Ok I read that the tri axial grid wasn't introduced until 79, so the E39 certainly doesn't have it! But what does it have?
Thanks Jim
On pre TAFG boats the hull structure was reinforced by the interior furniture. On pan built boats, the interior furniture consisted of molded fiberglass sub assemblies that were bonded to the hull. On stick built boats, the interior furniture was plywood directly tabbed to the hull. I don't know whether the 39 was tabbed or stick built. But the reinforcement concept is the same.
The technique provided the equivalent of longitudinal stringer reinforcement at, approximately; the cabin sole periphery, the water line (seat height for a settee), and halfway between the water line and hull to deck joint (counter height, bookshelf height).
On TAFG boats the rig was attached to the TAFG structure via stainless steel cables. On pre TAFG boats the rig support was independent of the method of hull support. Some boats had chainplates glassed into the hull. Others had chainplates attached to bulkheads. I'm pretty sure the 39 has them bolted to bulkheads. Also on the 39, if I remember from some postings, the mast is deck stepped and the mast compression post is supported by a steel athwartships beam. I don't remember whether there is anything particularly problematic about this, but if I were looking at a 39 I would definitely check this piece out.
. Also on the 39, if I remember from some postings, the mast is deck stepped and the mast compression post is supported by a steel athwartships beam. I don't remember whether there is anything particularly problematic about this, but if I were looking at a 39 I would definitely check this piece out.