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Federated Malay States class L
Malayan State Railway class 531
Malaysia | 1921 | 20 produced
flickr/Historical Railway Images

To eliminate the need for double-heading express trains, the FMSR ordered 20 Pacifics from Kitson, which were delivered in 1921. They had a superheated boiler with Belpaire firebox and were among the more powerful meter gauge Pacifics.

During World War II, the Japanese brought five of the locomotives to Burma, but they returned after the war ended. They soon became class 531 and some remained in service until 1971. The 531.01 was the only one that was preserved and is now in front of the National Museum in Kuala Lumpur.

General
Built1921
ManufacturerKitson & Co.
Axle config4-6-2 (Pacific) 
Gauge3 ft 3 3/8 in (Meter gauge)
Dimensions and Weights
Length56 ft 4 in
Fixed wheelbase9 ft 5 in
Service weight198,016 lbs
Adhesive weight80,640 lbs
Total weight124,544 lbs
Axle load26,880 lbs
Water capacity3,002 us gal
Fuel capacity13,552 lbs (coal)
Power
Power sourcesteam
Estimated power1,000 hp (746 kW)
Optimal speed32 mph
Starting effort19,652 lbf
Power Plant
Driver diameter54 in
Boiler pressure180 psi
Expansion typesimple
Cylinderstwo, 17 x 24 in
Boiler
Grate area24.3 sq ft
Evaporative heating area1,485 sq ft
Total heating area1,485 sq ft
Calculated Values
steam locomotive
passenger
last changed: 03/2024
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