

This generally isn't that useful, as ships have massive vision ranges, however it can be useful for predicting what your likely opponents are based on what your allies have found elsewhere in the map. This does not let you acquire targets earlier, but instead lets you identify ships that others have spotted far away. Normally, proximity detection is 2 km, within that range you will detect anything regardless of smoke or intervening terrain, so the upgrade helps if you are narrowly turning around islands or flushing destroyers out of smoke as it gives you a bit more warning. Secondly, it increases the proximity detection range. Lets you see torpedoes from further away, giving you more time to react and evade them. As far as I know, the upgrade does 3 things.įirstly, there's the torpedo acquisition range increase.
