Beginning in December of 1958, Trieste was fitted with a stronger sphere, fabricated by the Krupp Iron Works of Germany.įollowing the ship’s fabrication, Trieste was transported to Guam to participate in Project “Nekton.” On 23 January 1960, Trieste made history when Lieutenant Don Walsh, USN, and Jacques Piccard descended seven miles to the Challenger Deep-located at the southern end of the Mariana Trench-the deepest known point of the Earth’s oceans.įollowing the historic dive, the bathyscaphe was overhauled and then conducted a number of dives out of the San Diego area supporting Navy research objectives. Navy acquired the vessel in August 1958 and transported the bathyscaphe to San Diego, California, where she was homeported. In August 1953, the bathyscaphe was first placed in the water and later in that month, Piccard and his son, Jacques, dove to a depth of five fathoms.Īfter several years of operations in the Mediterranean, the U.S. Scientific and navigational instruments for the vessel came from Switzerland, Germany, and Italy. In 1952, Piccard was invited to Trieste, Italy, to commence construction. World War II delayed his work on the deep-sea research submarine until 1945 when he worked with the French government on the development of the craft. Trieste-a research bathyscaphe-was the development of a concept first studied in 1937 by Swiss physicist and balloonist Auguste Piccard.
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