Bill Irwin, Callisto 37VT19
Our LNVT is number 19, it seems in the earlier boats the four forward ports were built with a shallow lower sill which allows water to drip in when it rains and the ports are left open.
I recently found a solution. Seaworthy Goods makes a high-quality hood that keeps the rain out when the ports are open. The Port Visors come with 3M self-adhesive tape already attached to the Visor. They install around the outside of porthole trim rings. Installation is simple; no drilling, cutting, or special tools are required.
The ports are made with Lexan XL102UV (formerly XL-10) it is a tough polycarbonate with a UV-resistant surface on both sides. They say it filters out UV and has excellent clarity, it is used where high impact strength is needed outdoors, e.g. hurricane shutters and vandal-resistant windows. It is attached with 3M VHB (Very High Bond) tape, an extremely strong all-weather adhesive, with UV and chemical resistance. It is formulated for permanent uses, such as attaching road signs and aircraft wing components. The tape holds up well to salt, heat, cold, water, and solvents.
It is important to note that the proper sizing for our ports is 14-R not 15R. They have have a wonderful customer service that you can call with with any questions. CONTACT: Sea Worthy Goods (941.448.9173) http://seaworthygoods.com