Cross Indian ocean in 4 meters dinghy sailboat

Try also to look up Rory McDougall's wind vane self steering gear on his Wharram Tiki 21 Cooking Fat, aka Cookie, which is the smallest catamaran that sailed around the world till the current day.

 

See also if you can find some info about Roger Taylor's wind vane self steering gear in the post #26 links.

The below video shows a bit of Roger's wind vane self steering gear on his previous boat in the Jester Challenge 2010...

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P.S.​

BTW, at 2:17, in the red pants, that's Rory McDougall of the previous post, standing next to his Tiki 21 Cookie, with her wind vane self steering gear full in sight.

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Well, basically: good luck!

I consider the big boats. I have an AIS trans-receiver. I also have multiple radios ( trans-receivers ) for nautical channels.
It is probably not much fun to be front of an ocean liner trying to guess which way to go.
NavTex is probably a good idea too, not to mention IPERB. Discrete channel communication, I have yet to learn.
Flare gun with flairs, flags and life west is good, and a leash.

I also have a chart plotter, and compass. I am planning to get a radar system too. I did have a few smaller boats (25' ; 8.5 meter).
Not at once.
One first thing to experience, out there on the big water, is a restroom use. When alone, it is easier.
After a few days on the water, sanitation becomes an issue. A bigger boat can provide solution to that.
I always try to remember to have a way to open the bathroom boor from inside, when the boat is upside down.

Bigger boats handle bigger waves better. A bigger hull has a bigger maximum hull speed.

Sleeping becomes an issue, because to avoid collision, a vessel on the way must maintain a constant lookout.

So; basically; good luck !

 

Len Hiley about SARAH - the Simple And Reliable Automatic Helm - self steering without a wind vane.

Len Hiley and Scallywag II and SARAH in the Jester Atlantic Challenge 2014​

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‘‘ Scallywag II self steering on different points of sail during the Jester Atlantic Challenge 2014. John Letcher's excellent ‘‘Self Steering for sailing craft’’ can be downloaded for free. These and many other methods are described in detail. ’’

Jester Challenge - ---> - Self Steering Free PDF downloads​

1. - John Letcher’s book (262 pages) ‘‘Self steering for sailing craft’’ with and without wind vane gear.

2. - Extract on sheet to tiller self steering (page 108 to 123) from Gerard Dijkstra’s book ‘‘Self steering for Yachts’’

 

From the above link: Rory McDougall's Cookie - ---> - Tech Details

‘‘ Self Steering - OGM MkII wooden wind vane designed by Bill Belcher. ’’

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Wind-Vane Self-Steering: How to Plan and Make Your Own by Bill Belcher

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The above book link directs to Amazon, but I'll guess there are also some cheaper used copies available on the web.

 

@Angélique Thank you very much for all the info and links, i will check it later tonight one by one and i ll get back with questions if any. I appreciate your efforts sharing this links and infos that will take much longer for me to find (if i was ever gonna cross to such info)

@exp30002 Thanks for sharing your experience, and i would love to here more about your experience and your passages (if any), along with your experience i would like to know the boat in which you made the passage(s) so i can relate your experience with the boat. Thank you for good luck, but i'll do my best to do not leave anything in luck.

 

‘Acrohc Australis’ is the smallest boat to have sailed around the world. Setting out from Brisbane, Australia, in June, 1984, and returning in May, 1987, Serge Testa logged a distance of approximately 50,000 kilometres. In all, he spent 500 days at sea, while averaging 100 kilometres a day, i.e., 4.16 kilometres an hour - that’s a speed of 2.246 knots. Now, that’s pretty good for an 11’ 10” boat with even less LWL, perhaps 11’. This aluminium micro-yacht has a 5’ beam and draws 5’; she was designed and built by Serge who learnt metalworking when he lived in France.
Bill's Log: ‘Acrohc Australis’ http://bills-log.blogspot.com.au/2009/11/acrohc-australis.html
Serge moved to Australia, and there he became interested in sailing. He acquired a yacht that had sunk and brought her back to life. He confessed it took him quite a while to teach himself to sail, and in the process, sank the boat! Desperate to do some cruising, but short of funds, he designed and built the 11’ 10” ‘Acrohc Australis’

 

The Trip http://acrohc.com/the-trip/

“If I really wanted to go cruising, why did I need to have a big boat when I could fit everything necessary into a 12 foot boat? The idea became more attractive as I realized that a 12 foot boat was affordable and would leave me with money left over to travel.”

The boat needed to be indestructible in the worst weather; unsinkable if hit by a tanker; have room for one full sized bunk; enough storage for 3-4 months of supplies; be as watertight as possible; sail as fast as possible– and still be only 12 feet

long.The Voyage http://acrohc.com/the-voyage/ watch the movie

 

As someone who would rather pass ideas to you than copy from you (as I've already demonstrated here), my door is always open - any design ideas that you aren't sure about, feel free to run them past me via PMs (although it would be much better if you did it all openly here for all to see as it's highly unlikely that anyone would want to copy your design and try to make the same kind of trip). I want to be sure that what you're building is not only safe, but also reasonably well thought out so that you aren't needlessly throwing away performance (which is important for getting out of danger), or spending much more than necessary on anything, or wasting effort on things that won't work. If anything looks too weak, I'll tell you, and I'll also tell you if it looks far too over-engineered. Where I'm in doubt, I'll recommend that you post openly about specific aspects of the design so that others with the required expertise get a chance to comment.

 

"...but i'll do my best to do not leave anything in luck."

Now. That's better.

 

@David Cooper In the following weeks i ll send more information and plans either here or in pm. Thank you very much for any help. Safety is very important.

Yet to check the self-steering system, i didn't had the time yet. And im very impressed with Acrohc Australis, aluminum is a very good material and almost 4 times lighter than steel, yet 3 times heavier than wood. However aluminum can be hard to work with if you don't know i believe. However im thinking of a aluminum mast. Maybe rudder and keel with bulb.

 

Greetings;
If I may inquire, excuse me please.
What is the reason doing this?
I intend this question not as a provocative, but rather as an informative one.

 

Adventure, i do not want to make any record or so. Yet buying a big sailboat cost a lot and i believe same can be done with a much smaller boat. And yet it is not something that will do for sure, it is the objective and that i want to do it. I ll make the boat, test it and if i evaluate that is reliable for the trip maybe then only i ll do it. It is an ultimate adventure. So again, i do not aim to become a boat designer or something similar and to create any short of patent. Yet im gonna use all of my skills to achieve it.

 

Good luck Nauticals, please keep us posted . .

 

I like that answer. A big boat is more difficult to build, and it is more difficult to keep.
The boat has to be somewhere, when not on the way. Anchoring is an option, mooring
is another one, and docking is one too. A small boat can be trailered.

With sail boats, the bigger is the faster. Something about standing waves under the boat
when moving in the water. Conventionally, big boats are more difficult to handle by one person.
The bigger the boat, the less it is effected by waves.

I have some ideas too about building a boat. My ideas are similar to yours.
I would like to develop an 'aquatic lifestyle'. Have you seen the movie: Life Aquatic (with Steve Zissu)?
My idea would be to build a boat that could be built bigger and bigger, even when it is on the water,
or on the way. To me simplicity is a big deal. Keeping the boat somewhere is a big deal too.
And being a responsible boat owner is also a priority.

May be more later,
Fair winds and following seas;