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
No. 5712 Kigezi with a freight train at Mombasa, Kenya, in 1969
Type and origin Power type Steam Designer Beyer, Peacock & Co. K.C. Strahan H.B. Stoyle Builder Beyer, Peacock & Co. Serial number 6905–6910, 6970–6975 Build date 1939, 1940 Total produced 12
Specifications Configuration: ​  • Whyte 4-8-4+4-8-4 (Garratt)  • UIC (2′D2′)(2′D2′) h4 Gauge 1,000 mm (3 ft 3+3⁄8 in) Driver dia. 4 ft 6 in (1,372 mm) Width 9 ft 6 in (2,900 mm) Height 12 ft 5.5 in (3.797 m) Adhesive weight 97 long tons (99 t) Loco weight 186.2 long tons (189.2 t) Fuel type Coal Fuel capacity 12 long tons (12 t) Water cap. 6,000 imp gal (27,000 L; 7,200 US gal) Firebox: ​  • Grate area 48.5 sq ft (4.51 m2) Boiler pressure 220 psi (1.52 MPa) (225 psi (1.55 MPa)) Heating surface: ​  • Firebox 169 sq ft (15.7 m2)  • Tubes   1,963 sq ft (182.4 m2)  • Total surface 2,561 sq ft (237.9 m2) Superheater: ​  • Type Inside  • Heating area 429 sq ft (39.9 m2) Cylinders 4 (Garratt) Cylinder size 16 in × 26 in (406 mm × 660 mm) Valve gear Walschaerts Valve type Trunk type Valve travel 5 in (130 mm) Loco brake Westinghouse type Train brakes Westinghouse type Safety systems 3 Ross muffled pop valves
Performance figures Tractive effort 47,200 lbf (209.96 kN)
Career Operators Kenya-Uganda Railway (KUR) → East African Railways (EAR) Class KUR: EC3 class EAR: 57 class Number in class 12 Numbers KUR: 77–88 EAR: 5701–5712 First run 1939 Withdrawn 1967 Preserved KUR 87 (EAR 5711) Disposition One preserved, remainder scrapped

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

KUR 87 Karamoja at Nairobi Railway Museum, 2012

See also

• Rail transport in Kenya
• Rail transport in Uganda