I read this book about ten or so years ago. Not sure of when it was
written or by whom. What I can remember about it is that it was set in
the UNited states, with the Navy and was about a secreat class of a
submarine I think was called the Shark. The opening was when the
captain was on board a sub coming in to port and had a crash with a
yatch, I think which happend in New York. I know in the book it had a
secreat mission invlolving the sub which resided in a tanker that was
converted to service the sub.
I hope some one can help,
John