Yesterday was a succes in disguise. Luckily I did not succeed in bending the PVC-pipe. Without the setback I would not had this bright Idea that I found today.

Due to interference the ventilation system has to be situated in the sleeping room. Fresh air comes in above the sleeping room is ducted from port side to starboard and vice verse, descends to the floor and is piped through the aft bulkhead to the lunchroom aft which is a wet room.

After my disasterius pipe-bending experiment I put on my thinking cap and realised that the pipe did not have go through the bulkhead at 90°. In fact it would be much better if it did not. That would reduce the resistence as the airstream did not have to be bent so much. It would also save a bit of wheight as the distance would be shorter and also be far easier to produce. I simply bought a ready made bend and cut it.

Pictures below will illustrate.

The cut bend.
A mock up showing the bend penetrating the bulkhead.
Same thing.

Some people say that the diameter of the pipe I use is to small. That it will not allow me to get enough air. I say that the diameter of my nostrils are even finer and the increase of flow is more than linear. For exampel in hemodynamics it is considerd that flow increases with the forth power of the blood vessel. Not directly applicable here but it might be interesting for you readers with an inquiring mind.

I have also been working on the lunch-box below pictures showing me sandpapering the coaming flat using a large sandpaper on a particle board. Particle boards are flat as there is no tension built into them.

Me showing the sandpaper stapled to a piece of particle board. The coaming to my right.
Doing the sandpapering

To be continued…

Regards Yrvind.


I am working with details. One such is trying to bend a PVC-pipe 90° for the ventilation system. To inform myself I search the internet. It did seems that many person was not succesful. Full of confidence I reasoned this does not applay to me becouse I am smarter and I knew a few tricks. First I filled the pipe with sand and copressed it well, then I made a mould to guide the pipe. When the preparations was done I gently put som heat but just on the outside curvature. The result looked very good and I felt justified in being proud of myself as can be seen in the picture below. Click once or twice to enlarge. The lunch-box in the background on my right side with lid on. The hull of Exlex Minor will supply the missing lunch-box side.

Myself proud after having succesfully bent the PVC-pipe.
Unfortunately taking the bend out of the mould I saw that the inner radieus had a kink and the bend was for my purpose and all others useless. However I have not run out of ideas and will be back.

Also more work is being done on the lunch-box. The lunch-box will be situated in the aft part of the boat. Above is a hatch that in breaking seas can let in water. To prevent that water from enter the lunch-box I am making a labyrinth. Below a photo from my sketchbook.

The first sketch of the labyrinth.
The lunch-box with the labyrinth. I am holding the lid in my hand.
The lid will be scruwed down with two M8 scruws as was succesfully done on Exlex and tested during my 40 day voage from Ireland to Madeira earlier this year. It seems such a long time ago but I have not even been back for three months. The 30 mm long bronze nusts will be securely anchored in the lunch-box.

To be continued…

Regards Yrvind


On Exlex I had a diameter 25 mm stainless steel pipe beside the bed to secure my seafety belt to. It was heavy. Exlex Minors middle name is now Light so here I will use a rope saturated with NM-epoxy attatched to Divinycell.

Here I am doing a mock up. Later the thing will be be laminated to give extre reenforcement where needed.

Below pictures.

A 15 mm rope is sawn on to a 20 mm H200 piece of divinycell using my sailmakers palm.
Saturated with NM-epoxy the rope becomes very stiff. Think of a frosen rope but even much more stiff.
This arrangement allows me to tie down the jerrycans and also in breaking seas get a safety belt attached. This is a mock up. The real thing will be reenforced with fibers, carbon fibers I belive.

Using textile instead of metall safes a lot of weight. This is in the interest of speed.

To be continued…

Regards Yrvind.


The stowage in the Captains cabin besides the water also contains the batteries. I have found a size of nearly the same with as the water jugs so now I have filleted the panels in place.

Big deep clamps holds the port panel in place while the fillets cure. Part of one battery can be seen behind the panel to the right of the picture.
Here a mock up of the saloon, the deck and the two aft windows. The windows have a diameter of 20 cm or 8 inches. Headroom is sufficient.
A cardboard mock up of the lunch box center of the picture in brown. Volyme about 45 liters. The picture shows the port one. There will be another one to the starboard side but not so wide.
The beginning of the real lunch box. I do as much as possible of the work on the bench, for convinience and for better results. Now the box is upside down. Doing filliting and tejping work later would have been extremely difficult.

To be continued…

Regards Yrvind.


I have done more mock up, now in the saloon. I now have a pretty good idea of the finished boat. Exlex Minor have turned out very roomy despite being only 4 cm longer and 19 cm vider than Exlex that was indeed very cramped. Exlex Minor have definitely place for two persons friendly persons to cruise long distances a boy and a girl.

