... You have to bear in mind that aspect ratio has a significant effect on stall angle. A laser sail (aspect ratio = 4) will stall around 30 degrees angle of ...
So the crab claw of 2 produces its lift at a narrower ranger and with less tndency to stall but stalls before a laser sail of 4 that has a greater range but is...
What it boils down to is that a crab claw is less prone to stall because of oversheeting than a laser sail. Bernard ... laser ... on stall ... of ... stall at ...
That is perfect! I am interested in purchasing plans for strip construction, but I have to talk with my tech director at my work to see if he will let me...
Hi Ben, I'm not sure that I would be able to break away for an actual Watertribe event since they rarely would work out with my teaching schedule. However, I...
Hi Dan,what are you teaching?Lately I took a teaching job too. Do you want to build the boat yourself? For the same weight I'd go for the longest hull(21ft or...
Rhisiart, Have a look at the Vortex proa web pages http://www.cybernautics.com.au/Vproa.html to see my experiments along similar lines to what you are...
Hi Dan,and sure faster and probably prettyer than http://www.nusser-yachtbau.de/Kayakat/index.htm ... a ... to ... tacking ... That ... paddler ... efficiency ...
... too. ... <dstgean@y...> ... is ... fast ... ease ... canoe ... could ... length ... that ... Freestanding ... well ... as ... the ... simple, ... a ... ...
Hello Mal, I'd run across some of your stuff before, though not everything you list here. My problem for the time being is time - not enough free. Back to your...
Rhisiart Gwilym
Rhisiart@...
May 2, 2004 1:31 pm
8651
G'day, Another view on what it takes to win the Watertribe race: Despite the wide range of craft to have previously won the race, it is my opinion that you...
I love "U" ; cause she has the soul needed for the proposed designgoal.I sure wish we had more info as design,weights, testresults about "U". Thanks for...
Hi Rob, Ben and other interested readers, You're probably right that Elementarry is going to be a quick option and looks great doing its thing. The camping...
Hi Dan,I'd love to see your Guillemot Expedition kayak pic, can you post a tinyurl link or do I have to buy the issue? The double canoe Ulua configuration...
G'day, Glad you like U. Amazing (and amusing) how far we have come since then. U, like so many of my boats was tested until I could see what would work and ...
Hi Dan, Maybe somthing like a malibu outrigger but with accomadation in the hull and a different rig for one that could be step and unstep at sea easily. Then...
... By sheeting in hard you pull the twist out of the sail and stall the top part of the sail. Because the yard leans back, stalling the top moves the center...
Hi Rob,thanks a lot for the offer for info,the same offer comes from here,just ask.First a comment:Designfees for good design are the best investment for any...
Thanks to everyone who sent me a mail; between the emails and the posts here on the list I got about 40 locations, and they seem to have tapered off so I guess...
Bernard, I'm sure that you are partly correct, but I think the overall mechanism of sail steering is simpler that. See CrabClawSteering.pdf in Proa_file2/files...
Oh yeah, I knew I forgot to do something.... Ron Badley Halfmoon Bay, British Columbia, Canada Near Sechelt, about 80 miles northwest of Vancouver. RonB....
I don't disagree that boat designers need to make a living, have to put a roof over their heads, and food on the table. Designers earn their keep. I built a...
Hi Mal, Well, maybe I am making too much out of it. In your CrabClawSteering drawing the boom moves out quite a bit to change the moment from negative to...
Sory to see you left the topic to respond only to an irrelevant portion of my posting(the respons to your irrelevant planprice comments). Who the hell asked...
Bernard With my proa sailing from a close reach to beam reach to broad reach. It does seem the boom moves very little. It sems the way I have my sheeting...
Hello, all. I'm looking to get into some hotrod sailboat action and some wood boatbuilding at the same time, perhaps with the Watertribe expedition races as an...
Sail trim and Proa steering as per the "Tradidional" method - Dr David Lewis wrote (in We the Navigators) of the inneficient use of the Crab/claw sails...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
