I have a question for you Luiz. But first let me say that I am thoroughly impressed with your creation! Hope you have a great time sailing that beauty. Ok, so in picture 2, it just looks very odd to me seeing the daggerboard so far forward. I am not very familiar with the physics of this, so what are the advantages of having the board more forward or more aft? thanks
~vinny~
Re: Third picture
[Re: Vinny_M]
#130088 01/29/0809:06 PM01/29/0809:06 PM
NICE.That's gorgeous. I've got an old Trailer Tri 720 that I've been working on for awhile. I can't seem to stay ahead of the repair work. After 6 years you must be one happy camper.
"I said, now, I said ,pay attention boy!"
The cure for anything is salt water - sweat, tears, or the sea Isak Dinesen If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most. E. B. White
Re: New toy
[Re: Luiz]
#130090 01/29/0810:07 PM01/29/0810:07 PM
The boards are forward and angled to provide a certain amount of lift for the leeward ama. Not enough to be a true foiler, but enough to keep the bows from stuffing and the ama from generating a lot of drag from being submerged. Check out the video link that was posted, check out the banana boards forward on the amas. Then look at how the lee ama is not submerging - same idea here.
Biggest Congrats on "the end of the beginning" to your relationship with your Catri <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" /> <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />
Here's to many exciting times ahead.
Now for an important question: When are you going to invite me for a ride??
Mike Dobbs Tornado CAN 99 "Full Tilt"
Re: Third picture
[Re: Vinny_M]
#130098 01/30/0805:23 PM01/30/0805:23 PM
The daggerboards (bruce foils, actually) are displaced forward in order to increase dynamic stability. The center of lateral effort is kept in place because only their vertical projection counts, so it is effectively smaller, and the rudder is big. Bill Roberts also did something similar in the ARC 21 and calls it "shared lift".
Luiz, Congratulations indeed! Especially considering the obstacles you have overcome in completing her! I will look forward to more pictures, and reports! Very impressive!
Re: Third picture
[Re: arbo06]
#130102 01/31/0809:55 AM01/31/0809:55 AM