Revised 20-20B web page 17 July 2005
Please note that this site is being reactivated after about a year and there are many missing and revised files. I am trying to retain most of the old 20-20 files but I need to cut much of the old pages to be able to fit my allowed web space on my ISP server. The new version is 20-20B.
A model 20 - 20 crossing the Adriatic Sea
You too can build one.
Basic Design
Model " 20 - 20 "
Click
to enlarge thumbnails
Commentary - Discussion of the basic design with more detail comments on the intent and building procedures.
JPG Drawings - Scanned drawings of the basic design with links to related photographs.
Related Photos-- Photographs of detail parts.
Also see " More Photos "
Advanced models--Designs requiring more skills to build and ideas for future development.
Advanced models-2 -- Additional designs for study and consideration.
Technical notes--Sample calculations and theoretical considerations.
Design considerations—Some considerations that apply to designing a good self-steering device.
My Boats
For a little about me take a look at the "My Boats" page which is really not much about self-steering---just a place to put my things.
On advanced page
The vane that started it all mounted on my boat.
The construction is
very different from this basic design but the geometry is the same and both
do a good job steering my boat.
These drawings and this web site are the result of my experience building several different "Wind Machines" as my wife calls them. I am retired and have a lifetime of experimental engineering to draw on. What started as a solution to self-steering on my small boat grew into a hobby. Bad health has put a stop to my needing much in the way of such devices so now I enjoy helping others by providing drawings and help with building them. I have used ideas from other builders and if I have not given each credit it is an unintended error on my part.
I feel as one builder put it -- “the value of your site is to encourage people to design and build their own vanes”. I hope it is helping.
The drawings were made using AutoCad Lt 2000 and the JEPG images were made from scanned letter size prints. The compression is such that some detail may be hard to see. They show well on my 17 inch monitor. If you have trouble viewing them please contact me for larger file sizes that I can send via E-mail.
I would also appreciate any comments you might have relating to to this site or the designs. This effort is pure hobby for me and is non-profit. My only compensation is the satisfaction of sharing my efforts with others and introducing the joys of having a good self-steering system onboard.