Tensioinng the hatch and flying to Madeira

[@susanlane6663]

Love watching these videos. Gives me hope for the future, I won’t be sailing offshore but sure admire your zest for life ! Greetings from Canada

[@hrhplease9119]

Wow, Absolutely genius & fascinating. Xoxoxo from the U.S.A

[@sheila656]

I watch these videos even though most of the content goes right over my head. I appreciate his process.

[@rockykoast7065]

I was planning on getting old when I would be 80 or 90...but I got a neuropathy and aged about maybe 8 to 10 years over the last couple of years..More power to you Mr Yrvind...

[@DavidD6969]

Thanks for all your videos 👍

[@alansmollen]

Thank you sir Fairwinds to you you are an incredible inspiration

[@ianbell5611]

Ingenious idea. 👍

[@CryptoMiningTurtle]

@1:14 Nice beats!!! Someone needs to clip this and make it into a ocean song or something very nice

[@urchinden]

Thank you for the update! Great work!

[@steendful]

Wow! Looking good... you & the boat 😉. I hope to see a video of you soon getting your vitamin D😁. If the step/storage bench at the opening is not necessary, can you remove it? It would make it easier to climb into the back storage area. Have a great day! Take care and Stay safe. ❤️From Nova Scotia, Canada Eh!

[@SvenYrvindExlex]

Like I said in the video I will remove it. I will move the bulkhead and masts back to get more weather healm. My last three boats had lee healm and that is not the best thing. Now with a prototype I have a better chanche of getting it right.

[@steendful]

@@SvenYrvindExlex I misunderstood. I can't wait. I could watch you all day working. Can't wait till you are getting that Vitamin"D"😁 Take care, till next time.

[@steendful]

I did have a question. Would it be possible to turn that doorway going to the "storage area for extra sleeping bags" the opposite way, so it opens the opposite direction it is now?

[@robertbiegler4815]

I sailed a Paradox for some years, and my understanding is that it gets most of its lateral resistance from its rudder. Matt Layden confirmed that in an article in Small Craft Advisor. Consequently, to go to weather well, Paradox needs enough weather helm to load up the rudder, which only happens once the boat heels enough to move the sail's centre of effort out to lee. Your experience sailing into Le Marin supports that. Chine runners are end plates or fences. The rule of thumb I read is that end plates don't prevent flow from the high to the low pressure side, they reduce it as much as extending the span by the same length. That would suggest that chine runners alone are no more effective than a low aspect ratio keel of the same draft and angle of attack, which fits my experience. I think it fits yours, too, because if chine runners somehow were much more effective, then lee helm shouldn't matter as much as it does. So if the rudder of Paradox does that much work, can the smaller and much shallower rudder of your canoe cruiser provide enough lateral resistance to do the same job?

[@SvenYrvindExlex]

Hi Robert. Thanks. There is some very interesting Venetian traditional boats that gets a lot of their lateral resistance from the rudder. But most, that is more than 50 %? Thats a lot. No one really knows. I also remember the Small craft article some years ago but to my memory Matt said that Paradox lateral resistance was a combination of hull, chinerunner and rudder. Heeling increaces the rudder angle hence the rudder force but it also increases the force from the chinerunners and the hull side. Anyway on the prototype I intend to make the chinerunners removable, bolted on that I can experiment with different ones. Thanks for going to the trouble of informing me. Best regards Yrvind.

[@SvenYrvindExlex]

One more ting. If the rudder is not big enough I will find out and make it bigger.

[@cornishhh]

Am I correct in thinking that both Matt and Phil Bolger believed that to work well chine runners have to be on a hull who's rocker is roughly the same as it's side curvature? That means the hull has to have a fairly narrow beam for it's length.

[@SvenYrvindExlex]

@@cornishhh I do not know but it sounds OK. It was certenly Bolger who gave Matt the idea by using outside chine logs but Bolger newer as far as I know took the idea to make true chinerunners. Intrestingly I had a French friend that had a small local workboat near Marseille built the same way. He wanted to improve the boats performance by taking away the outside chine logs but outher persons warned and told him that the boat would lose windward performance if he did so he let it be. In my case I will change the hull form to have a parrallell mid section like a cargo ship then there be zero curvature in rocker and side curvature. That way it will be easy to move the chinerunner that is shorter than parallell section back and forth to find a good section. This experimenting will be done on the prototype.

[@robertbiegler4815]

@@SvenYrvindExlex I found that issue of Small Craft Advisor. Matt wrote: "It seems a minor internet mythology has grown up around the misconception that chine runners, in themselves, *replace* a centerboard or other conventional foil for leeway resistance. That's not the case, they're a fairly minor part of an integrated system. In this system, my equivalent of the conventional midship foil carries half or less of the total load, what aerodynamicists have called a 'lifting body'". If chine runners and lifting body combined carry half or less of the load, that leaves half or more for the rudder.

[@nixxonnor]

Thank you for a nice video. What was the story of Thomas Gran? I have googled all variants of "thomas gran göteborg landvetter accident" and find nothing of relevance...

[@tuneinchillout]

Amazing use of a small space, I'm intrigued to know where the heads are?

[@markmuller8829]

It's called the bucket n' chuck it method....

[@davidjoelsen3399]

Safe trip Sven

[@juanlynching3807]

I saw the experiment you did with Ex lex turning it upside down with you inside it. I did not see the boat self-right itself in the experiment. If the boat did capsize with you inside, would you be able to push the boat back upright by yourself?

[@cornishhh]

Could you make the bow a similar shape to that of a coble (sometimes called a cobble) under the water? That way you would get some lateral resistance up front. Also you would have a boat which dried out level and had a slightly longer waterline. For those who don't know, cobles are fishing boats used mainly in the north east of England. They're designed for launching off open beaches.

[@SvenYrvindExlex]

Hi cornishhh Coble are very interesting boats. They are designed for beaching and have a deep rudder. Hover in my case one thing I do worry about is broaching too and pitchpooling having once done the latter near Cape Horn in 20 foot double ender. When running down the face of a wave you are meet by a counter current and if the water gets hold of the Cobles deep forefoot she may broach. For running down a wave I think a bow with a lot of boyancy and little lateral are is good. Its always a balance between desirable properties.

[@jfarinacci0329]

thank you

[@wakingbadtarot]

any thoughts on making it out of aluminum ,I am a welder fabricator

[@davidjoelsen3399]

Thank to Mario in Hamburg also!

[@koborkutya7338]

Re hatch tensioning: what kind of line do you use? Plastic-based lines tend to relax under permanent load over time. Might want to have something with wire core?

[@SvenYrvindExlex]

This is just the prototype. Later I intend to use Dynema that has extremely low friction, second only to Teflon. The hatch will only be closed as long as I am working with the sails probably less than 30 minutes. It is very easy to shorten the line.

[@tollertollertoller]

Would there be any value to lee boards or lee daggerboards?

[@SvenYrvindExlex]

Lee boards are fine I tried them 2018 but did not get them to work well. To much resistans. My foalt. Vertikal chinrunners or twin keels serve an other function also. They keep the boats bottom above the ground when on the hard or when drying out. And for me thats important

[@Hindukushsailing]

👍