Ka-29 helicopter of the Russian Navy is also destroyed in strange circumstances, some sources speak of "friendly fire" (until when?), while Ukrainian sources assure that it has been destroyed by their drones
Be that as it may, the loss is very important, since the Ka-29 are actively being used for Ukrainian naval drone fighters that attack the Russian fleet... There are not many of these helicopters in the Russian navy
If we take the Russian information as true, and the multiple shootdowns by "friendly fire", we would have to conclude that the IFF systems have a medium to mediocre performance...