Well, H.B. and Hitman are absolutely right with their explanation about the TDC. But I can live very well with the dials as we have them now, because they all work properly, only the design of the dials are different in the Game TDC. And there were other TDC designs in WW2 boats. I've got a book with a picture of an earlier version of the TDC that looks completely different.
@DarkWraith
If you designed a TDC on a special page that looks like the original, that would be very cool and a very nice game design gadget, but in my opinion not essential for gameplay. I like it very much as it is now, with the TDC-dials in the scope and uzo view, it's very handy this way.
I think still better than a separate TDC-page would be a fully functional and operable TDC in the Tower, as well as all the other switches and dials in the boat should be operable and show correct data. But for me, it's not first priority, no need to rush. I'd love to see the correct working sh4 UI first, the improved reco-manual and functional tube door switches.
Thanks again for your great work!
Edit: I just had a look at this KiUB thingy, unfortunately I haven't seen this before. This TDC is excellent and has the same Dials as the one from u-995. Maybe you could take this one as a template.