THE COASTAL SERVICE.

Otago Daily Times, Issue 19047, 18 December 1923, Page 5

THE COASTAL SERVICE.

NEW DIESEL-ENGINED VESSEL. iFbom Due Own Correspondent.) WELLINGTON, December 17. A new coastal steamer, the motor vessel Inaha, which is the first Diesel-engined ship for the New Zealand coastal service, is due here in January.. She will trade between Patea and Wellington. Her engines consist of two sets of 150 h.p. each, driving twin screws, and her speed on trial was nine knots. Her length is 110 ft, breadth 23ft, depth moulded 10ft Sin, deadweight capacity 200 tons, and horse-power as stated, 300 h.p. Her engines are of the semi-Diesel type, two-stroke, working with an injection pressure of about 6001 b to the square inch. This type of engine has certain advantages of simplicity over the regular Diesel engine, such as, for instance, is fitted in the Union Steam Ship Company’s Hauraki. With the serni-Diesel engine the pressures used are not so groat, and the fuel is gassified and burned in the spherical combustion chamber, kept hot by the working of the engine for starting purposes. A tubular ignition plug and a pilot jet spray are heated as a preliminary measure, the process Taking about (hree minutes.