spaced 3 feetapart and tied together by the ribs or transverse frames,and by the longitudinal girders of the vessel. The in-tersection of the frames and girders, whose top andbottom flanges are riveted to the inner and outer shells, forms a series of separate, watertight compartments, or cells, as… … SIGHTING A FOUR INCH RAPID FIRE GUN ON THE COAST DEFENSE MONITOR AMPHITRITE. tends to within about 3 feet of the water line, where itforms a shelf upon which the side armor belt is carried.The steel belt is about 7 feet high, reaching to the maindeck, 4 feet above the water line, and it is 9…
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