rs are inclined, and the hull structure has shown signs of failing under the vessel dives. To maintain submergence after reaching atus, never turns black, and having an entirely closed enormous pressures developed, the hulls becoming dis- the desired depth, the vessel maintains a downward in-… … The Periscope, Conning Tower, and Hatch. Note the Ample Deck Space and Good Freeboard When the Boat is Running at the Surface. THE GOVERNMENT TRIALS OF THE NEW U. S. SUBMARINE "OCTOPUS."
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