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... Sounds good. and the numbers and designs would be... you can make the hull stable when ... Yeah, but that was the question... but stable enough to fly the...
... the ... is ... So if the hulls are as effecient as they could possibly be. Wouldn't there speed be limited regardless of how much sail you put up. Why add...
... Wouldn't ... I'm not sure I have your question. On the one hand there aren't any hullspeed limits as in conventional theory. If you just mean the drag ...
G'day, Todd With numbers and design you can make the hull stable when flying the ama. Maybe not as stable as if both ama and vaka were in the water but stable...
Hi guys, You are discussing this again, fine :). Look at the section wetted surface. http://kotisivu.mtv3.fi/terho.halme/cpc/Cruising_proa_concepts.htm Terho ...
... Todd Its showing Fench trimaran sailor Olivier de Kersausons 110 foot tri Geronimo. Rob ... lot less. ... is ... or the ... draggier. ... a wider ... float...
-- We seem to be covering some old ground here. The advantages of the shorter ww hull compared to equal length appear to me to be 1.Avoidance of wracking...
... Cool boat, but it would be so much faster (and cheaper) with one and a half fewer hulls and 2 fewer beams. :-) ... For sure, but try sailing a cruising...
Rob, Can you estimate the minimum time to assemble and rig a Harry without folding beams against having folding beams. ALso I am considering putting a 7.5m...
G'day, ... Took me and a helper about 3 hours. The trailer was not ideal, and we learnt a few things we would do differently next time. I daresay you could ...
How strong how light and of what material should the beams be going to the weather hull on a 16' equal L an 8 ' beam ? I know I know its only 16' but thats...
Todd, That is the question that has been preoccupying me. My thoughts are a 4x 2 in clear tight grained oregon. I was also thinking of bolting another 3'6" of...
Hey Robert, You see the the hollow birds mouth beams on the EQL7. That seems like a good reference point on determining how strong they should be. I'd go with...
Todd, I had a good look. Beautiful joinery but I think I 'll go for box section 6mm plywood with 1" thick oregon reinforcing of the flanges and an extra sheet...
As it is such a small boat I would suggest putting on what you think will do and have a go. Ply box section beams are strong, light and easy to build. If you...
G'day, There are a few variables, but basically, 400 gsm uni glass is about $15 per kg, 300 gsm carbon uni is about $150/kgand carbon tow is $30/kg, epoxy is ...
This is my understanding of the problems of reinforcing. The glass can be too flexible to provide much support to the timber before it goes unless you really...
Where can you find more information on building carbon mast and beams? Todd ... about $15 per ... epoxy is ... are ball ... glass, ... especially ... uni's ......
-Todd, I went over the building of Harrigami and the pictures show the methods. The actual dimensions are another matter. The cost of carbon tow is starting to...
G'day, The reason the booms are wood cored, yet masts are solid carbon is that the beams have to be stiffer (deflect less), therefore they are a bigger ...
Makes sense, Hollow carbon stiffening would be a pain to produce and bucky tubes haven't yet come down in price. Thanks, Robert ... that the ... sufficient ......
The recent thunderstorms and being fairly close to some zapped trees got me thinking of how carbon fibre masts with spectra rigging perform around lightning....
Yes you play the odds with this. Based upon what I have read, you are correct, the carbon is a good conductor but the layered effect and the insulating resins...
It is well known in fishing circles that if you have a carbon fishing rod and a storm comes about then you should put it away. Many fisherman have been struck,...
You wrote No one can provide any statistic that lightning rods attract or repel lightning, but there is is plenty of evidence that if struck the rod will...
I saw those docu on "the Discovery Channel" sending up rockets with wire leaders to attract lightning. They have been doing it for about 10 years. Didn't...
You wrote Most of their work has been sponsored by Aeronautical agencies and power companies. Looking for damage/ impact to aircraft/ towers, transmission...
Sorry no work with carbon fiber from natural lightning. The Florida Lightning Research Center has been using military and commercial aircraft (Metal skin)....
