All wired and aligned, ready for epoxy! |
Modification to lower bulkhead for tighter fit. |
Check out these pictures of the plans, sure looks like a goof to me. Sheet 1 of the plans show the lower edges as 20mm wide while the matching keel, stem, sternpost and timbers are all 18mm wide.
Then sheet 2 appears to show that the bulkhead bottom edge is level with the hull sides. But the bulkhead sides from the lower side notch is longer than the hull side at the corresponding location, for instance BH7 was 10mm longer. I wonder if newer plans have changed in these areas, I bought mine for hull #164 2nd hand so I have no idea how old these plans are but the sign off date is 1993. A lot can change in 20 years, I know I have:)
10mm half measure at bottom, equals 20mm total width. |
Two 9mm Ply pieces is 18mm. |
Looks like the bulkheads end above the keel bottom, even with the hull sides. |
I didn't pick up these discrepancies until the wiring began and there were either large bulges at each BH or wide gaps along the timbers.
Once bulkheads were installed a lot of time, maybe too much, was spent aligning the hull, i.e. getting all the bulkheads between the stem and stern lined up. Also making sure each bulkhead was vertical and perpendicular to the keel backbone. I used a laser level with it clamped to the stem or stern to check the bulkheads. I suppose this may be overkill, I don't expect most Pacific Island Wharram builders use anything more sophisticated than an eyeball and piece of string. But the task is done, time to start the epoxy process and lock it down, and in the process this hull becomes, theoretically at least, able to float! That's a nice milestone:)
Then finally today once I was happy with the alignment, the big epoxy pours began, .75 cups per mix:) Probably 1/3 to 2/3 drips out as I'm intentionally making the first pour thin enough to get in to the joint completely. It will take several pours over a couple days before the keel is done.
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