Your search results
June 6, 2025
Sven Yrvind – Page 8
Today a big chance I have killed my darling
Today a big change. I have killed my darling. The mizzen is gone. Exlex will not be a canoe yawl. Exlex the sailing canoe is her new name. Why? I did some estimates on lead in this case I use the word in a geometrical sense. That is how far the center of e...
The rudder axis a 50 mm steel pipe mock up. Results exceeding expectations.
Today I bought a 5o mm steel pipe as a mock up for the rudder axis. For a long time I have beeb uneasy about the results. It was a relief that it turned out so well. With the aft end of the boat resting on the rudder axis the draft was only 45 cm or 1foot ...
Some of the reasons why Exlex the sailing canoe is a double ender.
There was a question about why I chose to make a double ender. Nowadays close to every production and amateur boats are not double enders. If so many do not choses double ender is there something wrong with them. They have disadvantages but it is more buro...
The new drouge/anchor system with a tail through a hawse pipe in the sern. A bettering.
https://www.youtube.com/watch?v=HuqTqbZ4bZ4&t=27s The abouve link is to a video I made in Horta harbor Fayal Azores sommer 2021. It is also about the idea of achoring from the stern At about 1 min 20 sekund you can see a boat sneaking about. The boats ...
15 betterments for Exlex the sailing canoe.
To summarize the betterments in the new boat Exlex the sailing canoe so far here is a list of 15 items that will enhance performance and practipality. I will put the text on my website Yrvind.com so that you by reading hopefully will understand it well. On...
Space restrictions have persuade me to give up tiller and to use a rudder quadrant.
A boat with a canoe stern have less space aft and if the boat is decked and the steering is belov deck the tiller cannot swing outwards. However quadrants are interesting the cables come of as tangents from the center line. This means that there are more s...
More about the aft hawse pipe and how to prevent chafe on the rope/chain tail/drouge
I have been lucky with Elisolation in Laxå. The G 11 pipes for the hawse pipe came very quickly and they are superstrong. I persuaded one of the persons in the building, a big guy 110 kilos to hang out on a lever very much longer than the rudder axis on a...
It turned out that once I started to think about the Quadrant betterment was possible. I am glad.
I had a very interesting day and night. Once I started to think of the different configurations of blocks quadrants and drum steering wheels new possibilities turned out. Now after the days work I kind of got a Darling I call her the Butterfly quadrant. Of...
It turned out that the Quadrant thing opened new ways
Here is one twice as strong it it does have two lines. It works just as well with one line is cut
The drumwinch for the hawse pipe tail. A first mock up. Improvements neccesari.
This is a mock up video of the placement of the mock up drum winch for the hawse pipe tail. It needs improvement. I got an idea but I realise that it is best to make a functional drum winch with the right dimensions. I was sitting in a good position but th...
A short video about a third option for steering, steering in close quarters.
The wheel in the cockpit was not comfortabel to use when standing in the cockpit hatch. Here is a way a yoke tiller with steering lines. I have succesfully used steering lines 1989 2007 2011 2018 2020 2021. It will work well as a compliment and it is a si...
Testing the functional drum winch. The result was not was I was hoping for.
Today the epoxy on the functional mock up of the drum winch had cured. I shaped it and screwed the pieces together. I tried several positions. Unfortunatially it took up to much space. Hindsight is 20 20. I only needed 50 - 60 cm more 2 feet. If I had sque...
Ropes and chain and more about the hawse tail.
i now got a good idea of how to deal with the long rope and chain for the hawse tail and how to get space in the cockpit. I will not use a drum winch as was the first plan. There was not space for it and to put it on the deck is not good seamanship. There ...
Flaking is how I will store the rope and chain anchor rode with no drum winch.
Figure 8 flaking is a good way to avoid entanglement of the chain rope anchor rode. I built a device with two pegs on Bris in Marthas Vineyard 1976. It worked well so now with no drum winch I will use that Idea again. Two pegs will keep the rode in place a...
Reflections on using the rudder as lateral area. It have worked well in the past.
Amfibie Bris was the first cruiser using the rudder as lateral area. Earlier I had built an open boat to test the idea and it had worked very well. Later several people built boats using the same principle from drawing I made in collobaration with Rolf Eli...
To ruggidize I am adding twin keels for more stability and better beachlanding.
NOW I ADD TWIN KEELS TO RUGGEDIZE EXLEX Twin keels have been on my mind for a long time in fact since 1980 when I was up in Maine and John Letcher help me to draw a nice twin keeler. I worker on her for three years but things interfered and she never got f...
Solving the Ljungström gooseneck problem or how to attach the boom when the mast is rotating.
The Ljungström rig invented in Sweden by Fredrick Ljungström in 1933 have some very desiriable properties. Foremost is the ease to reef. The freestanding mast is just made to rotate to pull on a rope, like a furling jib. This rotation also makes it possi...
One more darling gets killed in this video, the mowing ballast.
Doing some volyme calculations on the bilge keels I realised that there can be a lot of low weight in them. That will increase stabilite a lot. I also realised that with bilge keels the mowing ballast was now less important. To keep things simple I am elim...
