I'll post here even though I am not sure if the forum is active, the last discussions being over ten years old.
Anyway, it has been my dream of many years to construct my own ocean cruising submarine, and the idea of using concrete for the hull has intrigued me very much. The reasoning behind it seems very sound.
I would like to learn more about this if possible. I applied for membership, but the address "info@concretesubmarine.com" does not work any more. Is there some alternative avenue or space for new members /contributors?
I would appreciate a reply, and I am hoping that this interesting concept is still ongoing and not abandoned.
