4 ms·

"Surfacing" unassisted would mean floating with the top of the submarine at water level. You still won't be able to open the door.

• gs17 3y ago
  That's possible. Then at least some form of ventilation usable after surfacing should have been included if you're locking people in.
  • stickfigure 3y ago
    Every thruhull is a potential source of death at 5000+ psi. The bigger problem seems like underinvestment in "getting found" technology.
  • 93po 3y ago
    There is 96 hours of oxygen onboard, and even without any supplement, 5 people would survive in a space that large for at least half a day with no fresh air