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maritime DC & PPE Information Center
personnel protection

Submarine Escape Immersion Equipment (SEIE)



The submarine Escape Immersion Equipment (SEIE) is whole-body suit and an one-man life raft that allows submariners to escape from a disabled submarine. The suit allows survivors to escape a disabled submarine at depths down to 600 feet (183 m) and provides protection against hypothermia.  Once on the surface, he/she inflates the raft using a CO2 cartridge and climbs inside. The SEIE is comprised of  the immersion suit, an inner thermal liner, and a gas-inflated single-seat life raft, all contained in an outer protective stowage compartment.  It replaces the Steinke hood which served as a means to escape from a submarine but the Steinke hood did not provide hypothermia protection. The SEIE suit is a part of the submarine escape system.




The SEIE suit replaced Steinke hood pictured below.


For more information, see the Index.