If it didn’t come back up in the allotted time, they are most likely dead. IIRC, the Titanic is under 12,500 feet of water. That equals over 5,000 PSI on the hull.
F around and find out
I remember the Kursk. When the Russians waited until they knew the crew was dead before allowing Western help. The Finnish rescue diver connected to the stricken sub at the “escape port hatch” but when opened, the Kursk was full up with sea water and all aboard dead.
Yes. This isn’t search and rescue, it’s search and recovery.
Yes, very limited amount of air in that little thing.
I’ll pass. Too risky and too $$$$. Besides, looking at pictures on the internet is the lazy man’s way to see the world.
“... the Titanic is under 12,500 feet of water.”