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Show FIVE CLASSES OF TORPEDOE9 All Equally Deadly If Only They HII the Mark. Thcro aro fivo classes of torpedoes. Tho earliest form was a stationary submarine mine, usually exploded beneath be-neath a ship by actual contact. Such mines aro still used for harbor do-fensc, do-fensc, but sometimes they aro fired by mechanical means from shoro at tho moment a liotllo vessel is passing pass-ing over them. Tho spar torpedo, also still used, consists of an ex-plosivo ex-plosivo charge carried at the end of a long spar in a boat's bows, tho craft being rowed close up to tho doomed vessel and the char go exploded. explod-ed. Tho towing torpedo, as Its narao implies, was towed along and maneuvered ma-neuvered so as to explodo underneath an enemy's vessel, this kind being ln turn followed by tho true Bolf-propoll-Ing torpedo, the Whitehead, now in general use. The last form which need bo noticed Is tho Qrennan, whoso movements can bo controlled from the shore. |