No, however, you have hit on one often overlooked capability of the TA... that is, to see under layers when the submarine is above the layer.
To see this in action, I would recommend going about 30m or so above the layer with your TA out, and going to 3kts in an area with a lot of surface traffic.
As the TA hits the layer, it will begin to lose the surface contacts and then will black out altogether. As it falls farther below the layer, it will begin to pickup under layer contacts and also some of the contacts that were above the layer depending on the acoustics.
It's a critical tactic for ASW in both submarines and the FFG, not to mention for the MH60 dipping sonar.
Cheers,
David
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LW
 
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