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The New Zealand Railways Magazine, Volume 2, Issue 6 (October 1, 1927)

[section]

Electrical haulage is undoubtedly destined to develop to a remarkable degree on the railways of the five continents in the years which lie ahead. Not for some considerable time, however, will electricity totally replace steam in main-line service. Realising that the “Iron Horse” is likely to remain for many years the prime mover in the railway world, much attention now is being devoted to the possibilities for improving upon existing design, and evolving new and modified types of machine offering prospects of heightened efficiency and economy in running and maintenance.

One of the most interesting of post-war activities of the locomotive builders is found in the novel “Kitson-Still” engine, developed by the well-known establishment of Kitson & Company, Leeds, England. This takes the form of a locomotive unit constructed on the “Still” principle-a feature well-known in its application to ship propulsion-in which the engine is double-acting, with internal combustion at one end of the cylinder, and steam at the other. The production of steam in the boiler is assisted by the excess heat of the I. C. exhaust, while the cylinder jackets, which relieve the very high combustion temperatures, also are in direct connection with the boiler, and take a part in steam production. Oil burners are used for heating the boiler primarily, the steam end thereby being rendered available for starting, when it possesses marked advantages over the oil cycle.

The first complete locomotive of the new type is now being put into traffic.