[sublynx]

The stars, sun, the helmsman not keeping the set compass direction in lower TC's and game clock are all flawed in SH3, which makes real navigation impossible. One can simulate a kind of real navigation by letting the boat drift to the estimated direction and then finding out the real position by cheating if the weather is clear and would have allowed a fix by using a sextant. If one CTRL+clicks the map view it will place the u-boat under the mouse cursor.

Having the u-boat off the map is more useful when attacking. One can't use plotting as easily as can be done if one knows exactly where one's u-boat is. That forces one to learn real life maneuvering board and/or attack disc techniques.