Submarine crew died in a split second
The 44 crew members aboard the Argentine submarine ARA San Juan died in a split second, when the submarine imploded. "They neither suffer nor drown, as their death was immediate," says the report on the submarine disaster from the US Navy.
Research done by the US Navy in November reveals that the Argentine submarine ARA San Juan imploded and sunk at a speed of between 10 and 13 knots and immediately killed the 44-man crew.
Analytical work of the acoustic signal that was captured at 13.58 GMT on November 15, 2017 reveals that it "started with the collapse (implosion) of ARA San Juan at a depth of 1275 feet," according to a tweet from the US Office of Naval Intelligence.
The implosion would be similar to the power of an explosion of 5.6 tons TNT, which, according to the analysis, destroyed the submarine in 40 milliseconds. "It's half the amount of time a person needs to understand what’s happening."
Although the crew may have known that a collapse was inevitable, they never realized that it happened, the analysts write.
The submarine disappeared shortly after the captain had reported problems in the electric department. Argentina launched the biggest search in peacetime involving aircraft and ships from ten countries, but the search ended up being unsuccessful.
It was an international agency that who oversees the ban on nuclear tests is respected, who told the Argentinean authorities that the three hours after the last contact with the submarine caught up with the violent underground noise analysts now find out where the submarine collapse was.
Source: Maritime Denmark