One possible exotic solution is liquid breathing: filling the escapers' lungs with an oxygen-saturated liquid that cannot be crushed by the pressure as gas is. Surviving even brief periods of extreme pressure is challenging. “Due to risks associated with human subject testing, all testing accomplished will be via modeling and simulation in a computer-aided or laboratory environment,” notes the project brief. The actual approach is likely to involve a combination of techniques to reduce the physiological stress and upgrades to the escape hardware. However, these suits are huge, and the project notes that stowage requirements with be a key factor, as space is highly constrained on a submarine at the best of times. Perhaps the ideal deep escape methods would be something like an Atmospheric Diving Suit, effectively a one-man submersible that completely isolates the wearer from the surrounding water, and which are used for operations to 2,000 feet and below. Navy is working on an enhanced Deep Escape System which would almost double the current maximum depth to over 1,000 feet.

On the surface, the survival suit becomes a raft protecting against drowning and hypothermia U.S. During the exercise there were several injuries, including perforated eardrums and ‘bends’ or decompression sickness in which nitrogen boils out of the bloodstream causing severe joint and bone pain. While scuba divers will surface by stages, in the survival suit the ascent is rapid and uncontrolled. The ascent to the surface takes up to four minutes from 600 feet. “ I can assure you at deeper depths (from 300 feet to 600 feet in 4 seconds) that this is an extremely traumatic experience.” “The pressure doubles every four seconds,” instructor David Wadding said in an interview afterwards. In a 1987 exercise, 25 instructors carried out an escape from a record-breaking 603 feet. The challenge is the rate of pressurization and how long a human can survive. On the surface the escape suit – technically Submarine Escape Immersion Equipment – becomes a life raft that also protects the wearer from hypothermia. Survivitec) allows for escape from stranded submarines at depth. The MK-10 Submarine Escape Immersion Equipment designed by British company RFD Beaufort Ltd (Now.

Escape from la submarine