jopj

September 28, 2015

ABOUT GERMS AND CONTAMINATION

Some folks worry that I may infect the water in my containers by blowing into them.

My father and grandfather sailed the square riggers. I remember my grand father telling me that they got fresh water by taking one of their boats up a stream and filling it with water. That water contained quite a bit of organic matter. Nowadays civilized countries like Ireland from where I intend to start have water treatment plants that remove organic matter from the water and may even add chlorine. Germs need organic matter to grow. Pure water is only H2O.

After a month or so at sea I will start to collect rainwater. I do not think that rainwater will contain enough organic matter to give my germs anything to grow on.

Also my grandfather said that if the water was contaminated you should wait until it had rotten three times, then it would be fit to drink again. I do not know if modern science agrees.

If however, against all odds, my water should get infected, it can only be infected by my own germs and they will obviously not do me any harm.

I am now back from the Göteborg Book Fair. Hopefully I have sold my manuscript. It will take a few months before the publisher have decided.

I have also bought charts over the approaches to Cape Verde Islands, Uruguay, Good Hope, Tasmania and Southern New Zealand in case I get appendicitis or similar. I hope to stay at sea.

I have been to dentist to check my teeth.

I have been to the MN factory in Ytterby getting more epoxy glassfibre and fillers.

I have been to the Exide battery company in Kungälv to talk about battery’s and everything has gone well so I mow ready to do more pleasant work.

Regards Yrvind.




September 19, 2015

THE PROBLEM WITH NICE WEATHER

When Moitessier December 1968 to February 1969 crossed the South Pacific he had excellent weather. He relied on rain to get water, but he got very little rain so he started to worry. In the end he was alright.

Moitessiers experience is on reason I have decided to increase my water storing capacity. I had 51 liters. Now I decided to add two 24 liter plastic jerrycans getting it up to nearly 100 liters. Unfortunatly my containers vere to big for their intended stovage. See photo below.

However polyethylene gets soft when warm so I poured boiling water in them. See photo below.

That did the trick. Nice and smouthly by force of gravity they sunk to their distination and got a perfect fit. It was satisfying. See photo below.

Next problem was, when at sea, how to transfer the water to a bottle. A pump, I thought was to complicated and cumbersome.

I tried to use my non-smoking lungs. It worked to my satisfaction. See photo below.

Below, the tubes I used. The long tube that goes to the bottom of the container has a weight to sink it.

To be continued…

Regards Yrvind.




September 16, 2015

A NEW MOCKUP

Work with the foreward deckhouse continues. Belov the sides are joined. The brown stoff at the bottom is Tufnaol channels to take the gasket.

After filleting and taping the outside joints the inner edges are given a radieus and is taped, but not before the holes for the windows are cut out.

The edges are not rounded and the deck is not laminated, but it gives an idea of what the finished product will look like.

I decided to upgrade the aft deckhouse so I wisely made a secound mockup and much was gained by that. A bit like an author makes a secound draft.

Symmetry made me get avay with making only only one side. On each side of the foreward end of the deckhouse a ventilator lives. Interference, I say is my biggest problem. Below the deck of the deckhouse is the place of the doradoboxes. They should not interfere with the windows and the windows must be placed very accurately to give the best possible view. The foreward end of the deckhouse slopes a bit down. The dorade channels slope uppward. Water flows downward. This fact helps to separate the the water from the air. The water is collected in a box in the foreward end of the deckhouse. A U-tube lets out water but not air. The air continues backwards where it meets a secound watertrap which also is drained via an U-tube. This Dorade-system has much volume therefore it can swollow much water. Finally the channels passes through the bulkhead to the aft compartment where they go down and traverse the boat.

Becouse I do not have much space I like to keep the ventilation systen in one plane. The trick is to let the air from the starboard ventilater cross at top and the air from the port ventilator cross at the bottom. The pathways is indicated by brown tape.

The diameter of the channels is about 3 cm. Not much you may say, but bigger than my nostrils. This is the heavy weather ventilation systen which I will use when the seas are breaking. Force five and up when the hatches are dogged down. One ventilater takes in air the other lets air out so its a continues air exchange like a birds lung unlike humans who use the same channel for out and in.

Friction in the channels may reduce the airflow to 1 meter per secound, about 2 knots. Still thats gives me 42 liters fresh air a minute enough for an old man resting.

Yes Angélique, when the seas are breaking I will use the safety belt. They not tight so you do not notice them and they do not hinder you getting up.

Next week finds me at the Göteborg Book Fair.

To bee continued…

Regards Yrvind.




September 8, 2015

VARIUS PHOTOS

Progress is good. Most of the epoxy work under deck is now done. I have started with the foreward deckhouse.

Below are some pictures.

First, me in the deckhouse mockup. Its from here I intend to handle sails and leeboard. I will do that running downwind with the two rudders in breaking position. A rope controlling the rudders runs the inside perifimeter of Ex Lex.

This is the size of all windows. Its mineral glass tempered and heat soaked to resist spontanius granulation.

Prebending the Divinycell with weights where the hatch will be. The inside is laminated.

Cutting the panel to shape.

Details done. The aft storage.

The hatches are bolted down.

The above is a better solution than the one I used on late Yrvind Ten wich consisted of a washer on the screw resting on stainless steel.

Detail of washer. One learns.

This time I  am using RG7 Gun Metall to take up the bolt forces. It contains 5 – 7 % lead thus giving very little friction. I could not find material of the right dimension so I bought a bar and sliced it.

Im my bedroom I have laminated in a stainless steel pipe to take the safety belt.

I made several places to fasten the belt. It can be handy to fasten other things to. It do not look beauteiful but it shure is strong.

Fastening poits in the most foreward part of the boat. Part of the anchors and plastic jerrycans can be seen in the background.

To be continued…

Regards Yrvind.




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