Hadal is a fictional demonstration brand. On a real operator, every crewed submersible would be classed and periodically re-certified by an accredited marine classification society, and every dive flown to a written dive plan.
Hadal
Hadal
Hadal is a fictional demonstration brand. On a real operator, every crewed submersible would be classed and periodically re-certified by an accredited marine classification society, and every dive flown to a written dive plan.