Tom's Drawings
I have hand drawn on paper, then scanned in some drawings of our proposed new hull for the replacement garvey. Notice that all details are subject to change. These drawings are to facilitate discussion of our possibilities.Profile
This drawing shows the garvey in profile, showing the placement of 4 frames and 2 thwarts. It also shows leeboards instead of the centerboard, and a high aspect ration kick-up rudder. Using leeboards opens up the interior of the cockpit, because there is no centerboard box. Strong bracing is needed where the leeboards attach to the sides (see Details drawing below), so two frames are placed there, about 2 or 3 feet apart. Between them can be storage of sails, lines, etc. Yes, people have to step over these frames, but they do that today over the thwarts.
Details
The upper drawing is a perspective showing the "box" formed by the two center frames, the ones that take the stress from the leeboards. The left leeboard is up, the right one is down. The handles need to be very strong and long enough to give crew leverage to raise and lower the boards. When sailing to windward only the leeward board is down, the windward one is raised. When tacking crew must raise the one and lower the other, a new crew job.
The lower drawing shows an aft view of the above perspective, showing the relation between frames and chine logs, starboard board down, leeward one up, Notice the former is not vertical, but is parallel to the topsides. Think of the leeboard as a crowbar, with lots of pressure right to left down deep. Pressure is translated to a board at the chine, into the chine, and hence into the hull. A strong pull on the pivot bolt is translated to a 2x6 inside the hull, from there to the two frames, hence into the hull.
Also shown are fairly large limber holes through which pass the chine logs. So the storage area will get water. I suggest a false floor to hold storage a couple of inches above the bottom, and two solar bilge pumps to keep things really dry.
Tom Gibson
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