The Sonar on the foxtrot as in the display is very much a one time look deal, it doesn't have the history ability like the western systems and this pts it at a major disadvantage.
The Feniks and Tamir systems were decent against surface ships yet performed poorly against submarines.
Upgrades did happen however it still didn't solve the issues revolving ASW, overall the display screen you see is a soviet early form of MFD it was tossed out in the 1980s and in the 1990's after the foxtrots were gone they started using waterfall displays on the other boats.
You will find the same consoles in the Romeo Juliet and refitted into the Whiskey and Zulu classes among others.
Todays Russian boats use MFDs with waterfall and history displays which are about as equivalent as to what the US fields in their 688s, that in itself is a significant step upwards in their ASW capability with submarines.
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