Hello to those who still might play SH1 / SHCE
I have found on the web one article detailing use of the TDC in manual mode which a sometimes try out for challenge. This gives tactics for finding range, course and speed.
I know this is a very old game and I can't think but imagine that the sub has almost reached crush depth, looking at all those web pages and communities that are now gone. But anyways here is the link
https://web.archive.org/web/20081205....com/range.htm
Untill the last dive my friends
All this will disapear from the face of the earth some day...