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The TR ML class, later known and expanded as the EAR 26 class, was a class of 1,000 mm (3 ft 3+3⁄8 in) gauge 2-8-2 steam locomotives designed for and ordered by the Tanganyika Railway (TR), as a development of the TR MK class.

  • Tanganyika Railway ML class
  • East African Railways 26 class
No. 2603 at Tabora depot, Tanzania, in 1968
Type and origin
Power typeSteam
Builder
  • W. G. Bagnall
  • Vulcan Foundry
  • Robert Stephenson and Hawthorns
Serial number
  • WGB: 2832–2837 (1947)
  • VF: 6182–6187 (1952)
  • RSH: 7444–7449 (1952)
Build date1947, 1952
Total produced12
Specifications
Configuration:
​
 • Whyte2-8-2
 • UIC1′D1' h2
Gauge1,000 mm (3 ft 3+3⁄8 in)
Driver dia.43 in (1,092 mm)
Adhesive weight39.0 long tons (39.6 t)
Loco weight51.8 long tons (52.6 t)
Fuel typeOil
Fuel capacity1,300 imp gal (5,900 l; 1,600 US gal)
Water cap.4,200 imp gal (19,000 l; 5,000 US gal)
Firebox:
 • Firegrate area		27 sq ft (2.51 m2)
Boiler pressure180 psi (1.24 MPa)
Heating surface1,731 sq ft (160.8 m2)
 • Tubes 
1,272 sq ft (118.2 m2)
 • Firebox139 sq ft (12.9 m2)
Superheater:
​
 • Heating area321 sq ft (29.8 m2)
Cylinders2
Cylinder size17+1⁄2 in × 23 in (444 mm × 584 mm)
Performance figures
Tractive effort25,050 lbf (111.43 kN)
Career
Operators
  • Tanganyika Railway (TR)
  • → East African Railways (EAR)
Class
  • TR: ML class
  • EAR: 26 class
Number in class12
Numbers
  • TR: 700–705/600–605
  • EAR: 2601–2612
Delivered1947, 1952
[1]

The six members of the ML class were built in 1947 by W. G. Bagnall, in Stafford, England, and delivered to the TR. They were later operated by the TR's successor, the East African Railways (EAR), as its 26 class. In 1952, six further members of the 26 class were delivered to the EAR. They had been built by Vulcan Foundry, of Newton-le-Willows, Lancashire (now part of Merseyside), England, and Robert Stephenson and Hawthorns of North East England.[2]


Class list


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

Builders
number		 Built 1st TR
number		 2nd TR
number		 EAR
number		 Notes
2832 1947 700 600 2601
2833 1947 701 601 2602
2834 1947 702 602 2603
2835 1947 703 603 2604
2836 1947 704 604 2605
2837 1947 705 605 2606
6182/7444 1952 – – 2607
6183/7445 1952 – – 2608
6184/7446 1952 – – 2609
6185/7447 1952 – – 2610
6186/7448 1952 – – 2611
6187/7449 1952 – – 2612

See also



References



Notes


  1. Ramaer 1974, pp. 70–71, 84, 87.
  2. Ramaer 1974, pp. 70–71, 83.
  3. Ramaer 1974, p. 62.

Bibliography




Media related to TR ML class at Wikimedia Commons



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