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June 4, 2025
Sven Yrvind – Page 7
Mowing ballast. The westerly gales south of Cape Horn demands good stability. 84 kilo mowable lead.
The Cape Horn route demands different sailing properties from the eastabout route to NZ first planned. The NZ route was mainly downwind. Downwind routes do not require so much stability nor sails with low induced resistance. The lug sails would have been O...
Ballast boxes for mowing lead, first step.
To mowe the lead as far as possible to the windward side I dig into the 70 mm thick divinycell about 50 mm. That leaves 20 mm. That is plenty for strenght porposes. Yachts 60 feet long usually have 20 mm. As an extra precaution I dubble the carbon fibre. T...
Strings and knots keep the lead securly in ballast boxes, a mock up
Here I show how I am going to keep the lead securely in their boxes. It will be done with strings and knots. It keeps the lead securely still no risk of fatigue. For more see Yrvind.com There you also can support my project with contributions via Pay pal a...
Making hooks to secure the mowing lead
Instead of they eyes in the cupper pipes here is an other way, having hooks made of M6 bolts. In the vice it is not possible to bend more than 90° but by using angle iron I can bend the hooks 180°. It is possible to use flat iron but then it is more tric...
Holes instead of hookes, simpler, lighter, cheaper, and I get the center of gravity lower.
Making better where I can all the time. On each deatil it makes not much difference, but it does have an multipying effect. This way the boat will be much better than if I just followed routine. It is not how quick the boat is build that gives me satisfac...
The sides in the dining room and how to get water seat lead and stowage in different places.
Often there are seweral different requirements for the same space. Here a seat, 45 liters of water, 84 kilos of mowing lead, stowages, eating utensils place for my feets. With the help of the non protuding locker lids I can get most of what I want. Then b...
Extra webbing handle on the six 14 kilo lead mowing weights.
With two handles the 14 kilo lead weights will be more easy to mowe even if a sea is running. Taking time to faciliate operations is a good strategi. The task becomes more easy and are more sooner done then otherwise. Also yesterday evning the Tufnol sheet...
First real step in the lids for the lockers in the sides for the dining room.
Now I have started making the lids for the lockers in the dining room. I have to keep many things in my head at the same time to get everything to function smouthly. Hopefully it will work out. For more see Yrvind.com There you can also support my project ...
Me slowly cutting out the lid with the jigsaw. Both sides of the cut are important.
Now Peter is filming me cutting out the lids. Here I have to be careful as the two created sides is for keeps. However it goes well. For more see Yrvind.com There you can also support my project with donations wia Pay pal and Swish 0706 200 550
Mowing the lead weights.
Here you can see me mowing the lead weights. First I thought I would lean with my chest against a webbing.. Now I realise that using the other arm as a support for my back works just fine. Nothing like the the real thing when finding out how things work. I...
Not much, just preparations.
I have started to build the twelv boxes for the six 14-kilo leadweights. Working in sandwich composite I have to do the panels first. Each side one day. Some people say its quicker to do plywood. I say, not neccesarily so, plywood give you a quick start, b...
When placing the lead boxes in the saloon there is interference. I will do something about it
Tying the lead down with strings through holes worked fine on the bench. As often when in context there is interference. I have to backstep and redoo the thing. Fortunately I got ideas. More the stowage lids are now trimmed. They fit closely. They will not...
More string attachment for the lead boxes and is G 10 good for centerbords.
I have today not done much. Been fiddling around with the lead boxes and talking to people about G 10 or rather G 11 epoxy laminate for centerboard. I like to find out more about it, mostly about G 11 For more see Yrvind.com Ther you can also support my p...
Vector thinking comes to my help doing the string for the lead boxes.
By applying a force crossvise to the strings it multiplys the tension and immobilises the lead. It also immobilises the string and with no movement of the string just tension no wear. Well thats the theory at least it reduceses the wear by a big factor. F...
Peter teaching me how to bend 10 mm cupper pipe.
These little bends, 24 of them I am now going to bend. In my days I have not been doing much pipe bending. In the old days, in the 1950-s we used to put sand in the pipes shake it to compact it and heat it. It worked well. This mesthod is more simple. For ...
G 11 epoxy laminate. To order I made a CB first mock up. Doing so I got a new Idea for the lines.
It was Ocean Capable Small Sailboat who mentioned G10 epoxy laminate. A few years ago a friend of mine Guy Lilljegren had mentioned it also. Being a slow thinker it often takes two or three times for something to starting my thinking. When Guy mentioned I ...
CB progress but still mock up. The idea is to find a simpler and safer line conduit.
Many years ago I was sailing with Peter Duff of Dovekie fame in his leeboard cruiser. He told me that one of the main reasons for leeboards was that you do not have to worry about the centerboard pendent, the rope that rise the CB. I have for many years t...
