[QUOTE=SubV;1317222]
5.
Unlock the target (press Space). Notice the trajectory of torpedo changes automatically to intercept the ship. Move periscope crosshair and choose place where to hit the target. Fire tube one./QUOTE]
Never realised Auto TDC did this. So you unlock from Auto and it auto does the trajectory??? Strange.

Nice find though. I wonder is Manual TDC doing the same in the background..