plawolf
Lieutenant General
It shows a rudder of the latest 039 submarine. Is it possible to attach a towed sonar array to the top end of the rudder?
Look at the TAS pod on the top of the Akula's rudder to get an idea of the size of such a thing.
Engineering and technology has moved on since when the Akula was designed and built, but sometimes you just cannot beat physics. A TAS, line and reel takes a lot of space because of the sheer lengths required for the array and line.