Sonarman's gotta earn a living!
This new rudder system is gonna take a lot to learn.

Using only the strip I feel totally lost, even more so if I'm currently turning. The headings are true right?
Also a question about the engineer's manuevers, they don't appear to be available surfaced and don't appear to do anything submerged. I click one, I get the message and voice of "rudder whatever" and "double turn port", but all that happens is I drop a few meters (from 12 to 16 at least) but no turns. Ideas?