Trieste submarine giant squid9/10/2023 ![]() The sphere was completely self-contained, having a closed-circuit rebreather system with oxygen provided from cylinders while carbon dioxide was scrubbed from the air by being passed through canisters of soda-lime. The pressure sphere was attached to the underside of the hull and accommodated two crew who accessed it via a vertical shaft through the hull this access shaft was not pressurized and flooded with seawater on descent. Pressure sphere, with forward ballast hopper, left The pressure sphere was built separately and installed on the hull in the Cantiere navale di Castellammare di Stabia, near Naples. The hull was built by Cantieri Riuniti dell'Adriatico, in the Free Territory of Trieste on the border between Italy and Yugoslavia, now in Italy, hence the name. This general configuration remained the same but after modifications to the hull for Project Nekton, which included the dive to Challenger Deep, Trieste was more than 15 metres (49 ft) long. ‘’Trieste’’ consisted of a heavy crew sphere suspended from a hull containing tanks filled with gasoline (petrol) for buoyancy, ballast hoppers filled with iron shot and floodable water tanks to sink. īuilt in Italy and launched on 26 August 1953 near the Isle of Capri on the Mediterranean Sea it was operated in the Mediterranean by the French Navy for several years until it was purchased by the United States Navy in 1958 for US$250,000, equivalent to $2.5 million today. The term bathyscaphe refers to its capacity to dive and manoeuvre untethered to a ship in contrast to a bathysphere, bathys being ancient Greek meaning "deep" and scaphe being a light, bowl-shaped boat. Trieste was designed by the Swiss scientist Auguste Piccard, based on his previous experience with the bathyscaphe FNRS-2. General arrangement, showing the key features Since the 1980s, it has been on exhibit in the National Museum of the United States Navy in Washington, D.C. Trieste was purchased by the United States Navy in 1958 (two years before its record dive), and was taken out of service in 1966. The mission was the final goal for Project Nekton, a series of dives in the Pacific Ocean near Guam. They reached a depth of about 10,911 metres (35,797 ft). The vessel was piloted by Jacques Piccard (son of the boat's designer Auguste Piccard) and US Navy Lieutenant Don Walsh. On 23 January 1960, it became the first crewed vessel to reach the bottom of Challenger Deep in the Mariana Trench, the deepest point in Earth's seabed. Trieste is a Swiss-designed, Italian-built deep-diving research bathyscaphe. Trieste shortly after her purchase by the US Navy in 1958Īcciaierie Terni/ Cantieri Riuniti dell'Adriatico
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