Thanks tlouth7! At this point, my rig planning is based on spars I already own. The Wharram wingsail can be pretty efficient. A beamier plan helps...
Oops, I bet you meant individual hulls. Kayak seats are typically 20". Give a couple more inches on each side and we get L/B = 20'/2' = 10. The...
Not having planned it to specific dimensions, using the above-stated figures of 21' LOA and 17' beam gives L/B somewhere in the 0.80 to 0.85...
Thanks Rumars! Here is a thread discussing bowsprits. I have not yet read all pages. What's So Bad About the Bowsprit ? - Cruisers & Sailing...
Typical full width bevel scarf. Probably no bowsprit if the hull length carries the sailplan. But I don't know. A bit of searching found no...
No sketches yet. All three hulls about 21' (to scarf from three sheets of plywood) and a beam about 17'. Borrowing a lot of design concepts from...
For my plan, I was wondering about that. But why a bowsprit at all if the hull is long enough? And I am considering a furling tube for a...
Might we summarize the considerations in choosing between adding/lengthening a bowsprit versus building a longer hull? This is for original design...
Those forces are substantial indeed, though the windward hull is essentially moot in this thread. Unless you have crew out to windward, its...
It is an impertinent question in the context of my statement. To the degree the wind blows on the sail, the ama is forced deeper into the water...
I quit reading as soon as you asked where the downward force on an ama comes from.
For a car, the road is static. Your description of the leeward ama at different times as it crosses a wave is excellent, thank you. I can see how...
If the engineers here can see their way to help neophytes like me through the pitfalls of terminology, I appreciate it. I hope I am not...
I wonder if the concept is quite different on a proa, helping the ama to work in both directions?
Well, I don't think we are talking about water in its solid state, when it does flex. If we need to be picky about semantics: At displacement hull...
Discussions like this are fun exercises. I do think this one is fundamentally flawed because it has ignored a factor that I don't see mentioned. A...
Sharpii2: I agree with your assessment, thanks. I think a long shallow profile is the way to go, if I make a tri with all hulls quite narrow....
The Q: Current monos are an O'day 25 with a centerboard within a short keel, and an off-brand 17 with a swing keel. Both with swing rudders. The...
I hope readers might advise me. Sailing monos on our increasingly weedy lake is becoming a hassle, and moving me closer to building a trimaran....
For sale again, SailboatListings.com ad dated 29 September 2019. Both of the photos above are in the current ad, so none probably are current...
