TR DL class

The TR DL class, later known as the EAR 23 class, was a class of 1,000 mm (3 ft 3 3⁄8 in) gauge 4-8-0 steam locomotives derived from the Nigerian Railways Emir class. The six members of the DL/23 class were built by Beyer, Peacock & Co. in Gorton, Manchester, England, for the Tanganyika Railway (TR). They entered service on the TR in 1923, and were later operated by the TR's successor, the East African Railways (EAR).[2]

Tanganyika Railway DL class
East African Railways 23 class
TR 301 at Nairobi Railway Museum, 2010
Type and origin
Power typeSteam
BuilderBeyer, Peacock & Co.
Serial number6128–6133
Build date1923
Total produced6
Specifications
Configuration:
​
 • Whyte4-8-0
 • UIC2′D1' h2
Gauge1,000 mm (3 ft 3 3⁄8 in)
Driver dia.43 in (1,092 mm)
Adhesive weight37.7 long tons (38.3 t)
Loco weight49.8 long tons (50.6 t)
Fuel typeOil
Fuel capacity2,019 imp gal (9,180 l; 2,425 US gal)
Water cap2,500 imp gal (11,000 l; 3,000 US gal)
Firebox:
 • Firegrate area		18.3 sq ft (1.70 m2)
Boiler pressure160 psi (1.10 MPa) (165 psi (1.14 MPa))
Heating surface1,323 sq ft (122.9 m2)
 • Tubes 
945 sq ft (87.8 m2)
 • Firebox129 sq ft (12.0 m2)
Superheater:
​
 • Heating area249 sq ft (23.1 m2)
Cylinders2
Cylinder size18 in × 23 in (457 mm × 584 mm)
Performance figures
Tractive effort24,300 lbf (108.09 kN)
Career
Operators
  • Tanganyika Railway (TR)
  • → East African Railways (EAR)
Class
  • TR: DL class
  • EAR: 23 class
Number in class6
Numbers
  • TR: 200–205/300–305
  • EAR: 2301–2306
Delivered1923
[1]

Class list

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

Builder's
number		 1st TR
number		 2nd TR
number		 EAR
number		 Notes
6128 200 300 2301
6129 201 301 2302 Preserved at Nairobi Railway Museum as a static exhibit (and as TR 301)
6130 202 302 2303
6131 203 303 2304
6132 204 304 2305
6133 203 303 2306
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See also

References

Notes
  1. Ramaer 1974, pp. 55–56, 62, 84, 87.
  2. Ramaer 1974, pp. 55–56, 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.
  • Staff writer (August 1957). "The "23" Class Locomotives" (PDF). East African Railways and Harbours Magazine. East African Railways and Harbours. 3 (4): 128. Retrieved 9 December 2014.CS1 maint: ref=harv (link)

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