Bronze screws for the bronze keel for compatibility
I now have good silicon bronze screws for the tin bronze keels. There is no galvanic difference between tin bronze and silicon bronze. They are compatible.
Also the bronze screws are twice as long as the stainless steel screw I use for the test. In fact it was 10 weights of 14 kilo it took to load the screw to failure. Now the screw is twice as long it will be set in a much thicker laminate. For the test I had not more than 3 layers might even be less. For the real thing it is going to be more than 12 layers.
Also for each screw I am going to create a small cavity and fill it with NM infusion epoxy spreading out the load and gluing them to the 70 mm thick Divinycell.
There will 100 screws for the two keels. I estimate that there will be more than 25 tons to failure due to the screws in addition to this is the elastic NM epoxy. Guess is that it will add even more strenght.
I do not worry.
For more see Yrvind. com
There you can also support my project via Pay pal and Swish 0706 200 550
Sven Yrvind
Hi My name is Sven Yrvind. I design, build and cruise small boats. 1962 I left Sweden in 15 feet converted Blekingseka. I soon found out that there was room for improvement. To understand the basic I began to study mathematics and engenering. 1968 I sailed to England via many contries in a converted 13 feet rowing boat. People told me I be more happy on a bigger boat. November that year I found a wreck an old steam launch build 1885 I converted her to a staysail schooner and sailed her to Rio de Janeiro. That voyage advised me that a bigger boat do not bring happiness, happiness is an inside thing. I designed a 6 meter doubble ender built her in my mother basement. Tried to sail around Cape Horn with her but was capsized and pitchpoled. Later I built an 5.9 meter boat in her I rounded Cape Horn in the southern winter June 1980. I have continued to design, build, and cruise small boats often in high latitudes. Please support me on my donation button on my site yrvind.com
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Sven Yrvind Lastest Videos
Showing 1-6 of 1529 results
6 Aug 2025 Filling gaps with upside down boat
This Youtube channel is about me Sven Yrvind. I am86 years 3 month old dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude canoe cruiser of my own design for a sail to Dunedin in NZ. There I have been promis...
5 Aug 2025 Trying the latches and hooks
This Youtube channel is about me Sven Yrvind. I am86 years 3 month old dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude canoe cruiser of my own design for a sail to Dunedin in NZ. There I have been promis...
4 Aug 2025 8 Hooks for Hatch Latches
This Youtube channel is about me Sven Yrvind. I am86 years 3 month old dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude canoe cruiser of my own design for a sail to Dunedin in NZ. There I have been promis...
3 Aug 2025 Ohio small boat sailors
This Youtube channel is about me Sven Yrvind. I am86 years 3 month old dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude canoe cruiser of my own design for a sail to Dunedin in NZ. There I have been promis...
2 Aug 2025 The importance of a life devoted to a purpose.
This Youtube channel is about me Sven Yrvind. I am86 years 3 month old dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude canoe cruiser of my own design for a sail to Dunedin in NZ. There I have been promis...
1 Aug 2025 Starting support for the latches
This Youtube channel is about me Sven Yrvind. I am86 years 3 month old dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude canoe cruiser of my own design for a sail to Dunedin in NZ. There I have been promis...
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