At Dan's request, I searched for the plans I used to change my daggerboard trunk when I rebuilt my BBSB. My orginal trunk was straight, and the daggerboard was a 4 1/2' plank, that I had to stand to insert. Since I am not going to sail this for other than photos and nostalgia... I built a new angled trunk, and will build a banana shapped daggerboard based on these plans:
Here are the before and after on my box:
Here you can see the plug that fills the entire trunk. Because I had so much hydrostatic pressure with the outboard. I built this plug, use neoprene as a gasket and screwed it to the trunk with 6 SS screws. I get barely a weep now. I used the real soft plastic trim material for the plug to ensure if there was any freezing/expansion that the plug would give and not put pressure on the trunk and cause a leak there. You can see in the above photos the trunk is made from Azek decking material I used an angled butt joint along with 5200 on the seams and ss screws to hold everything together. No leaks!!!
For the dagger board, I made a template out of scrap plywood, but have not figured out what material I will glue up for it. Marine plywood would be the easiest, but not authentic.... same deal on the tiller. Probably try to find White Oak and dowel it or spline it.
Here are the before and after on my box:
Here you can see the plug that fills the entire trunk. Because I had so much hydrostatic pressure with the outboard. I built this plug, use neoprene as a gasket and screwed it to the trunk with 6 SS screws. I get barely a weep now. I used the real soft plastic trim material for the plug to ensure if there was any freezing/expansion that the plug would give and not put pressure on the trunk and cause a leak there. You can see in the above photos the trunk is made from Azek decking material I used an angled butt joint along with 5200 on the seams and ss screws to hold everything together. No leaks!!!
For the dagger board, I made a template out of scrap plywood, but have not figured out what material I will glue up for it. Marine plywood would be the easiest, but not authentic.... same deal on the tiller. Probably try to find White Oak and dowel it or spline it.
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