Whatever the hell those wires actually do, as long as you put them on your model in the right place, then I guess it will be correct even if we don't know what the hell their purpose is.
Hi guys, I am new in this forum, this U-boat is my favourite. I have checked in "The Type VII U-Boat anatomy of the ship" and the wire description is: Fore hydroplane tensioner. I recommended this book, because all the information and details included, with different versions and all internal and deck arrangements. I have plans to start my model next year.
All the best .