I was about to decide for my L-keel or so called bulb integrated keel when somebady advised to buy some books. So the outcome is that I have some...
Hello Mikko, it´s been a while! All models have 1:20 scale and the longest keel prototype is about 12,5 cm. The process used to produce the...
some more pics from my keels .... I love those 3D printers!
You must really like your boat for even thinking about all these big changes. Wouldn't it be easier just to sell the boat and buy one with a...
What abiut two rudders instead of one? My boat has two short rudders so how the position of them out of the centerline afects the performance? In...
Have you ever tried to compare a sail drive and the traditional axle+propeller (I don't know the names in english)?
Andy, she was built in the 90´s so when I bought her the hull had blisters which required removal, insulation with epoxi and later fairing and...
I fully agree. On top of that it´s far easier to build it with lead than in Iron. Next step is to proceed the strut analysis as the new keel has...
Just in case somebody wants to see it in detail ...
Hi Mikko, it´s been a while! The data in the table came from the Wing32 / Vacanti SW which I think is Ok for Hidrostatics but the L/D...
Consult a "Principles of yacht design" of Larsson and Eliasson. There is a section about towing tanks and carriages. The book is already...
Ok, vakuable advices, thanks. Looks like I will spend the rest of the summer dragginh my little boat... Actually in Brazil is not so difficult to...
*about half the max CL *about the half the stall angle *X times less L/D achievable *slow to reattach once separated there is a risk your...
To keep the foils to scale, and at somewhat reasonable Re, something in the order of 3-4m LWL is necessary ... . I know it is expensive and...
It's 1:20 scaled so lwl is around 0,6m ... What you thing shoulb be a minimun scale?