Sven Yrvind – Page 55

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After experimenting for some 3 months Yrvind is now back in production.
Sven Yrvind
After experimenting for some 3 months Yrvind is now back in production.
I have been experimenting for maybee 3 months or so. During that time much wothwhile development have been done. The modified Ljungström rig and the twin keels will be great improvements. The Ljungström rig promis to make the boat more weatherly. The twi...
  • Mar 29, 2022
  • Language: EN
  • Play Time: 00:01:11
The force needed to break my darling.
Sven Yrvind
The force needed to break my darling.
Peter is back. Here he is helping me to demonstrate how strong my darling was. Was because she is no more. I have decided that the bulkhead hatches take up to much space. A video from 22 January show me getting into the fore compartment with a Center board...
  • Mar 28, 2022
  • Language: EN
  • Play Time: 00:09:08
The pattern seams to fit on port and starboard. Stronger flange and the boat is back on even keel
Sven Yrvind
The pattern seams to fit on port and starboard. Stronger flange and the boat is back on even keel
I did put the keel in the middle when adding the flange. The reason was to get one pattern for port and starboard. The middle of the boat would be a compromise. That way I will only have to adopt a little to each side to make a good fit to the hull. I had ...
  • Mar 27, 2022
  • Language: EN
  • Play Time: 00:04:17
Getting the flange and keel pattern together. Gluing and fillets. The result not excactly straight.
Sven Yrvind
Getting the flange and keel pattern together. Gluing and fillets. The result not excactly straight.
Now the keel pattern is on the flange. When done I noticed that the keel is not excactly straight. I have to live with that. Comforting myself that boats do not sail stright and that I am human. Anyway tomorrow I can take the mould of the hull and turn the...
  • Mar 26, 2022
  • Language: EN
  • Play Time: 00:01:07
Grid scored Divinycel I use to take of the shape of the hull to use as a flange for the keels
Sven Yrvind
Grid scored Divinycel I use to take of the shape of the hull to use as a flange for the keels
Diab makes grid scored Divinycell. It is Divinycell sheets cut into tiny squares glued toa matt. They can thuse bend into 3-dimensions. If you lay them on the hull and apply epoxy that will freese them into position. That done you have the shape of the hul...
  • Mar 25, 2022
  • Language: EN
  • Play Time: 00:02:09
Only fairing the pattern today.
Sven Yrvind
Only fairing the pattern today.
Today I did a bit of fairing on the keel pattern. I used a new product from the auto industi. It cures in only 15 minutes. I am used to 24 hours curing time. The time to my disposal including cleaning the tools. It was a start. I do more tomorrow. I am tir...
  • Mar 24, 2022
  • Language: EN
  • Play Time: 00:01:13
Shaping the keel pattern.
Sven Yrvind
Shaping the keel pattern.
The six 4 cm Divinycell pieces are now glued together with NM-epoxy. Time for shaping. This is dine by eye and a good thing is if the keels can be symmetrical that the boat do not sail in a circel. To make work more easy I made a holder for the pattern. No...
  • Mar 23, 2022
  • Language: EN
  • Play Time: 00:02:09
Saving work when making the pattern for the foundry. One template for the different sections.
Sven Yrvind
Saving work when making the pattern for the foundry. One template for the different sections.
It takes six cut outs of 4 cm to build up 24 cm pattern. They are all of different lengt as the leading edge slopes 45° But by dividing the template into fractions and moving it bit by bit I can use the template for all the six pices even as they are of d...
  • Mar 22, 2022
  • Language: EN
  • Play Time: 00:02:31
A better model of the rigging. The rig now have vertical battens despite a lot of hesitation.
Sven Yrvind
A better model of the rigging. The rig now have vertical battens despite a lot of hesitation.
After much hesitaion and apprehension I now go for vertiacal battens, two in each sail. This allows me to reduce the height of the mast to 2.2 meter freestanding. The sail area is 3.24 square meter. Small things attract small forces. The battens therfore w...
  • Mar 21, 2022
  • Language: EN
  • Play Time: 00:02:46
Designing and cutting sections for the bilge keels.
Sven Yrvind
Designing and cutting sections for the bilge keels.
Most builders use NACA sections for keels. Not me. Bescause NACA sections are made for airplanes and the NACA sections have infinite aspect ratio far from my bilge keels that have a cord of 1.5 meter and a lenght of 0.25 meter that is an aspect ratio of 0....
  • Mar 20, 2022
  • Language: EN
  • Play Time: 00:04:29
Bilge keels mock up and dimensions.
Sven Yrvind
Bilge keels mock up and dimensions.
A bit more work on the rigging on the model then I will start to do the patterns for the bilge keels. Many things have to be considered. Like their position in relation to the sails. As it is free standing masts they have to be near the bulkheads. I like ...
  • Mar 19, 2022
  • Language: EN
  • Play Time: 00:05:04
Modifying the modifiyed Ljungström rig with a J-sprit to the vertical club.
Sven Yrvind
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...
  • Mar 18, 2022
  • Language: EN
  • Play Time: 00:04:02
Turning Exlex upside down to make a pattern for the bilge keels and to plug the centerboard hole.
Sven Yrvind
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 ...
  • Mar 17, 2022
  • Language: EN
  • Play Time: 00:02:44
Laminating the place where the CB was. Also getting ideas of the mizzen mast.
Sven Yrvind
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...
  • Mar 16, 2022
  • Language: EN
  • Play Time: 00:01:02
Plugging the centerboard hole. I begin with the Divinycell. I thank everyone for giving keel advice
Sven Yrvind
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...
  • Mar 15, 2022
  • Language: EN
  • Play Time: 00:02:48
Progress has no price. Unlearn and rethink. I am killing an other darling. The centerboard is gone.
Sven Yrvind
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...
  • Mar 14, 2022
  • Language: EN
  • Play Time: 00:04:17
The two old bilge keels are now klean after brutal work. They are ready to be reshaped.
Sven Yrvind
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...
  • Mar 13, 2022
  • Language: EN
  • Play Time: 00:01:56
Recycling bilge keels from Yrvind Ten. Hard work but much saved.
Sven Yrvind
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 ...
  • Mar 12, 2022
  • Language: EN
  • Play Time: 00:02:10
Today I visited Lammhults foundry. Reasoin is I hope they can make my bilge keels in bronze.
Sven Yrvind
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...
  • Mar 11, 2022
  • Language: EN
  • Play Time: 00:01:11
Preparing for installing the longitudinal sides in bedroom and dining room. New NM epoxy.
Sven Yrvind
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...
  • Mar 10, 2022
  • Language: EN
  • Play Time: 00:01:46
My landlords kindly sponsors part of my rent for 30 months. A big worry gone for 2 1/2 years. Luck.
Sven Yrvind
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. ...
  • Mar 09, 2022
  • Language: EN
  • Play Time: 00:02:51
A rough provisional estimation of the itinerary for my Cape Horn doubling.
Sven Yrvind
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...
  • Mar 08, 2022
  • Language: EN
  • Play Time: 00:07:54
Unlearning and retinking. The plan was to sail to NZ, but the Cape Horn route needs rethinking.
Sven Yrvind
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...
  • Mar 07, 2022
  • Language: EN
  • Play Time: 00:02:36
How to simplify a problem. Here tracks for the sliding hatches.
Sven Yrvind
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...
  • Mar 06, 2022
  • Language: EN
  • Play Time: 00:03:09

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