The intelligence community also established Deep Submergence development requirements.Ī decision was made to build a second bathyscaphe, Trieste II, with the original Trieste assigned to the Deep Submergence Systems Project to test equipment that would be employed on other deep submergence systems. Subsequently other associated development programs were assigned to the Deep Submergence Systems Project office, including the development of the NR-1 nuclear powered research submarine. To rectify this deficiency the Deep Submergence Systems Project, initially assigned to the Special Projects Office responsibile for developing the Polaris Fleet Ballistic Missile System, was established to develop deep ocean capabilities. Ignorance and inability which surrounded the entire business." A summary of the Thresher search operation in 1965 highlighting the Navy's inadequacy in deep-sea search, location, and rescue noted that the tragedy "demonstrated only too clearly the degree of The loss of the Thresher was a wake up call for the Navy. When the submarine Thresher was lost on 10 April 1963, a committee established under Admiral Stephan to assess the implications of the accident concluded that the Navy did not have the operational assets to conduct missions in the deep sea. Trieste was subsequently was placed on permanent exhibit at the Navy Museum in Washington, DC. The bathyscaphe was retired soon after that, and some of her components were used in the newly constructed Trieste II. In August 1963, Trieste found Thresher's remains off New England, 1400 fathoms below the surface. In 1963, she went to the Atlantic to search for the lost submarine USS Thresher (SSN-593). Restricted in maneuverability, it carried 34,000 gallons of aviation gasoline to provide buoyancy for the pressure capsule and other equipment. At this depth, the pressure is over 8 tons per square inch. No one has been able to come near that depth since then. It took 5 hours to fall 7 miles, and when the explorers reached the bottom they stayed 20 minutes. On 23 January 1960 the Trieste took two men to a depth of 35,800 ft ft (10,910 meters) - the deepest spot in the ocean - in the Mariana Trench near Guam. In October 1959, after being fitted with a stronger pressure sphere, Trieste was transported to the mid-Pacific to participate in Project "Nekton", in which she conducted a series of very deep dives in the Marianas Trench. Transported to San Diego, California, in 1958, she conducted tests in the Pacific during the next several years. After several years of operations in the Mediterranean, she was purchased by the US Navy under the sponsorship of Office of Naval Research. By this point, another bathyscaphe, the Trieste II was almost complete and Trieste was decommissioned in 1966.Trieste, a deep-diving research bathyscaphe, was launched in 1953 near Naples, Italy, by the Swiss scientist Auguste Piccard. In 1963 Trieste was transported to the east coast of the United States to look for the missing submarine USS Thresher. These four paintings depict some aspects of working on and operating Trieste during this time. In 1961 two artists Salvatore Indiviglia and Luis Llorente went to San Diego to document Trieste as it was undergoing repairs and improvements after the dive to the Challenger Deep. After completing its mission, Trieste returned to the United States. On 23 January 1960 the bathyscaphe dived to a depth of 35,814 feet and reached the ocean floor. Trieste went to the Marianas to explore the one the deepest spots in the Pacific Ocean - the Challenger Deep. Upon entering service in the Navy, some modification were made including a new crew sphere. Crew accessed the sphere from the top deck through a vertical shaft through the structure. The crew occupied the 7.09-foot pressure sphere, attached to the underside of the structure. It had water ballast tanks fore and aft of the main compartment, with releasable iron ballast in two conical hoppers along the bottom, located fore and aft of the crew sphere. The bulk of the structure were floats filled with 22,000 gallons of gasoline. In 1958 the US Navy purchased the Trieste for research purposes The Trieste was designed by Auguste Piccard and built by 2 Italian companies. The bathyscaphe launched in 1953 near the island of Capri.
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