anyone built this one??

[CK 17]

http://www.bateau.com/studyplans/CK17_study.htm

Joe Schena

[Jack C]

Sure. A gentleman in Italy named Pippo is building this boat. He chimes in here from time to time so maybe he'll appear.

Uh, aren't your hands full already? ;)

Jack

[Paul Piercey]

I built one here in Washington. Sea trials on Puget Sound and then I shipped it to Croatia where I sail it on the Adriatic Sea.

http://209.190.4.227/gallery/albums/userpics/10167/ck17ps.jpg

http://209.190.4.227/gallery/albums/userpics/10167/loading.jpg

There is a lot of information in the forum on Bateau2.com
Link to CK17 posts (http://209.190.4.227/forum/search.php?search_id=73527602&start=0)

Paul

[Don Maurer]

Paul,

It looks to me like the daggerboard is way too far aft. Does the boat experience any lee helm? Nice looking boat otherwise.

[Paul Piercey]

Don,

I had the same reservations about the daggerboard while I was building the boat. I called Jacques (the designer) and discussed it with him. He refered to the placement of the board aft of the center of sail effort as "lead". Due to the hull design and sail plan he had some compelling reasons for the lead. My concern had been lee helm in heavy weather. The only lee helm is in very light air. It will sail under mizzen alone. The large sail and mast can be stepped aft and the boat can be sailed as a cat schooner.

Paul

[pippo]

Here I am. I'm about to transport my CK17-to-be to another construction site (my brother's garage, huge and empty because he's too lazy to put the car in), since mine is simply too small and there's no elbow room to speak of.
This is a very simple boat to build. I've cut all plywood components (hull bottom, sides, frames, benches, cockpit sides, etc) in a few days and literally stitched the whole boat upside down in less then two hours. I've also completed the appendages (kick up rudder and centerboard) and the centerboard case as well.
The plans are very good and complete.
I must admit that I've lost momentum in the last year or so (jazz drumming took the lead in my spare time) so I did nothing on the boat, but reading Paul's and others' comments on how well she sails convinced me to finish it.
Now I've disassembled it and should trasport it to the new "boatyard" in a few days. Epoxy and glass tape are ready.

[ 09-21-2005, 09:25 AM: Message edited by: pippo ]

[Bruce Taylor]

He refered to the placement of the board aft of the center of sail effort as "lead".The combined center of effort for those two sails falls right in the middle of the boat. With the daggerboard removed, the center of lateral plane wd. be a bit less than 10% aft of that mark (as roughly measured on the study plan).

10% lead is a bit skimpy, so my guess is he planted the daggerboard just aft of the hull's CLP to bump up the lead by a percentage point or two. It looks a bit odd, but on paper, at least, it seems about right.

[Thorne]

Nice boat!

I really liked Bateau.com's broken link graphic:

http://www.bateau.com/images/whatthe_200.jpg

How does the "push-up daggerboard" work? -- hard to imagine...

[THX712517]

I'm guessing that the angle on the leading edge of the daggerboard, and the fact that the bottom of the board is angled as well rather than rounded, is meant to push the board up into the case upon impact with some solid surface. I think unless you were hitting something with just the right density, it'd just get stuck and the boat would come to an abrupt stop.

[pippo]

If I remember correctly, the idea has been taken from windsurf daggerboards.
Anyway, let me try to describe the system.
The daggerboard trunk is slightly wider (in the fore and aft direction) than the board itself.
The inner front part of the daggerboard trunk is not vertical, but tilted so that in the event of a grounding the board is allowed to tilt (clockwise rotation if the boat goes to your right). The aft inner part of the trunk is rounded in order to facilitate an upwards movement of the board.