Page 2 Advertisements Column 7

Hokitika Guardian, 4 March 1926, Page 2

SFE.M'ARIXE WARFARE REVOLUTIONISED. I.OXDOX, .M an .h I lio *• Daily Xews ” naval correspon, iltnt 'ays that a revolution in suhraarino tactics, enabling mass attacks by launcuing scores of torpedoes simultaneously and necessitating sweeping changes in naval operations, is likely to result from the American navy’s solution of the problem of underwater communication. Preliminary tests have established direct telephonic communication up to two miles and there is the possibility that the ranee may be greatly extended. The system, is hast'd on inaudible or supersonic sound waves projected through the water, enabling the commodore of a submarine flagship to direct the movements of a flotilla with the same base as the Admiralty manoeuvres the battleship fleet. The opinion is expressed that the invention will enable submarines to become £t legitimate weapon, outliving the odium acquired owing fo attacks on merchantmen,