area 30 sq ft (2.79 m2 ) Boiler pressure 200 psi (1.38 MPa) Heating surface:   • Firebox 124 sq ft (11.5 m2 )  • Tubes 1,511 sq ft (140.4 m2 )  • Total surface 1,963 sq ft (182.4 m2 ) Superheater:   • Type Inside  • Heating area 328 sq ft (30.5 m2 ) Cylinders 2 Cylinder size 17 in × 26 in (432 mm × 660 mm) Valve gear Walschaerts Loco brake Westinghouse type Train brakes Westinghouse type 
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The EAR 31 class  was a class of oil-burning 1,000 mm 3 ft 3+ 3 ⁄8   in ) gauge 2-8-4 steam locomotives . The 46 members of the class were built in 1955 by Vulcan Foundry , in Newton-le-Willows , Lancashire  (now part of Merseyside ), England, for the East African Railways  (EAR).  They were a lighter, branch-line version of the EAR 30 class, and worked from various sheds throughout the EAR system.
Class list 
The numbers and names of each member of the class were as follows:
3101 at its naming ceremony 
See also 
References 
Notes 
Bibliography 
Durrant, A E; Lewis, C P; Jorgensen, A A (1981). Steam in Africa . London: Hamlyn . ISBN  978-0-600-34946-4 . OCLC  9014344 . OL  15088099M . Wikidata  Q111363476 . 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 , Wikidata  Q111363477  Ramaer, Roel (1974). Steam Locomotives of the East African Railways . David & Charles Locomotive Studies. Newton Abbot, North Pomfret: David & Charles . ISBN  978-0-7153-6437-6 . OCLC  832692810 . OL  5110018M . Wikidata  Q111363478 . Ramaer, Roel (2009). Gari la Moshi: Steam Locomotives of the East African Railways . Malmö: Stenvalls. ISBN  978-91-7266-172-1 . OCLC  502034710 . Wikidata  Q111363479 . Staff writer (October 1955). " . East African Railways and Harbours Magazine . 2  (5). East African Railways and Harbours : 164. Archived from the original  on 24 September 2015. Retrieved 8 December  2014 .