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Lyttelton Times, Volume CXVII, Issue 18066, 5 April 1919, Page 7

The amazing pace of technical progress in petrol engines for airplanes and automobiles has its benefits in other fields It is now seen that stationary engines driven by internal combustion can be made lighter and cheaper by adopting a higher piston speed. A radical- departure from standard design is required. Again, it is believed that we are on th» eve of farreaching changes of practice which will facilitate the use of hitherto untried fuels and the economical combustion of weak mixtures when engines are running on light load. The whole effect of these discoveries. should be a great impetus to the employment of stationary oil engines.