If you go to the front page
www.DNAMERICA.org you will find a DN archive.
http://dnamerica.org/archive/Shell_Document.htmIn this archive are class rules, sailing rules, some classic articles on sailing the DN, and the collective wisdom of the class as posted on the prior DN board.
There is EXCELLENT information on building, tuning, buying and sailing DNs in an indexed manner so the topics can be reached. It contains links to other messages and the original strings which may or may not work. Mostly NOT. When I get around to it, I'll disable these links. Meanwhile, it is a fully functional reference for DN information. Just don't expect the links to work within the old messages.