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Updated: July 20, 2025
So our salvation lay totally in the hands of the mysterious helmsmen steering this submersible, and if it made a dive, we were done for! But aside from this occurring, I didn't doubt the possibility of our making contact with them. In fact, if they didn't produce their own air, they inevitably had to make periodic visits to the surface of the ocean to replenish their oxygen supply.
"Humph!" Ned Land put in, his tone denoting reservations. Just then, as if to take my side in the argument, a bubbling began astern of this strange submersible whose drive mechanism was obviously a propeller and the boat started to move. We barely had time to hang on to its topside, which emerged about eighty centimeters above water. Fortunately its speed was not excessive.
But the German submersible swerved just a trifle and the torpedo missed by a narrow margin. At the same moment the German submarine began to submerge. She escaped the fire of the pirate until her periscope also was all that was visible. Then the pirate rose; a moment later the German craft came from below and both vessels launched torpedoes simultaneously.
The submarine is, however, a kind of destroyer that is submersible, in which the necessities of submersibility preclude great speed. The submarine was designed to accomplish a clear and definite purpose a secret under-water attack on an enemy's ship in the vicinity.
They too were alarmed by the sudden silence, and were changing their course going, like the French steamer, toward the place where the Californian had met the submersible. "Can it be that they are already in the Mediterranean!" the operator exclaimed with astonishment on finishing his report. "How could the submarines possibly get 'way down here?..." Ferragut did not dare to go up on the bridge.
"In some way I must have become lodged there, under the awning, in such a position that the pitching of the barge failed to throw me off. I never regained consciousness until I heard a voice shouting in my ear, and felt some one pulling me, and when I had recovered my senses, I found myself in the submersible." "And all your companions were gone?" asked Cosmo, in a voice shaking with pity.
Cosmo greatly regretted the absence of the submersible when they were picking their way over this perilous region, but they encountered no real difficulty, and at length found, by celestial observations, that they were beyond all dangers and safely arrived over the deeply submerged desert.
The ideal submersible commerce-raider should be a vessel of such displacement that she could carry a sufficient number of large guns in her superstructure to enable her to fight off the attack of surface destroyers and the smaller patrol craft. She should be capable of cruising over a large radius at high speed, both on the surface and submerged.
Moreover, the metallic hull of the submersible forms in itself an almost ideal shield to screen the outgoing effect of these motors. Considerable and important development has been made in the creation of sensitive sound-receiving devices, to hear the propeller vibrations and the mechanical vibrations that are present in a submersible, both of which are transmitted through the water.
If the labyrinth became hopelessly tangled, the submersible would rise above it like an airship, and after clearing the obstacle, it would resume its speedy course just a few meters above the ocean floor.
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