jopj

October 26, 2013

BACK AT WORK

I have been away given talks and it has gone well. In Sandviken I got help from small boat builder Martin Stenberg. He is building a chinerunner of his own design close to Enigma. In Germany Henning Saal is building an other Enigma. Henning is helping me to produce electricity. He is converting an electric bicycle engine to a muscle driven generator. Hopefully I can show more about it after he has done further trails. I am grateful for the generous help giving to me by the small boat community.

I have also been talking in Norrköping, the site of The Swedish Transport Agency. Nice and friendly people but some of the laws they try to enforce are ridicules. One such is the EU:s RCD the recreational craft directive. The RCD forbids Small Ocean going boats. When I exhibited my boat in Stockholm I got a note stating that I was forbidden to sell it or use it. I asked them what they were going to do about that. If you sell it we will destroy the boat, they said.
When I lived on the west coast a farmer having a peaceful breakfast was disturbed by shots being fired. Looking out he saw his cows lying dead on the field. His crime. He had not put a plastic earmark on his cattle. This is contemporary Sweden.
But hidden beyond the bureaucratic rules there is always a small cheap functional solution to problems. Before our good bureaucrats act,  I will be beyond the horizon.

Photo abouve me and my boat with paper from the Swedish transport Agency forbidding to use it or sell it.

A child understands that a small boat is more seaworthy than a big one. It is a fact that a small boat designed and built according to the right thinking is safer than a bigger one. Big boats create dangerous forces. Complicated technology is needed to control such forces. The more complicated a boat is the more vulnerable it is, especially in a marine environment. Only in a small, simple, functional, boat does one have absolute control when the sea brings down its ruthless fury.

Photo above small creatures are stronger than big ones an ant can lift more than ten times its own wheight

Photo abouve: Small things are strong: Mary Edson Taylor 1901 at 63 years of age this coragues schoolteacher went down the Niagara falls and survived. Her craft was small and strong, now more than a 100 years later with modern composites we can make even stronger small craft.
Back at work I continue with my mock-ups one after the other, each one an improvement on the previous. It is a creative process similar to writing and when you write you always make a draft and rewrite. Not so in boatbuilding. Why?  Well, we got the Recreational Craft Directive with its bureaucratic rules that puts the builder in a corner where he do not have much alternatives.

Photo abouve part of the saloon.


Photo abouve click once or twice to enlarge. One of the many discarded hatches.

To be continued…

Regards Yrvind




October 12, 2013

EXPERIMENTS AND TALKS

For some time now I have been experimenting with hatches and their locking devices. I have made some progress.
The reason I am so thorough is that I plan to use the same system of hatches and the samen layout of the interior but modified on the next boat. Yrvind Ten has turned out to be a very sympathetic boat so far and I have kind of fallen in love with her. Her only fault is that she is slow. That can problem easily be resolved by keeping the displacement but making her longer. But of course then she would be able to set a world record for shortness.

Being faster she would not need to have so much loading capacity for a given distance. The length displacement increases with the cube so a longer waterline quickly pays dividend. For example increasing her from ten feet to 18 will decrease the displacement length ratio from 868 to 162 (I include a displacing bolted on bathing platform) the lower number the faster boat.

Below are pictures of my experiments. They are to be continued until I am satisfied. Click once or twice to enlarge.

Stainless steel against stainless steel can seeze up so in the pictures below i have pressed aluminum bronze threads into the fitting to reduce friction.

Tuesday 15 of October I will be interviewed on the Swedish national radio P1 at 16:30, world events permitting.

Wednesday 16 of October I will give an public illustrated talk in Trosa at Folkets Hus 19:00

http://trosa.com/event/foredrag-med-sven-yrvind/

Friday 18 October 13:00 I will give a talk at Bergslagens Industridag Göransson Arena in Sandviken

Then it is back to more experiments.

To be continued


Regards Yrvind.




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