CK17 daggerboard

Sail Boats 15' and up. Please include the boat type in your question.
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bolekc
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CK17 daggerboard

Post by bolekc » Sun Jul 14, 2019 12:50 pm

which edge should be at the front: longer or shorter?
There are two drawings: B213 / 1 showing the front shorter and B213 / 7 showing the front shorter.
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Jaysen
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Re: CK17 daggerboard

Post by Jaysen » Sun Jul 14, 2019 1:09 pm

I’m pretty sure it is always the longer edge forward. It’s the tapers that are most important though. Port/starboard need the same profile. Leading edge is smooth but quick to the full thickness. Trailing edge tapers gradually.
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jacquesmm
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Re: CK17 daggerboard

Post by jacquesmm » Sun Jul 14, 2019 2:58 pm

The fat edge forward. I don't have the plans here but will check tomorrow.
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Re: CK17 daggerboard

Post by jacquesmm » Mon Jul 15, 2019 2:50 pm

I checked and I think the confusion comes from the two options.

The standard version uses a dagger board. The dagger board is exactly as I show on D213/5 and in the profile drawings with the short side towards the bow. The rounded edges are important, they allow the dagger board to go up and pivot when you hit the bottom.

There is a centerboard option. For the CB, the profile is different because it pivots instead of being pushed up. For the CB, the short edge is forward (= leading edge). Each is correct, pick one and follow the plans.
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