The idea certainly has potential. I've occasionally wondered on the same lines, either an adjustable trim tab arrangement on the top yard to move...
Just think how much an iceboat would extend your sailing season :) My boat is still a good way off, but the rig testing dinghy is just about...
Hi Terry, Those bottom few metres are the real killer for wind gradient! I'm glad I'm not worrying about them, but I look forward to hearing...
Hi Brian, Thanks for your thoughts and for the links. I had the Tyler paper but the Dijkstra is new to me; Its good to see that they feel...
Thanks for the sketch! Using Al tube construction should be quite straight forward.
Thanks, Yes I've been through the Maltese falcon thread. As you say some good stuff there, although I always end up wanting more detail :p...
You may have a point there :)
Sail Torque Back on my first question: I'm now happy with calculating lift, drag and moment around the quarter chord point - I'm thinking of...
Sail twist calculator Ok, I've put together a calculator for AoA twist with wind gradient. I haven't protected the sheet so feel free to check...
Thanks for the kind words Terry :) Using channel instead of rail on the mast is not a bad idea. I've been wondering for a while which is least...
Except Maltese Falcon :D I'll put a spreadsheet together when I get some time to check what AoA I get up the mast on various headings.
Thanks jehardiman, I had heard the 1/4 chord was used, and it's good to have confirmation that that's for sails as well. I'll see what numbers it...
I am planning to build a variation on a square rig where yards are fixed to the mast for rotation, but raise and lower in tracks on the mast....
Launch March 2011, subject to change, as I'm building myself and I'm not that great at deadlines :) Thanks, I'll have a look around for that...
Thanks for the links. I'm actually building out of Ply, but I've been enjoying the Scrumble project site for a while.
Thanks for all the updates Mas, it's great to see a beautiful boat coming together. For my own info, I was wondering what fibre layup (how many...
Hi John, Thanks for the interest. I'm still working on the design, but I've spent more time building a shed to build boats in than actual...
To cast a little rain on the sunny metal boat fans (a month or six late), a steel or aluminium boat will still sink if you knock the keel off on...
As people have already pointed out hull speed is fact. If you check passage times for any cruising monohull in good tradewind conditions you will...
Excellent summary on catamaran load cases AdHoc. It is worth noting if unstayed masts are to be mounted in the hulls there is an additional...
