Teach me to shoot pattern-running torps?
 

I avoid them like fire because I'm not sure what settings should be entered into the computer. I carry straight-running torpedoes only plus a couple of passive acoustic.

Are you using any mods ? If you use GWX there is an quite useful explanation in their manual pdf.I guess it would work pretty much the same in every mod or vanihla so i guess you should DL from gwx page.