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Originally Posted by sc_rufctr
OK thanks... What could they be doing right now to find them? "Sonar?"
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This is a bit more in my realm.
The depth of the potential mishap is a real problem in terms of getting a sensor near the mishap. Without going into geek-speak, there are definitive, measurable performance ranges of "active" sensors like SONAR. However, I have been out of the game for along time and do not know what is the state of the art at this time. The problem hasn't changed, the sensors may have.
The composite structure is also an issue, especially if they are on the sea floor. SONAR basically "paints" with energy in the water column and provides the SONAR operator with, frankly, some very rudimentary range and bearing info - in this case that will be hard.
My guess, guess only, is that there are now fields of passive sonobuoy's in the area listening for unusual sounds. But again, depth is an issue. Tactical sonobuoy's don't need to get beyond the operational depth of submarines, which others have mentioned is not close to where the Titan may be.
The article linked earlier was very good concerning the Coast Guard and lack of anything other than sea noise.
There is a lot more sound in the water than most folks know.
I just hope is was quick.