LOSS OF WAVE RECORDER

Press, Volume LXXXVII, Issue 26395, 13 April 1951, Page 8

LOSS OF WAVE RECORDER

ATTEMPTS MADE AT RECOVERY (From Our Own Reporter) „ j GREYMOUTH. April 12. Methods, similar to radar detection used in the last war to find mines and submarines, have been used to find the wave recorder which was lost off the beach at Karoro some months ago. The approximate location of the recorder has been determined and it is hoped a diver will be able to couple the instrument to a dredge hoist. The diver is equipped to receive a relay of recordings from electrons in the form of copper discs on the end of eight foot poles, which are lowered into the water with him. Contact with the wave recorder will be recorded on a meter on the launch and then in turn relayed to the diver, who will be able to discover the proximity of the instrument by a variance of sound. If conditions under water are favourable, the diver will then attach the instrument to the dredge equipment, and the comparatively easy task of returning it to shore will then start. Because of the weight of the recorder, approximately IJ tons, it will be necesSto use the dredge Mawhera in of the smaller launches engaged this week in the exploratory work. The wave recorder was installed on the beach to help in weather forecasting. It is one of the only three in use for similar work in the British Empire