History of my bow centerboard. starting in the middle of 1980-s

There is less space in a small boat than a big. To find a good place for the centerboard - the centerboard is one way of preventing leeway - I put it in the bow. The rationale was that the combined center of effort of centerboard and rudder was between them proportional to thier areas and angle of attack That way it could be where I liked. The open test boat was very fast indeed and pointed high. 1988 a decked cruising boat was ready for sea trials. The following year I sailed her from France to Ireland to Newfoundland. It was a high latitude crossing against the prewailing westerlies. At one period there was a series of westerly gales. Deeply reefed, the bow centerbord down all the way Bris Amfibie as was her name pointed very high. She slowly fore reached. After eleven days when the sun came out I got a series of heights and did the calculations surprisingly we had came more to the west than when the bad weather started. This way of handling bad weather I realiesed was much superior than heaving to or using a drouge when the destination is to windward. 1974 with the first Bris in the Roaring Forties I had used a drouge when the gale was gone I had lost 150 miles to my destination. So after many years she is here again, the bow centerboard. For more see Yrvind.com There you can support my project via Pay pal and Swish 0706 200 550

There is less space in a small boat than a big.
To find a good place for the centerboard – the centerboard is one way of preventing leeway – I put it in the bow.
The rationale was that the combined center of effort of centerboard and rudder was between them proportional to thier areas and angle of attack
That way it could be where I liked.
The open test boat was very fast indeed and pointed high.
1988 a decked cruising boat was ready for sea trials.
The following year I sailed her from France to Ireland to Newfoundland.
It was a high latitude crossing against the prewailing westerlies.
At one period there was a series of westerly gales. Deeply reefed, the bow centerbord down all the way Bris Amfibie as was her name pointed very high. She slowly fore reached. After eleven days when the sun came out I got a series of heights and did the calculations surprisingly we had came more to the west than when the bad weather started.
This way of handling bad weather I realiesed was much superior than heaving to or using a drouge when the destination is to windward.
1974 with the first Bris in the Roaring Forties I had used a drouge when the gale was gone I had lost 150 miles to my destination.
So after many years she is here again, the bow centerboard.
For more see Yrvind.com
There you can support my project via Pay pal and Swish 0706 200 550

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Mockup – No Ballast, Deckhouse Buoyancy for Self Righting
Sven Yrvind

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.
Sven Yrvind

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

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

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.
Sven Yrvind

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.
Laminating the Two Bulkheads.
Sven Yrvind

Laminating the Two Bulkheads.

Sven Yrvind numbers and lays out fiberglass cloth before laminating two bulkheads with epoxy resin in his Västervik workshop for his 4.5-meter high-latitude cruiser test boat.
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