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