Thanks for your reply. I am hoping for more detail from an email sent to Brewer’s Design company. I know I could take off a through hull and look into the hole at the material pattern, and same with a deck water or fuel fill port or air vent, but I’m not currently anywhere near the vessel and there is a limit to what a seller would allow at an early stage.
A survey would be a future step if a sales contract was obtained with contingency on the survey. I would see about locating a surveyor that would be willing to look a little deeper than typical.
Thank you for your reply. I had also sent an email to the Brewer Design company when I posted this, but have not yet received a reply. I also may try, if needed, to contact the Taiwan builder who still appears to have an operating company.
My concern was for the strength of the hull and decks with a cored aged vessel. The issue of possible de-lamination of the glass from the core material would be a concern, not to mention water osmosis into the GRP below waterline that I’ve heard is common with Asian boats of this vintage.