The TR RV class, later known as the EAR 21 class, was a class of 1,000 mm (3 ft 3+38 in) gauge steam locomotives designed and built for the Tanganyika Railway (TR) as a 4-8-2 development of the 2-8-2 TR MK class. The eight members of the RV class were built by Vulcan Foundry, in Newton-le-Willows, Lancashire (now part of Merseyside), England.

  • Tanganyika Railway RV class
  • East African Railways 21 class
East African Railways publicity photograph of TR no. 252, c. 1953
East African Railways publicity photograph of TR no. 252, c. 1953
Type and origin
Power typeSteam
BuilderVulcan Foundry
Serial number4318–4320, 4352–4353, 4426, 4447–4448
Build date1928–1930
Total produced8
Specifications
Configuration:
 • Whyte4-8-2
 • UIC2′D1' h2
Gauge1,000 mm (3 ft 3+38 in)
Driver dia.43 in (1,092 mm)
Adhesive weight39.8 long tons (40.4 t)
Loco weight59.8 long tons (60.8 t)
Fuel typeOil
Fuel capacity1,300 imp gal (5,900 L; 1,600 US gal)
Water cap.3,500 imp gal (16,000 L; 4,200 US gal)
Firebox:
 • Grate area27 sq ft (2.51 m2)
Boiler pressure160 psi (1.10 MPa) (165 psi (1.14 MPa))
Heating surface:
 • Firebox139 sq ft (12.9 m2)
 • Tubes 
1,306 sq ft (121.3 m2)
 • Total surface1,742 sq ft (161.8 m2)
Superheater:
 • Heating area297 sq ft (27.6 m2)
Cylinders2
Cylinder size18 in × 23 in (457 mm × 584 mm)
Performance figures
Tractive effort24,300 lbf (108.09 kN)
Career
Operators
Class
  • TR: RV class
  • EAR: 21 class
Number in class8
Numbers
  • TR: 250–257/500–507
  • EAR: 2101–2108
Delivered1928–1930
[1]

The "RV" class designation was short for "River", as each RV class locomotive was named after a river in the Tanganyika Territory. The class entered service on the TR between 1928 and 1930, and its members were later operated by the TR's successor, the East African Railways (EAR).[2]

Class list

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

Builder's
number
1st TR
number
2nd TR
number
EAR
number
Name Notes
4318 250 500 2101 Kalambo
4319 251 501 2102 Ruvuma
4320 252 502 2103 Rufiji
4352 253 503 2104 Pangani
4353 254 504 2105 Ruaha
4426 255 505 2106 Kagera
4447 256 506 2107 Lukuedi
4448 257 507 2108 Lupa
 
Vulcan Foundry works photo of TR 252

See also

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References

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Notes

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  1. ^ Ramaer 1974, pp. 57–59, 62, 84, 87.
  2. ^ Ramaer 1974, pp. 57–58, 62.
  3. ^ Ramaer 1974, pp. 62, 88–89.

Bibliography

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  • 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.
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