sschevel wrote:Looking over the plans I still do not understand the 3/8 offset for the hatch, perhaps someone could comment on that.... Guess I need to see one up close or some photos...........
Guy
Guy,
Speaking from (expensive) experience, you probably need to decide what type of hinge you're going to use and purchase it before you cut the offset.
There are two dimensions that are dependent upon the the type of hinge. The first is the sidewall "notch". You need to leave a gap to allow for weatherstripping between the top of the galley sidewall and the bottom side of the hatch plywood that extends out over the galley sidewall. Some hurricane hinges have an offset in the hinge - the cabin side of the hinge is higher than the galley side of the hinge. If the hinge you use has an offset in the hinge, you need to allow for the offset and the gap for weatherstripping.
I used a hurricane hinge from Grant Whipp which does not have the offset. The notch for this hinge can be 1/4". This will allow room for the weatherstripping and, if you decide to use it, the 1/4" will also allow you to cap the top of the galley plywood with aluminum edge mold.
The other dimension to think about is the distance between the galley header and the hatch header. A hurricane hinge has horizontal and vertical legs on each leaf of the hinge, and there is a separation between the vertical legs. I need to check, but I believe for Grant's hinge, the dimension to leave between the vertical legs is 3/8".
Hope this helps rather than confuses.
Tom