SHALLOW WATER VESSELS
The problem of finding a satisfactory means of propelling craft in very shallowwaters is one which is of great practical interest in many parts of the world. ABritish engineer, who lias given special attention to it, has evolved a method of jet propulsion which gives very satisfactory results. A centrifugal pump fitted on an upright spindle draws water in at tho centre and discharges it by two mouths at the sides. When the jets are thrown aft tho boat moves forward, and since the pump can be turned round it affords a means of steering as well as propelling the boat. Should the 'boat run aground, the pump can be used to squirt water on the mud or sand, so as gradually to wash it away and enable the boat to got clear. A weed cutter is provided at the mouth of the pump to remove any vegetable growths which may collect there. Although this method of. propulsion is not so efficient as the ordinary screw it is much better adapted to. the navigation of shallow weed-clogged. waterways. Tests which have been carried out on about two hundred miles o. . derelict waterways have proved the prac-.-Heal value of the invention.
Permanent link to this item
Hononga pūmau ki tēnei tūemi
https://paperspast.natlib.govt.nz/newspapers/DOM19210510.2.113
Bibliographic details
Ngā taipitopito pukapuka
Dominion, Volume 14, Issue 192, 10 May 1921, Page 8
Word count
Tapeke kupu
203SHALLOW WATER VESSELS Dominion, Volume 14, Issue 192, 10 May 1921, Page 8
Using this item
Te whakamahi i tēnei tūemi
Stuff Ltd is the copyright owner for the Dominion. You can reproduce in-copyright material from this newspaper for non-commercial use under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International licence (CC BY-NC-SA 4.0). This newspaper is not available for commercial use without the consent of Stuff Ltd. For advice on reproduction of out-of-copyright material from this newspaper, please refer to the Copyright guide.
Log in