The keels will not fall off
Hi here I have glued a piece of composite to a piece of composite with NM-elastic epoxy.
Progressivly I load it with 14 kilo weights untill it is thirteen weights hanging or 182 kilo a keel is 150 kilo. The glued area is 10 X 3 centimeter.
The area of flange on the keel is 3 X two lenghts 150 cm or 300 centimeter times 3 centimeter that is safety factor of 30 times in addition to that there will be 50 screws trough 10 mm epoxy laminate + Divinycell each holding 250 kilo about.Tthat is an adittion of 12 500 kilo or 12 500 + (182X30 ) 5 460 = 18 000 holding force weight 150 or
120 times the strenght needed.
To me a factor of safety of 120 is more than enough.
For more see Yrvind.com
There you can support my project with donations via Pay pal and Swish 0706 200 550
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At 86, Sven Yrvind is still pushing the limits of small-boat design. Discover the philosophy and technical grit behind his 'Exlex' series.
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Mockup – No Ballast, Deckhouse Buoyancy for Self Righting
This Youtube channel is about me Sven Yrvind. I am 87 and a half years old dyslectic solo sailor. I am building a plywood test boat for a Divinycell and NM-epoxy high-latitude cruiser. She will be about 4.5 meter or 14 feet and 9 inches long, the beam 1.36 meter, 4 feet 6 inches. She is a two mas...
The two bulkheads weakly installed.
This Youtube channel is about me Sven Yrvind. I am 87 and a half years old dyslectic solo sailor. I am building a plywood test boat for a Divinycell and NM-epoxy high-latitude cruiser. She will be about 4.5 meter or 14 feet and 9 inches long, the beam 1.36 meter, 4 feet 6 inches. She is a two mas...
The Outer Coaming and Fiberglassing the Inner One.
Sven Yrvind fits the outer spray skirt coaming and laminates fiberglass onto the inner coaming in his workshop, refining his rope attachment setup and filleting the joint defenses.
Starting the Inner of Two Spray Skirt Coamings.
Sven Yrvind works in his workshop cutting and fitting inner and outer spray skirt coamings, detailing kerf measurements and fiberglass reinforcement.
Cutting the Divinycell Bulkheads.
In his Västervik workshop, Sven Yrvind shapes composite bulkheads and constructs rounded hatch coamings with dual spray protection for his compact ocean cruiser, verifying hull symmetry and deck crown alignment.