The case for the tilting biplane rig.
Some people say that it is complicated to tilt a mast.
I say thats not so if the mast is small on a small boat and if it done in simple way.
A freestanding mast stands in a prismatic socket. However if one end of the socket is larger than the other the mast can tilt.
The tilt can be controller by a lashing.
To save energy let the boat do the work, do the lashing when the mast is in the lee.
It is not more difficult or complicated to make on end of the socket bigger than the other.
The only complexity is the lashing.
Every sailor knows, or should know how to do a lashing.
The tilting mast have the advantage of being able to get mor projected sail area and getting the weight of the mast to windward.
These effects are not large but when sailing, spending days after days in steady winds it is for me fun to tinker with the boat and make it perform better.
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Sven Yrvind
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.
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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.