How quickly does it happen? What kind of noise or other vibrations occur? Would occupants know as it was happening? What would be left? And all the other questions….
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A former submarine expert explained what this might be like. Dave Corley, a retired Navy Captain, said: “When a submarine hull collapses, it moves inward at about 1,500 miles per hour – that’s 2,200 feet per second.
“A modern nuclear submarine’s hull radius is about 20 feet. So the time required for complete collapse is 20 / 2,200 seconds = about 1 millisecond. A human brain responds instinctually to the stimulus at about 25 milliseconds. Human rational response is at best 150 milliseconds.
“The air inside a sub has a fairly high concentration of hydrocarbon vapors. When the hull collapses it behaves like a very large piston on a very large Diesel engine. The air auto-ignites and an explosion follows the initial rapid implosion Sounds gruesome but as a submariner I always wished for a quick hull-collapse death over a lengthy one like some of the crew on Kursk endured.”
John Jones, a former member of the US Navy Submarine Force, added: “Implosion events occur within milliseconds, far too quickly for the human brain to comprehend.”
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