CB clarifying and bonus better bending
Centerboards are wery good but since 1970 about racing rules penelise them. If I remember so did Dick Carter win the 1969 Fastnet with the centerboard boat Red Roaster. The English got so angry that when the IOR-rule in the 1970-s came centerboard boats wa...
60 years ago 1962 I left Sweden as Captain of my own ship for the first time. Now life is different
60 years ago I left Sweden as Captain of my own ship for the first time. Much have changed since then in some ways to very much better in some ways to the very much worse The boat was wooden now it is sandwich composite. This is a very good change. The sai...
A simple way to remove hardvare sett in epoxy.
Now and then you like to remove a piece of metal hardvare set in epoxy. Heating puts it abouve the Glass Transition Temperature, the polymer melts and changes from an ordered structure to an amorphous structure and becomes soft and then it is easy to remov...
How I try to attach the copper tube bends for the lead boxes, the first steps.
I like to keep the distance between the three layers of the lead weights to the minimum. I put the bendt copper tubes in a sandwich panel with a core of ten millimeter. The copper tubes are also ten millimeter. Good for the minimum distance but difficult t...
One more simple step for the lead boxes and a new string arrangement 5.5 more wear resistant
Peter is on holliday. Petter is an other friend. Petter made todays video, so thanks Petter. I have made a better string arangement. There are now two strings to each piece of lead and the strings diameter is increased from 3 mm to 5 mm. This means that th...
Preparations for the lead boxes and for the sleeping room.
Sandwich construction consists of a core laminated on each of its two sides. That takes time. However time do not neccesarily means work. My strategy is to work on several different parts at the same time. Now is the lead boxes saloon, sleeping and centerb...
Planning water storage for the voyage.
I am aiming for the Pacific. To me Panama and Suez are not attractive. Besides the authorities do not permit small boats. I like open spaces therefore the polar routes north west and north east I will not use, besides its cold for a boat without heating. I...
A brilliant idea from Clément Mougel France a kind of Spanish windlass tensioner for the lead.
Today greated me with an brilliant idea to tension the string to the leads. It came from France, from Clément Mougel. At first I did not understand it. I thought it was going to be too big, but more explanation made it clearer although being a slow thinke...
Visitor: Göran Marström Olympic sailor and composite beveloper and designer M 32 builder Tornado etc
Göran Marström is a technical very gifted sailor. Now and then he drops in and gives advice. Today we talked mostly about the Ljungström rig and its revolving mast. I have been given three Euruope Dingy masts thier sail track beyond repair. With lugsail...
More times spent for making things better.
I say more than two thierds of the time is spent on making the plans better. Among other things the main masts have been moved back 0.5 meters. This gives more space in the fore peak. It also gives more weather healm. Horses for courses. originally I had p...
Routine, boring stuff except the G 11 for the centerboard is now here from Elisolation Laxå.
It takes time to build an ocean going boat even if it small and simple. One part of the side stowage is coming up but before it can be laminated in place the acces and track for the sliding lockers shall be done on the bench. Also start on the port one has...
Sailing close hauled on request.
Common is to have the sails in tandem. This is not neccesarily the best method especially sailing downwind. Me I do not use selfsteering or autopilit not even sheet to tiller, as it simple and cannot go wrong and it is very satisfying watching how the boat...
Routine and one more iteration of the lead boxes.
With hindsight I realise that I should have been smarter, but luckily a step back proved to be a leap forward. When bending the cupper pipes they came out with different inner diameters and I was not prudent enougf to check each bend and so I was kind of s...
Peter is back. Some details on stovage below bed and lead boxes.
Peter is back. Now the videos are getting better. Here is an idea I used on the two previus boats with succes to reduce the beam I screw them down into. Now I have a new improvements on the lids. Tufnol is inserted to take the pressure of the countersunk ...
Adapting the lead weights by hole drilling and doing more cupper pipe bends inserts
As said by attaching the strings to the lead weights I only need half as many strings, more the strings are always out of the way. The first roof on the lead boxes are in place. Many things on my mind made me forget to plug the pipe holes while doing the e...
Weather, temperature and gales near Cape Horn also more on the mowing lead
The US have pilot charts, the UK have routing charts. Their purpose is to help the navigator to plan his passage. The US ones used to be very good. I did study them a lot befere my 1969 sail to Rio de Janeiro. There is no copyright on US govement publicati...
Ratchet and Divinycell is here
Yesterday I was lucky. Just before closing shop two very different items arrived. The ten stainless steel 316 ratchets from Lyft och Surrning. They gave me a very good price but still it was much money for a pensioner. Still nothing is to good for my boat....
History of my bow centerboard. starting in the middle of 1980-s
There is less space in a small boat than a big. To find a good place for the centerboard - the centerboard is one way of preventing leeway - I put it in the bow. The rationale was that the combined center of effort of centerboard and rudder was between the...