“to those aboard the 44-year old KRI Nanggala-402”
That is an old submarine. Lots of time for a stress riser to form in the pressure hull.
What would cause this to break apart??
thanks to all for the responses. It sure is sad
...a sonar scan had shown the submarine at a depth of 850 m (2,800 ft), while its crush depth was presumed to be 500 m (1,600 ft).
I still suspect that many other submarines knew it was a goner, because a crush depth implosion is noisy and distinct enough to be heard on the other side of the world.
1978 movie trailer “Gray Lady Down” https://www.youtube.com/watch?v=aQewlH-cggo
Maintenance and training.
Maintenance and training.
Or, find yourself at the bottom of the sea.
No serious design flaws in the Type 209, and none has broken into pieces before.
It appears they dove too deep.
One of Our Submarines - Thomas Dolby
https://www.youtube.com/watch?v=qnW9Pq6Dhco