Titanic tourist submersible goes missing with search under way
This appears to be the vessel in question:https://oceangate.com/our-subs/titan-submersible.htmlPressure hull made from titanium and carbon fiber, capable of diving to 4000m (13,000 ft).I recall that one reason SpaceX switched from carbon fiber to stainless steel pressure vessels (fuel tanks) was the difficulty of detecting structural flaws.Can any engineers comment on whether that task is easier for a vessel exposed to compression (under sea) as opposed to vacuum (space)?How likely is a catastropic failure due to undetected flaws in carbon or composite (carbon + Ti) structures like these?