TR MK class

The TR MK class, later known as the EAR 25 class, was a class of 1,000 mm (3 ft 3 ³⁄₈ in) gauge 2-8-2 steam locomotives. The eleven members of the class were built by Vulcan Foundry, in Newton-le-Willows, Lancashire (now part of Merseyside), England, for the Tanganyika Railway (TR). They entered service on the TR in 1925–1926, and were later operated by the TR's successor, the East African Railways (EAR).[2]

Tanganyika Railway MK class East African Railways 25 class
Vulcan Foundry works photo of TR 206
Type and origin Power type Steam Builder Vulcan Foundry Serial number 3892–3896 (1925) 3942–3947 (1926) Build date 1925–1926 Total produced 11
Specifications Configuration: ​  • Whyte 2-8-2  • UIC 1′D1' h2 Gauge 1,000 mm (3 ft 3 ^3⁄8 in) Driver dia. 43 in (1,092 mm) Adhesive weight 40.1 long tons (40.7 t) Loco weight 57.7 long tons (58.6 t) Fuel type Oil Fuel capacity 1,300 imp gal (5,900 l; 1,600 US gal) Water cap 3,500 imp gal (16,000 l; 4,200 US gal) Firebox:  • Firegrate area 27 sq ft (2.51 m^2) Boiler pressure 160 psi (1.10 MPa) (165 psi (1.14 MPa)) Heating surface 1,742 sq ft (161.8 m^2)  • Tubes   1,306 sq ft (121.3 m^2)  • Firebox 139 sq ft (12.9 m^2) Superheater: ​  • Heating area 297 sq ft (27.6 m^2) Cylinders 2 Cylinder size 18 in × 23 in (457 mm × 584 mm)
Performance figures Tractive effort 24,300 lbf (108.09 kN)
Career Operators Tanganyika Railway (TR) → East African Railways (EAR) Class TR: MK class EAR: 25 class Number in class 11 Numbers TR: 206–216/400–410 EAR: 2501–2511 Delivered 1925–1926
[1]

Class list

The builder's number, build year and fleet numbers of each member of the class were as follows:[3]

Builder's number Built 1st TR number 2nd TR number EAR number Notes 3892 1925 206 400 2501 3893 1925 207 401 2502 3894 1925 208 402 2503 3895 1925 209 403 2504 3896 1925 210 404 2505 3942 1926 211 405 2506 3943 1926 212 406 2507 3944 1926 213 407 2508 3945 1926 214 408 2509 3946 1926 215 409 2510 3947 1926 216 410 2511

See also

• History of rail transport in Tanzania
• Rail transport in Kenya
• Rail transport in Uganda

References

Notes

1. Ramaer 1974, pp. 57–58, 62, 84, 87.
2. Ramaer 1974, pp. 57–58, 84.
3. Ramaer 1974, p. 62.

Bibliography

• 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.

External links

Media related to TR MK class at Wikimedia Commons