There arenât many vessels that can descend nearly a mile into the deadly netherworld of the deep sea. But even among that small group, Titan was something different. The submersible, which imploded this week, killing all five on board, used lightweight materials and other features not found in similar craft. As the inevitable post-accident investigationsâand lawsuitsâproceed, there are bound to be questions as to whether the owner of the undersea craft, OceanGate Expeditions, compromised safety to profit from the booming adventure tourism industry. For starters, the Titan was built from an unusual material to enable it to dive to places such as the wreck of the Titanic, which is 12,500 feet under the Atlantic. While submersibles such as the U.S. Navyâs Alvin (which has also explored the Titanic) use a titanium pressure hull, the Titan is made out of carbon fiber as well as titanium. âTitan is the worldâs only carbon-fiber submersible capable of diving five people to 4,000 meters (13,123 feet),â OceanGate claims on its website. Just as in aircraft and spacecraft, titanium is used in submersibles because itâs both lightweight and strong; but itâs also extremely expensive and difficult to work with. Thatâs why the U.S. Navy still builds its nuclear submarines out of steel, though a new Virginia-class attack submarine is estimated to have a maximum depth of perhaps 1,500 feet. Just as in aircraft and spacecraft, titanium is used in submersibles because itâs both lightweight and strong; but itâs also extremely expensive and difficult to work with. Thatâs why the U.S. Navy still builds its nuclear submarines out of steel, though a new Virginia-class attack submarine is estimated to have a maximum depth of perhaps 1,500 feet. [View in Browser]( [Popular Mechanics]( [SHOP]( [EXCLUSIVE]( [SUBSCRIBE]( [How Does the Titan Submersible Compare to James Cameronâs Deepsea Challenger?]( [How Does the Titan Submersible Compare to James Cameronâs Deepsea Challenger?]( [How Does the Titan Submersible Compare to James Cameronâs Deepsea Challenger?]( There arenât many vessels that can descend nearly a mile into the deadly netherworld of the deep sea. But even among that small group, Titan was something different. The submersible, which imploded this week, killing all five on board, used lightweight materials and other features not found in similar craft. As the inevitable post-accident investigationsâand lawsuitsâproceed, there are bound to be questions as to whether the owner of the undersea craft, OceanGate Expeditions, compromised safety to profit from the booming adventure tourism industry. For starters, the Titan was built from an unusual material to enable it to dive to places such as the wreck of the Titanic, which is 12,500 feet under the Atlantic. While submersibles such as the U.S. Navyâs Alvin (which has also explored the Titanic) use a titanium pressure hull, the Titan is made out of carbon fiber as well as titanium. âTitan is the worldâs only carbon-fiber submersible capable of diving five people to 4,000 meters (13,123 feet),â OceanGate claims on its website. Just as in aircraft and spacecraft, titanium is used in submersibles because itâs both lightweight and strong; but itâs also extremely expensive and difficult to work with. Thatâs why the U.S. Navy still builds its nuclear submarines out of steel, though a new Virginia-class attack submarine is estimated to have a maximum depth of perhaps 1,500 feet. Just as in aircraft and spacecraft, titanium is used in submersibles because itâs both lightweight and strong; but itâs also extremely expensive and difficult to work with. Thatâs why the U.S. Navy still builds its nuclear submarines out of steel, though a new Virginia-class attack submarine is estimated to have a maximum depth of perhaps 1,500 feet. There arenât many vessels that can descend nearly a mile into the deadly netherworld of the deep sea. But even among that small group, Titan was something different. The submersible, which imploded this week, killing all five on board, used lightweight materials and other features not found in similar craft. As the inevitable post-accident investigationsâand lawsuitsâproceed, there are bound to be questions as to whether the owner of the undersea craft, OceanGate Expeditions, compromised safety to profit from the booming adventure tourism industry. For starters, the Titan was built from an unusual material to enable it to dive to places such as the wreck of the Titanic, which is 12,500 feet under the Atlantic. While submersibles such as the U.S. Navyâs Alvin (which has also explored the Titanic) use a titanium pressure hull, the Titan is made out of carbon fiber as well as titanium. âTitan is the worldâs only carbon-fiber submersible capable of diving five people to 4,000 meters (13,123 feet),â OceanGate claims on its website. Just as in aircraft and spacecraft, titanium is used in submersibles because itâs both lightweight and strong; but itâs also extremely expensive and difficult to work with. Thatâs why the U.S. Navy still builds its nuclear submarines out of steel, though a new Virginia-class attack submarine is estimated to have a maximum depth of perhaps 1,500 feet. Just as in aircraft and spacecraft, titanium is used in submersibles because itâs both lightweight and strong; but itâs also extremely expensive and difficult to work with. Thatâs why the U.S. Navy still builds its nuclear submarines out of steel, though a new Virginia-class attack submarine is estimated to have a maximum depth of perhaps 1,500 feet. [Read More]( [Read More]( [The Supersonic T-7 Red Hawk Is a Year Behind Schedule. Blame Crash Test Dummies.]( [The Supersonic T-7 Red Hawk Is a Year Behind Schedule. Blame Crash Test Dummies.]( You don't hear that every day. [Read More]( [Alternate text] [Alternate text] [Power Up Anywhere With These Solar Chargers]( [Power Up Anywhere With These Solar Chargers]( No outlet? No problem. 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