3 ms·
Without good maps and only passive sonar you can very well hit a mountain. Subs want to evade detection so active sensory is offline most of the time. Perhaps t
by raxxorrax 5y ago
Without good maps and only passive sonar you can very well hit a mountain. Subs want to evade detection so active sensory is offline most of the time. Perhaps the situation would have merited that they don't dive as deep in uncharted territory, but subs usually only see things that make noise and mountains are quite silent.
- cwingrav 5y agoPassive sonar picks up bounces. A mountain bounces background noise plus currents flow around it which would show that something was there (currents create temp differences and affect sound waves). They might not have had a clear picture, but they would have known something is there. (Source: a bit of experience)