Escape trunk

Submarine escape trunk
View inside a submarine escape trunk, looking up from below the lower hatch

An escape trunk is a small compartment on a submarine which provides a means for crew to escape from a downed submarine; it operates on a principle similar to an airlock, in that it allows the transfer of persons or objects between two areas of different pressure.[1]

  1. ^ Lance, Rachel. "How to Escape From a Sunken Submarine". Wired – via www.wired.com.