Home made is-was

[Fish40]

Originally Posted by TG626

I'd have preferred that one, but all the links there were/are dead ends.

The files are still available at HNSA. Go to the website, and at the top click on "Knowledge Base". From the drop down window, select "Manuals and Documents". Scroll down about halfway or more, until you see "Submarine Attack Course Finder". I believe you could print them out from there. Also, the tech. info on the instrument as well as examples on how to use.