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The New Zealand Railways Magazine, Volume 12, Issue 7 (October 1, 1937.)

Future of the Turbine Locomotive

Future of the Turbine Locomotive.

Turbine locomotives have not developed to any extent in Europe, although here at Home the L.M. & S. Railway is experimenting with a machine of this type in main-line service. In Sweden, as a result of trials extending over some years, additional turbine locomotives have been acquired, these being a product of the Ljungstrom Steam Turbine Company. The locomotives have a conventional boiler, with a pressure of 185 lb., the turbine being mounted
(Photo., French National Tourist Office Collection.) A picturesque scene in Montmartre, Paris.

(Photo., French National Tourist Office Collection.)
A picturesque scene in Montmartre, Paris.

transversely across the front of the smoke-box, and geared to a jack-shaft from which drive is transmitted to the eight coupled wheels by coupling rods. The locomotive is of 2-8-0 wheel arrangement, and has a four-wheeled tender. The turbine is rated at 1,370 h.p., but can, however, exert up to a maximum of 2,000 h.p. Of the combined impulse and reaction type, a high tractive effort is exerted over a great range of speed. In a recent test a drawbar pull of 21.7 tons was recorded, hauling 1,687 tons up a 1 in 100 gradient. The modern three-cylinder reciprocating engines of similar adhesive weight previously utilised gave a drawbar pull of only 16.7 tons. The particular turbine locomotives in question are employed by the Swedish State Railways over the Grangesberg-Oxelosund Railway, a very difficult route involving many steep grades, over which are handled heavy iron ore trains of up to 1,700 tons. There is undoubtedly a promising future ahead for the turbine locomotive, and we hope in due course to hear of its extended employment both on the continent and on the Home railways.