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Page views since 2023-01-26: 4659897
Tanganjika Railways class MK
East African class 25
go back
Tanzania | 1925
11 produced
Image of locomotive
Vulcan Foundry

In 1925 and 1926, Vulcan Foundry built eleven metre-gauge Mikados for the Tanganyika Railways which were designated class MK. The boiler pressure was relatively low at 160 psi, what was compensated for by the superheater. They had drivers of 54 inches and three cylinders with a diameter of 18 inches, what ensured a high pulling power. Originally they carried the numbers 206 to 216 and were later renamed to 400 to 410. Under the East African Railways, they became class 25.

General
Built1925-1926
ManufacturerVulcan Foundry
Wheel arr.2-8-2 (Mikado) 
Gauge3 ft 3 3/8 in (Meter gauge)
Dimensions and Weights
Wheelbase26 ft 9 in
Rigid wheelbase12 ft
Total wheelbase47 ft 7 in
Service weight129,360 lbs
Adhesive weight89,600 lbs
Total weight193,760 lbs
Water capacity3,002 us gal
Fuel capacity16,000 lbs (wood)
Boiler
Grate area27 sq ft
Firebox area139 sq ft
Tube heating area1,306 sq ft
Evaporative heating area1,445 sq ft
Superheater area297 sq ft
Total heating area1,742 sq ft
Power Plant
Driver diameter54 in
Boiler pressure160 psi
Expansion typesimple
Cylindersthree, 18 x 23 in
Power
Power sourcesteam
Estimated power1,000 hp (746 kW)
Starting effort28,152 lbf
Calculated Values
steam locomotive
freight
last changed: 08/2025
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