Though the US Navy initially preferred a design displacing around 27,000 tons, due to the limitations imposed by the Washington Naval Treaty, it instead opted for one that provided the desired attributes but only weighed around 20,000 tons. Locating Yorktown, they scored three bomb hits, one of which caused damage to the ship's boilers slowing it to six knots. "It's really interesting, the role that vision plays in these discoveries. USS Yorktown - Construction: In the years after World War I, the US Navy began experimenting with various designs for aircraft carriers.A new type of warship, its first carrier, USS Langley (CV-1), was a converted collier that possessed a flush deck design (no island). Even though we had identified the Yorktown from the mapping of the ocean floor, in the eyes of the public, it didn't become official until that eyewitness positively identified it," he said. Il est déclaré opérationnel le 30 septembre 1937, et c'est le capitaine de vaisseau Ernest D. McWhorter qui en prend le commandement. Bill Surgi, a Midway survivor who was on board the Laney Chouest when the scientific team transmitted the first pictures of the underwater wreck, was able to positively identify the ship from the video pictures obtained by the robot camera at the bottom of the ocean. That same month, Yorktown received new RCA CXAM radar equipment. A version of this article appeared in MIT Tech Talk on June 10, 1998. The ocean depths there reach nearly 17,000 feet. As Lexington was under attack, Yorktown's skipper, Captain Elliot Buckmaster, was able to evade eight Japanese torpedoes but saw his ship take a severe bomb hit. Work on Yorktown was completed the following year and the vessel was commissioned at the nearby Norfolk Operating Base on September 20, 1937. The Yorktown discovery has received a great deal of media attention, with articles appearing in major newspapers across the nation. A new type of warship, its first carrier, USS Langley (CV-1), was a converted collier that possessed a flush deck design (no island). "We searched in a 10-by-20-mile box on the bottom of the ocean floor," said Dr. Mindell, an electrical engineer and historian of science and technology who participated in the Mediterranean Sea expedition last summer that yielded amphorae and other artifacts from ancient Rome and Carthage. Professor Mindell was not aboard the Laney Chouest when those first video pictures arrived -- he was already back at MIT finishing out the semester. Chemical engineering associate professor recognized for contributions to the field, as well as dedication to his community. There were, on 7 December, only three in the Pacific: Enterprise, Lexington, and Saratoga. But he was on board a few days earlier when the wreck was identified from the scientific mapping of the ocean floor. Completing this task, it united with Vice Admiral William Halsey's TF8 (USS Enterprise) for strikes against the Marshall and Gilbert Islands. Though initially tasked with striking Japanese shipping at Rabaul, Brown redirected the carriers' efforts to Salamaua-Lae, New Guinea after enemy landings in that area. Departing on January 6, 1942, TF17 escorted a convoy of Marines to reinforce American Samoa. Massachusetts Institute of Technology77 Massachusetts Avenue, Cambridge, MA, USA, Department of Civil and Environmental Engineering. "You 'mow the lawn' over the site with a sonar sled, going back and forth, which we did for several days," he said about the Yorktown search. Because the Black Sea lacks oxygen at depths greater than 600 feet, biological decay of ships on the ocean floor is unlikely, allowing for hope that a ship found there would be perfectly preserved. Dr. Ballard, Professor Mindell and the rest of the crew found her at a depth of 16,650 feet, nearly a mile deeper than the Titanic. Commanded by Captain Ernest D. McWhorter, Yorktown finished fitting out and began training exercises off Norfolk. Returning to Pearl Harbor, it was estimated that it would take three months to fully repair the damage. "This is very near the depth limits of these technologies," said Dr. Mindell. L'épave du Yorktown a été découverte et photographiée en mai 1998 par cinq mille mètres de fond, par l'océanographe Robert D. Ballard. Une fois armé, le porte-avions part pour la zone d'entraînement de Virginia Capes, au large de la baie de Chesapeake, en janvier 1938, où il conduit les opérations de qualification de son nouveau groupe aéroporté. A credit line must be used when reproducing images; if one is not provided Unfortunately, as work continued, the Japanese submarine I-168 slipped through Yorktown's escorts and fired four torpedoes around 3:36 PM. Dernière modification le 27 juillet 2020, à 21:25, https://fr.wikipedia.org/w/index.php?title=USS_Yorktown_(CV-5)&oldid=173333452, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence, 8 pièces de 127 mm AA en affuts simples, canons multiples de 20 mm AA. In the wake of this raid, Yorktown remained in the Coral Sea until April when it withdrew to Tonga to resupply. Having received new Oerlikon 20 mm anti-aircraft guns, Yorktown sailed for the Pacific on December 16. "No one has ever gone after the USS Yorktown and the Japanese carriers lost in the Battle of Midway because of the depth where they lie," said Dr. Ballard. As a result, Yorktown was ordered back to the Atlantic Fleet in April 1941. We had to make a historical judgment about which data to believe, and then integrate it with the technical capabilities of the sonar, shipboard operations and weather and time constraints to lay out a search strategy," he said. On June 4, Yorktown's aircraft sank the Japanese carrier Soryu while other American aircraft destroyed the carriers Kaga and Akagi. Troisième navire de guerre américain à porter ce nom, l'USS Yorktown est un porte-avions de 19 800 tonnes. Creative Commons Attribution Non-Commercial No Derivatives license. This picture shows the ship's air traffic control center (the four windows on the right), topped by the remains of the gun director, an early version of computerized weaponry that included a telescope which directed the guns by remote control. Reaching San Diego at the end of the month, the carrier became the flagship of Rear Admiral Frank J. Fletcher's Task Force 17 (TF17). The salvage efforts began to show progress through the day as the carrier's list was decreased. This effort was followed by USS Lexington (CV-2) and USS Saratoga (CV-3) which were built using hulls intended for battlecruisers.

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