Submarine that disappeared on tour to see the wreckage of the Titanic: what is known and what remains to be clarified

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Boat with tourists disappeared on Sunday (18). The company responsible for the tour charges US$ 250,000 (R$ 1.19 million) from each passenger for a place on its expedition to see the wreckage of the ship that sank in 1912. Submersible that takes passengers to see the Titanic disappears The intention was make a 10-day tourist expedition across the Atlantic Ocean to see the wreckage of the Titanic, which sank in 1912. But the submarine with capacity for five people disappeared on Sunday (18), shortly after starting to descend to reach the bottom of the sea. Receive news on the disappearance of the submarine on WhatsApp Below, see what is known and what remains to be clarified about the case: What happened? A tourist submarine disappeared in the Atlantic Ocean shortly after it began to descend to the bottom of the sea. The submarine was taken to the site on a large vessel that left Newfoundland, Canada. As the model is not autonomous, like a large submarine, it had to be carried on the sea surface for 643 km to the diving region. What was the purpose of the tour? Go on an expedition through the wreckage of the Titanic, a ship that sank in 1912. What is the model of the submarine? The vessel, which is 6.5 meters long and 3 meters wide, is called Titan. This type of submarine can carry up to five passengers. When happened? On Sunday (18), the submarine began to descend to the bottom of the sea, but disappeared shortly afterwards. The journey to the bottom of the sea should have taken two hours, and the vessel stopped communicating after an hour and 45 minutes of descent. Who offers the tour and how much does it cost? The Titanic Expedition is a trip offered by OceanGate. The tour to see the wreckage of the Titanic costs US$ 250,000 (R$ 1.19 million) per person. Who’s on board? There is a pilot and four passengers on board. The confirmed names are: Stockton Rush, executive director of OceanGate and pilot of the submarine; Shahzada Dawood, Pakistani businessman; Suleman Dawood, who is Shahzada’s son; Hamish Harding, British billionaire and explorer; Paul-Henry Nargeolet, former commander of the French Navy and leading expert on the sinking of the Titanic. What could have caused the problem with the submarine? Eric Fusil, an associate professor and director of the shipbuilding center at the University of Adelaide in Australia, described some possibilities: A fire could disable the vessel’s systems or create toxic fumes that could render the crew unconscious. There may also have been a flood, which would have resulted in an almost instantaneous implosion. The most optimistic scenario would be a loss of power; this would still allow the vessel to surface. What could have happened to the submarine? It is known that the vessel is in trouble because communication has been interrupted, but it is not possible to say precisely what happened. Experts, however, have their theories. The submarine could be on the ocean floor, it could be floating on the surface, or it could have imploded under the pressure of the water column. How’s the search going? The search operation is being carried out jointly by the US and Canadian Air Forces. This Tuesday (20), the teams announced that they will expand the search area. John Maugerda, Rear Admiral of the US Coast Guard, said in an interview that it will be necessary to search even deeper than the area currently searched by the probes. In addition to the probes, the US and Canada sent planes and ships to the region where the submarine disappeared. Government agencies and commercial companies specializing in deep water are also helping with the operation. Are there any leads on the sub’s whereabouts? Underwater noises were picked up during the searches, according to the US Coast Guard. There is still no information about the date the sounds were heard. According to authorities, the underwater sounds were picked up by a Canadian aircraft in the search region. How long should oxygen last? Crew members have oxygen available to stay about four days underwater – which ends this Thursday (22). Where and when did the Titanic disappear? In the Atlantic ocean. The famous ship sank in 1912, on its maiden voyage, after hitting an iceberg. More than 1,500 people died. The wreckage was found in 1985 at a depth of 3,800 meters. Titanic wreck is reconstructed in 3D for the first time

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