[desertsolitaire]

Do submersibles such as this generally have fittings for something like an emergency oxygen tether line, or emergency power line? Even when they have no escape hatch fitting for rescue through when the craft is immovable and deep underwater?
They do have CO2 scrubbers but they stop working when battery power dies. I imagine heat also comes from those same, overworked, batteries and I wonder how much redundancy was built into the life support? Sounds like they focused upon keeping costs to them, low by using off the shelf and inexpensive parts.

[ansel12]

This is the best video on the device that everyone is passing around.

The Titan Tragedy
https://www.youtube.com/watch?v=4dka29FSZac

[oldskoolwargamer2]

Sub is actually constructed from mixture of titanium and carbon fiber. From what I understand “tube” is carbon fiber but “end caps” are titanium.

[null and void]

I imagine heat also comes from those same, overworked, batteries

Batteries?

Lithium ion batteries?