Accordingly, citing emerging technology and recent studies, by 1996 researchers at the Naval Submarine Medical Research Lab presented biomedical-based recommendations for enhancing survival of escapers by a) overhauling current submarine escape systems and procedures and b) substituting existing thermal protection suits for the Steinke Hood. Furthermore, the current method of submarine escape was no longer practical, because the Steinke Hood provided no thermal protection for the escaper during the escape and while awaiting recovery. These shortcomings were attributed to the method of escape and operating procedures. Further testing was done from a bottomed submarine at 318 feet off the Dry Tortugas.Īn advancement over its predecessor, the Momsen Lung, the Steinke Hood was standard equipment in all submarines of the United States Navy throughout the Cold War.Īs early as 1974, one study highlighted significant biomedical shortcomings in the escape system: hypothermia, nitrogen narcosis, hypercarbia, barotrauma, and decompression sickness. US Navy 041012-N-0879R-007 A Sailor assigned to the Los Angeles-class attack submarine USS Key West (SSN 722), receives training with the MK10 Submarine Escape Immersion Equipment (SEIE).jpg 2,100 × 1,500 369 KB. The Steinke Hood was designed and tested in 1961, when inventor Lt. It featured a hood attached to the top of the life jacket which captured air vented from the jacket under decreasing pressure so that the escapee could breathe during a long ascent. Harris Steinke was a an inflatable life jacket. In this video they just yell for the same reason. A submariner from the Cold War period told me this was referred to as the HO HO HO drill, as it was required to yell that as you ascended to relieve pressure in your lungs. A Sailor acts as a road guard as the students march. The third video shows a practice ascent filmed at the escape trainer at the Naval Submarine School, with cameras inside and outside the suit giving you the best idea of what it is like without actually doing it. Navy divers before participating in the submarine escape trainer evolution. The second video shows a Steinke Hood unrolled and points out pertinent details. The first video was shot aboard the USS Virginia and represents current technology. Thus the compartment must be sealed off from the interior of the submarine and the pressure inside the chamber must be raised to sea pressure in order to make it possible to open the escape hatch. Only when the pressure inside the escape chamber is equal to the sea pressure can the hatch be opened. The water pressure on the outer hatch is always greater than the air pressure inside the submarine, which prevents opening the hatch. For emergencies, a deep submersible can attach to the deck directly above the hatch for deeper rescues. The Escape Trunk is the hatch through which up to 22 sailors can exit a submarine, either for routine missions or in an emergency, at up to 600 feet of water. Submarine Escape Trunk And Escape / Survival Suits
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