[XXi]

I`ve been using TV and TXI torpedoes and never been hit by one. Keep in mind though, I use it ONLY against escorts and only if the situation turns bad and they start hunting me or at least searching.
So, I fire against targets from at least 500m distance while runnign slowly. The targets usually make at least 10 knots - perhaps that`s why these torpedoes almost never miss.