The importance of CB & bilge keels. Because a rised CB gives trouble free stable downwind sailing
Weather helm is important when sailing into the wind. But most cruisers avoid sailing to windward. When sailing downwind weather helm is a pain. By with my bow centerboard rised I get lee helm and a boat that is stable sailing downwind. The use of my bilge...
A self tailing winch for warping, warping me up a beach or waring afloat after I run aground.
This Andersen 28 self tailing winch shall give 28 thimes the force. I do not know how much force I still got in my arm 20 maybe 30 kilos. That times 28 is something like 700 kilos. With the longer lever 800 - 900 kilos. Using a block 1700 kilos. Then in th...
Duplex stainless steel. Very corrosion resistant very strong and magnetic in this application good.
Across the street, I am lucky, Grönitz do buiseness in steel. Today I found duplex stainless steel. I was looking for something else a weight that drags the chain through the PVC lined hawse pipe but luck favors the prepared mind. Below is somthing about...
Adapting to changes of route, less water, masts mowing aft.
The change of route from NZ to Chile and cruising northern Patagonia reducing needed food from 180 to 100 days and making bilge keels neccecites and permittes many changes. Now I need only 100 hundred liter water. My green plastic can holds 5.5 liters. 6 w...
How to simplify a problem. Here tracks for the sliding hatches.
To design and build an ocean going boat is a complex problem. By dividing the problem into smaller and smaller parts it becomes simpler and simpler until in it is straight forword. A curved line is more complicated than a stright line. But every time you s...
Unlearning and retinking. The plan was to sail to NZ, but the Cape Horn route needs rethinking.
The change of route from NZ to doubling Cape Horn have left much hidden residue. I have to be eagle eyedness is needed to detect it. Luckily last night I got the idea to move the water under the seat. I was lucky that previus to that I had narroved the bed...
A rough provisional estimation of the itinerary for my Cape Horn doubling.
Doubling the Horn Provisional itinerary Doubling the Horn entails sailing nonstop from a point above the 50th parallel in the Atlantic, down around the Horn and back to a point above the 50th parallel in the Pacific. Only this near 1,000-mile passage i...
My landlords kindly sponsors part of my rent for 30 months. A big worry gone for 2 1/2 years. Luck.
Ekonomy gives more problems than all storms together. Now thanks to the landlords of my workshop the rent for two and a half year is payed. If I have no money for the boatbuilding there is always something on the boat I can improve that do not need money. ...
Preparing for installing the longitudinal sides in bedroom and dining room. New NM epoxy.
To make a perfect fit I will inject NM-epoxy between the fillets as done before. Now the groove is much longer so I am getting nervous that the epoxy will cure before it reached all the way. Now with the NM-injectrion epoxy it will be better. Its curing ti...
Today I visited Lammhults foundry. Reasoin is I hope they can make my bilge keels in bronze.
I go for broke becouse only the best is good enough for my boat. Bronze keels are antifouling because they are 90 % cupper. Bronze is expensive but it is also strong and resiliant. It feels good to know that will Exlex be bumping on the ground with a ebbin...
Recycling bilge keels from Yrvind Ten. Hard work but much saved.
2015 about that time I realised that I could not be happy with Yrvind Ten so after about three years I scrapped her. The bronze bilge keels I saved for a time they might come in handy. Now is that time but they will be cast into a different shape and more ...
The two old bilge keels are now klean after brutal work. They are ready to be reshaped.
After two days of brutal work the old bilge keels are now ready to be reeshaped. Mikael at Lammhults Gjuteri is going to calculate the weights if keels with different wall thicknesses. The front and bottom are going to be thicker for strenght. I aim at 12...
Progress has no price. Unlearn and rethink. I am killing an other darling. The centerboard is gone.
The bilge keels gets quite a lot of surface. They will I think be big enough to create enough lateral resistance. According to the book, 3.5 percent of the sail area is normal. With my bilge keels I can get twice that area. The problem is to create lee hel...
Plugging the centerboard hole. I begin with the Divinycell. I thank everyone for giving keel advice
I have started to plug the hole I made for the centerboard. I started to fill the hole with Divinycell. Next I grind it smoth and even then I laminate on top. That done, next step is to turn the boat upside down. To smoth the outside and laminate it. There...
Laminating the place where the CB was. Also getting ideas of the mizzen mast.
Today I have been making the centerboard plug made of Divinycell smoth and laminated it with carbon fibre. A simple step. Also I have been thinking about the mizzen mast. I am quite pleased with the idea of the modified Ljungström rig. I am considering it...
Turning Exlex upside down to make a pattern for the bilge keels and to plug the centerboard hole.
Now I have turned Exlex upside down to plug the hole where the centerboard should have been. Also to design and make patterns for the bilge keels. I started to build Bris 1971 and sailed her in the North Atlantic and South Atlantic, that is by definition ...
Modifying the modifiyed Ljungström rig with a J-sprit to the vertical club.
One thing leads to an other.The gone centerboard replaced by bilge keels needed a mizzen to give her weather helm when so desired. The problem back there with the double ender was sheeting. At first I was back to the balanced lug sail for the mizzen. The b...