. Development of a spherical acrylic plastic pressure hull for hydrospace application. Hulls (Naval architecture); Submersibles. Figure 2. Engineering concept of the Naval Experimental Manned Observatory for continental shelf depths. Scope of Investigation The present study was limited to the investigation of a single 120-inch spherical capsule concept, grade G acrylic Plexiglas material, a single fabrication technique, and one operational depth. Only sufficient experimental investiga- tions and analytical studies were to be performed to substantiate the adequacy of a single prototype 66-inch
. Development of a spherical acrylic plastic pressure hull for hydrospace application. Hulls (Naval architecture); Submersibles. Figure 2. Engineering concept of the Naval Experimental Manned Observatory for continental shelf depths. Scope of Investigation The present study was limited to the investigation of a single 120-inch spherical capsule concept, grade G acrylic Plexiglas material, a single fabrication technique, and one operational depth. Only sufficient experimental investiga- tions and analytical studies were to be performed to substantiate the adequacy of a single prototype 66-inch detailed capsule design for operation at continental shelf depth. The experimental data were limited to the recording of critical pressures, change of displacement, and strains of capsules under hydrostatic pressure. Analytical studies were limited to calculating critical pressure and strains under short-term loading, the only experimental condition for which analytical tools were in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stachiw, Jerry D. , 1931-; Naval Civil Engineering Laboratory (Port Hueneme, Calif. ). Port Hueneme, Calif. : U. S. Naval Civil Engineering Laboratory
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