Likely be much later than that, Steve.

Hi
I wrote to UBISOFT ROMANIA for propose a complete US TDC to them :
- definition for all parameters
- basic TDC drawings
- all TDC formulas
- all inputs (handcranks) and outputs (dials) (linked by formulas)
then complete TDC schematics (angle solver, sound bearing converter, position keeper)
- list and role of all crews involve in schedule torpedo attack
in fact, I try to incite them to do that because I suppose they know hnsa.org site and are able to do that (some of UBISOFT Romania programmers are engineers from Bucharest polytechnic school and they don't need trigonometry lessons).
your proposal concern submarines where signal treatment (digital processing) is a main part of job.
interseting but different : I say no to your proposal but good luck for you.
P.S. TDC is not the only part for old submarine, I hope also see a day
possibility to manage ballasts (trimming,buoyancy):hmmm: