d possible to run a torpedo, with a cable trailing behind drive it at a speed of 30 knots an hour against the sub- with two observers, they are laid according to a system it, through the crowded waters of the harbor, without merged hull of the ship, the proper depth being main- of cross… … tains an outer and an inner control of the mine, and can SJSCHARGIJTa A WHITEHEAD TOBPEDO. conductor, the first of which permit a friendly vessel to pass, by failing to close the conveys current for driving ping. The lights which a dirigible torpedo must carry the motor in the torpedo, the other…
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