‘Mallet’ Locomotive PAKIS BARU No.5
The Mallet locomotive was the most numerous type of articulated steam locomotive built, with some 8000 examples produced by European, North American and Japanese manufacturers between 1887 and 1961. The type is named after Anatole Mallet, the engineer credited with successfully applying compounding (using steam more than once) in locomotive design.
The Mallet design has a rigid main frame that supports the rear end of the boiler. At the front of the main frames are the high-pressure cylinders. A sub-frame, carrying a second set of driving wheels powered by low-pressure cylinders, is positioned ahead of and pivoted to the main frames. Exhaust steam from the high-pressure cylinders is carried to the low-pressure cylinders through flexible steam pipes, as is the exhaust steam from the low-pressure cylinders to the blast pipe in the smoke box. The overall result is therefore a compact but powerful locomotive able to negotiate relatively tight curves.
PAKIS BARU No.5 was built by Orenstein & Koppel of Berlin in 1905 for use at a sugar mill in Indonesia. It arrived at Statfold in September 2004. Restoration began in 2006 and was completed in 2007. PAKIS BARU No.5 is currently the only working example of the type in Britain larger than 10¼” gauge.
To learn more about the Pakis Baru No.5 and the other historic steam locomotives at Statfold why not buy a copy of the Guide Book and Stock List from our shop?