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Thursday, 01 February 2007
The first sets of plans did not show the sole in the nesting drawing.The sole got lost! It was missing from the nesting and the plywood BOM.
The new BOM requires one more sheet of 1/4" plywood.
Here is a picture of nesting drawing with the extra plywood sheet:
and here is a larger view of it:
We added some text to the building notes, page 10:
- Cut the sole parts and check if they fit. Some minor adjustments may be required. The dimensions for the sole are simple: the length is the distance between the frames on which the sole sits, the widths are the widths of the frames spaced like the frames. This gives 4 points and that is sufficient to draw a curve that will fit the sides. Check against the hull before cutting: some minor differences may appear at this stage.
- The sole is made from two pieces of 1/4? plywood joined by a 6? wide butt block. The butt block fits between two frames but must be notched to avoid interference with the stringers. The builder can also use butt blocks in 3 pieces that fit between the stringers.
- We show a 1/4? sole which is sufficient if you fill space under the sole with foam.
If you do not fill that space with foam, either use 3/8? plywood for the sole or cover the sole on each side with a layer of fiberglass fabric.
If you choose to use 3/8, it will require 1.5 more sheets of 3/8? plywood. If you fiberglass the sole, you will need 7 more yards of wide fabric: total 20 yards. Foam is the best choice. |
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Thursday, 01 February 2007 ) |
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