Gmail - Digital reconstruction of a 17th century clinker boat

I've worked in 3D with some ship parts, the tidal remains of a cargo sloop in the Hudson River, on it's west bank, in the Bear Mountain State Park, left behind, and in some commemorative photographs of Henry Hudson's "Half Moon" passing by in the foreground at the 1939(?) celebration. My question is the type of construction. Each of the ribs was "hinged" with an iron rod. For example a section of three piece wood come up from the keelson, where (almost "Mad" magazine like) two further rib sections would be joined in the pin, and further another section of two or three pinned further up the rib, with a second iron rod. It looks sort of like a specific form of replacing the carving out of larger ship timbers, also perhaps half as light. This was a centerboard cargo hauler, the box for the board there also "pinned" together with iron rod, vertically. Somewhat funny, it is in a remote area, by the steepness of the access, and we had approached it as perhaps able to do a handheld magnetometer survey, which we had recently completed in Saratoga Springs on a "city gas" manufacturers EPA site. It was also during a solar storm event so when we got there, it was kind of funny, as we were presented with a number of standing iron rods where standing there, the wood they once joined had since washed away, and the ribs were made from sections and short iron rods (no nuts or bolts, all close fitted). Sort of like this in plan: =======||_______||========= =======||_______|| =======||(*space) ||========= (*formatting auto edits) this: ) (tipped over) in profile. || actually the iron rod, though appeared in pieces is solid. == and ___ meant to be the wooden "composite" frame. Anybody have a description? I used a "total station" and diagrammed the structural elements in detail of the best example of the two and provided NY State's SHPO with an AutoCad file I think and paper copy of the remains, back in 1993 or so. Posted to Underwater Archaeology 12/21/05