Apparently most "narco submarines" are spotted visually from the air, and those are camouflaged to blend in with the ocean and produce minimal wake, so I would

Apparently most "narco submarines" are spotted visually from the air, and those are camouflaged to blend in with the ocean and produce minimal wake, so I would imagine spotting the missing (non-camouflaged) sub at barely-submerged depth would be trivial (as long as it hasn't drifted to far from the last known position) [1]. I saw one of the news articles about this event mention there is a P-8 Poseidon sub-hunting aircraft assisting the search effort, and I would imagine it has a very nice set of optical sensors, thermal cameras, sonobouys, etc. and would have no issues finding the missing sub if it were near surface level ... I don't believe the P-8 has magnetic field sensors but I believe older sub-hunting aircraft had them, which could also be a means of locating the sub. Unfortunately (and I hope I am wrong) I suspect the vessel is drifting in deep water or stuck on the sea floor - if it were shallow they'd have probably found it already. [1] I found this photo on Reddit of what is apparently a partially-submerged Italian navy submarine photographed from a P-3 Orion on a training exercise - I was surprised how good the visibility is https://i.redd.it/eb68q4j1pnt71.jpg https://i.redd.it/eb68q4j1pnt71.jpg commentary: https://www.reddit.com/r/interestingasfuck/comments/q8u9te/an_active_submarine_spotted_from_the_air_during_a/ https://www.reddit.com/r/interestingasfuck/comments/q8u9te/a...