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https://en.wikipedia.org/wiki/Ehime_Maru_and_USS_Greeneville_collision https://en.wikipedia.org/wiki/Ehime_Maru_and_USS_Greeneville... > In a demonstration for
by olejorgenb 2y ago
https://en.wikipedia.org/wiki/Ehime_Maru_and_USS_Greeneville_collision https://en.wikipedia.org/wiki/Ehime_Maru_and_USS_Greeneville...
> In a demonstration for some VIP civilian visitors, Greeneville performed an emergency ballast blow surfacing maneuver. As the submarine shot to the surface, she struck Ehime Maru. Within ten minutes of the collision, Ehime Maru sank. Nine of the thirty-five people aboard were killed: four high school students, two teachers, and three crew members.
- polishdude20 2y agoDo subs not have a sensor at the top that's able to detect things like ships right above them?
- Rinzler89 2y agoYes it's called a sonar. And would they even need to fire the sonar for that? Even using passive sonar they should be able to hear there's a boat above them considering how sensitive their sonars are. But operational mistakes can happen no matter how many sensors you have.
- mmooss 2y agoAlso there's the periscope. And radio to warn nearby vessels.