Edition Paulsen did 11 of October publish a book titled 100 Marin. Its a selection of famous yachtsmen from the last 150 years including Jules Verne, Bernard Moitessier, Francis Chichester, Jack London, Naomi James plus 94 other equally famous person and me. Its a mystery how I got included, but I am proud to be included in that crowd.

Below are some pictures click on them once or twice to enlarge.

Me in the Captains Cabin flanked by water jugs batteries and other stuff.
The saloon. I am sitting on the anchor box containing anchors chains and rope about 15 cm high. On Exlex port side, to my right is a box containing food 38 cm high. Its counter is 35 cm wide and 54 cm long. On the starbord side is a smaller version. There will be windows aft and on on each side giving  a good 180° vieuw.
There is also a place to sitt on the flour for a secound person or if you just feel like a change.
The book is big and heavy and comes in a box. It is also at 99 € very expensive.
The langueage is French but there is plenty of pictures.
Here is to order.

To be continued…

Regards Yrvind


The main bulkheads are in place. they are now also filleted and taped with carbon fiber +45°/-45°.

Next step is to do mock up of water storage. There is 12  five liter jerry cans. 6 on each side. Empty ones can be moved to leeward. I think I have found some AGM batteries with the same with 19 cm as the jerrycans.

Also in the stern a mock up for a lazarett is made. It will be the place for oilskins, diving flippers and mask. There will also be a snorkel although my lack of teath make the use of it difficult.

Below some pictures.

The six jerrycans on the port side, further aft comes batteries
Aft end below deck is the intended place for the lazarett.
Each container holds full about 5.6 liters of water. Twelv of them gives about 67 liters. Add to that 7 one liter bottles for daily use and it makes about 75 liters. Now in Exlex Minor where I got more space I also plan to have grape fruit oranges and apples as water containers. Fruit have about 90 % water.
Putting carbon tejp on the edges of the panels for the water storage and the lazarette.

To be continued…

Regards Yrvind.



Thanks to the mock up I have been abel to refine Exlex Minor and fix the position of the bulkheads that I have started to fabricate and install.

Below are pictures of the work. Click once or twice to enlarge.

There will be no place aft for a guest. The space is planned for wet gear. This also gives me the possibility to sit lenghtwise and athwartship. The picture shows the mock up of the miniature half bulkhead.
The same miniature bulkhead seen from the side.
Working on the main bulkhead. Here I am tejping the two skins of the sandwich construktion together. There will be a lot of running through this door so edges that can take wear is desirable.
Installing the bulkheads. The fore bulkhead close to the camera have been moved aft 40 cm, the main one in the background have been moved aft 30 cm. Captens cabin 190 cm long is between the two bulkheads. The effect is that the fore cabin is now very roomy. It is 240 cm long.
An unexpected advantage of the new mock up is that it has created a guest cabin in the foreward part of Exlex big enough for a modest size girl. Who knows what magic the future will offer?

To be contained…

Regards Yrvind.


Today I hae started the mock up. As so often happend before my idears when faced with reality had to be modified, luckily to the better. The most surprising was the creating of a revolving door.  Its a semicircel that turns on a horisontal lengthwise axis. I think it has much promis. Also having today spent time inside Exlex Minor I am impressed with all the space.

Below a picture.

The mock up of the two main bulkheads are now in place. Between them is the Captains cabin, aft is the dining room, forward is the forepeak hopefully containing nothing but being a place from wich I can hanel the foresail. The two semicircular doorways can be seen in the ulkheads.

To be continued…

Regards Yrvind


Its a small step for mankind but a huge one for me. I have a hull and I am very happy about that.

Please keep support my project.

Her weight is 182 kilos. Her lenght is 580 cm. Her beam 123 cm, same as Matt Laydens Paradox, a boat a have sailed a lot. I have not copied Matts beam. Its convergent evolution. Concerning the weight I am happy about it and in general with the work so far. Everything looks very promising.

Below 3 pictures.

Exlex Minor is a big enough boat for an old modest man. There is even place for a small girl. Only a show-off has use for a bigger boat.
The boat is weighted for and aft. Here the scale showing the forward reading of 50 kilos.
Adding the numbers. Forward 50 kilos and aft 132 kilos gives a total of 182 kilos. Exlex Minor have a very strong bottom. The Divinycell has a density of 350 kilos a cubic meter, also there is several layers of glass fiber on the bottom for beach landing. I have also done a calculation of the center of gravity by measuring the distance between the two points of weighing.

To be continued…

Regards Yrvind