Hello,
in the meantime just a "Alberich-question": Do you think that the upper pressure hull was also coated with rubber tiles? It appears to be consequential to have done this, hardly to believe that the wooden deck absorbed the Asdic-Signals, but would the rubber coat have stand the enormous temperature of the exhaust pipes, for example? Just wondering about that since I followed your outstanding drawings.
Good luck with the new monitor
Falo
P.S.: My first post here, I was a "unregistered member" for years.