Twin keels in the outside skin, good idea or unsafe ?
In the comments some asked how I intended to attach the twin keels.
1986 I buildt my first boat of Divinycell and NM-epoxy.
She had a bow centerboard and a 150 kilo bronze shallow keel.
she was 4.8 meter long 15 feet. I sailed her from France to Ireland and then to Newfoundland.
I had screwed and glued the bronze keel to the outer laminate.
Many people were sceptical not only to my planned route but also to screwing the keel to the outside laminate.
Contemporary dogma then as now is to use keelbolts that traverse the hull to frames or ribs.
My method is much safer.
The engenering principle in structures is to spread out the load as much as possible.
Keelbolts do the opposite they concentrate the load bring it inside the boat then they try to spread it out with the helps of frames again.
My method is safer and more direct.
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
2 Nov 2025 Aft mast adaption
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
1 Nov 2025 Removing stubborn grommets
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
31 Oct 2025 Making the hanging oar self aligning
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
30 Oct 2025 Good progress
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
29 Oct 2025 Mast in position
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
28 Oct 2025 Boom progress
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
27 Oct 2025 More doing mock up full scale
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
26 Oct 2025 Small scale mockup works
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
25 Oct 2025 In boom furling and rain collector experiments
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
24 Oct 2025 Visiting Hamel Sails Karlshamn
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
23 Oct 2025 More work on port swimladder
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 6 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
22 Oct 2025 Thesis antithesis, synthesis A creative journey
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
21 Oct 2025 Converting bow mastholder to superstrong bollard
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
20 Oct 2025 Work on swim ladder
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
19 Oct 2025 Thinking about water collection, furling and Matts Paradox
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
18 Oct 2025 A long drive for a good thing
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
17 Oct 2025 Aft port side arranged
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
16 Oct 2025 A place for 6 kilo anchor near land
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
15 Oct 2025 Port grab rail
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
14 Oct 2025 Beam 1 37 cm Weight 359 kilo
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
13 Oct 2025 Starting the grabbrail, starbord side
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
12 Oct 2025 The 5 window frames
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
11 Oct 2025 Deck space aft is now added 1
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
10 Oct 2025 Starboard side rubb rail
This Youtube channel is about my little shallow draft boats. They are designed for a simple life and high latitude sailing. I am86 years 5 month old. A dyslectic solo sailor. I am adapting a modest size 30 year old 17 feet, 5.3 meter long high latitude can...
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