The problem was that if they surfaced away from the support vessel, there was no way to open it to get fresh air. So you could still run out of oxygen and die while floating around on the surface waiting to be found.
Yeah that sounds like less of an issue to me, honestly. That support vessel van be there quick enough, send in airplanes, whatever. You can make a more intricate inside and outside locking mechanism but that’ll make your entire submarine a whole lot more expensive
The problem was that if they surfaced away from the support vessel, there was no way to open it to get fresh air. So you could still run out of oxygen and die while floating around on the surface waiting to be found.
Yeah that sounds like less of an issue to me, honestly. That support vessel van be there quick enough, send in airplanes, whatever. You can make a more intricate inside and outside locking mechanism but that’ll make your entire submarine a whole lot more expensive