effects of coning tower upgrades?

[Daniel Prates]

Originally Posted by WernherVonTrapp

They were supposed to make the boat less visible on the surface, though I don't know if there's any real effect equated in-game.

Indeed, I experienced several conning tower changes and never once 'felt' that it was making any difference regarding being spotted by other ships or planes.

But in real life it must have made a hell of a difference, as the conning towers in earlier subs had almost twice the area.