I am working on a small 14 foot plywood tug design. The question becomes how to power the tug? In general I have a mandate to have a small...
I like the idea of trying a metal boat build. But cost is an issue. My question is about welding stainless to carbon steel. The goal is to use...
http://douglaseagleson.blogspot.com I saw the woodenboat show testing self righting of a P.Bolger boat. It is a design from the old days....
Here is a design concept for extending the speed range of a sailing hydrofoil. It just uses a smaller high speed foil about 2 feet below the low...
This is not some big claim of superior design. In fact it slows performance. But the effect is to simplify precision vertical movement of...
This is a topic about life vests. Would anybody be interested in this non-boat design question. It is like boat equipment theory though. My...
I saw this cartoon called Moana. The youtube add is below. https://youtu.be/LKFuXETZUsI It has some interesting design concepts for...
Take a compromise forstay design. Use a 7/8 rig. So have a minimum vertical length of 3 feet of top mast to locate a radar radome mount. Put the...
I was trying to figure out the issues of running an inlet in a sailboat with surf conditions. I already posted my concern about absolute law in...
I have a new box design on my blog. http://douglaseagleson.blogspot.com It is a dual female/male mold, i.e. two parts. It attacks the...
I am to busy to properly filing a patent application. So here is a disclosure that allows all the public to use it. Even I get use protection....
In the old days the yacht club wood hulls were perfect mirror varnish surfaces always. And the reality of moored hulls was painted surfaces of...
I have no experience with broaching except for the warning. It can make a nice medium weight sailboat plane down an inlet wave face. The boat...
I have invented a novel trimaran with folding outhulls. It is only really usable on less than 30 foot main hull lengths. It allows a ten foot...
This is rather just a concept I would like to pursue. The whole world is filled with fishing trawlers that are in many cases used in local...
