the noises were heard by a canadian p-3. and that was this morning and some yesterday. reporter: the noise described as banging sounds at regular intervals in the department and homeland security briefing are now described as less specific than that. but still, the focus of the search. we need to have hope, right? i can t tell you what the noises are. what i can tell you, and i think this is the most important point. we re searching where the noises are. reporter: the sounds picked up by buoys like this one dropped from planes. and then listening for any sounds of life from the titan submersible. this team has multiple sensors. they re in the area. they re sending data back expeditiously to the best in the world. reporter: it takes about a day for ships from st. john s, the closest land, to the titanic wreck site to arrive to the search area. it is enormous. two times the size of connecticut. a grid pattern presented by the coast guard indicates the size of the
what to do to conserve oxygen. until listening to the experts, you had something built from carbon finer and titanium. and we don t know if there was a catastrophic incident immediately when they lost communication. paula newton in halifax, nova scotia. thank you. veronica has been covering this story in everett, washington. i understand you spoke to a subcontractor who worked on the titan submersible. there have been so many questions about safety protocols taken and others not taken by this team leading up to this by choice. and they were public by the steps they didn t take. what have you learned from the folks you ve spoken to out there? i think it is really interesting that the subcontractor who worked on the titan. he said he worked on the development and will the testing
coast guard indicates the size of the search and how it has expanded. the commercial ship horizon arctic went out this morning with c-17 cargo planes. and another coast guard ship left st. john s today and is on the way. they will join eight other ships. either already at the search area or en route. the submersible made of carbon finer and titanium. no hatch. the five-person crew bolted into the craft. stirred controversy during its development and testing. in 2018, the marine technology society, a volunteer group that offers technical advice to the industry expressed concerns to oceangate about, quote, the current experimental approach adopted by oceangate could result in negative outcomes from minor to catastrophic that would have serious consequences for everyone in the industry. unquote. the industry group wanted oceangate to submit to comprehensive testing and