trips to the titanic. that was something that was just going on at this point in the development of his endeavor. he was building it to give humanity more access to the ocean, to learn about the ocean and learn about our planet and help us manage all the changes that are going on. explaining that motive to people is important. it is the truth. obviously you have studied this because as a cheap ocean scientist with these sorts of things, you have done thousands of dives yourself. i know from the very beginning that you thought this was a catastrophic implosion just based on your experience. obviously we are talking about this carbon fiber hull. what made you think this from the beginning? just hearing the basic facts, communication and then a sudden drop off of the
would interpret the carbon fiber hull and its integrity. so you are bolted in from the outside. and there is a long descent where after a few minutes you re in darkness. there are the lights of the sub on the outside, but you make a lengthy descent down to the bottom, a multi-hour descent to get down there. and depending on the vehicle s ability to locate titanic, because some of these missions in the past with titan, they couldn t reach the wreck, they couldn t find the wreck. so your time on titanic really depends on your ability to locate that wreckage, and then 45 minutes or an hour or more to get back up to the surface. and so a fairly four, five, six-plus hour mission in this sub would be a normal procedure. obviously i agree with the assessment i think it happened fairly immediately when the loss of communications happened, where they would have been only partway down to the wreckage. i think at that time of loss of
colleague has confirmed that two different former oceangate employees raised concerns during their time employed there specifically about the thickness of the hull. the first one, that first concern that was brought was that the company hadn t performed adequate testing on the hull to make sure, nondestructive testing as they put it to make sure the structure was sound and safe for that type of dive. the other employee said when the hull arrived it was only 5 inches thick, the carbon fiber hull, which is so critical at that pressure point. it was only 5 inches thick. they expected it to be 7 inches thick. both of those employees said they brought those concerns to oceangate management and were largely dismissed. significant concerns and potential red flags, all could be examined for quite sometime to come. thank you very much. joining us now experts on submersibles and deep sea exploration, a former navy commander who spent four years piloting mini military