sailplan - Đ Frank Ellinghaus -
P O S T Frank
H O M E
Bootsbau Index DEUTSCH boatbuilding index ENGLISH
L I N K S ENGLISH

building the hull Accessories The "sailplan" "taping" the sail launcher


The Sailplan

This is the sailplan of my thirdīs selfmade sail on the V12 sailing dinghy. I am happy with it now, though there are thoughts of adding a small jib. The first sail (some sort of wingsail) was an experiment I better should not speak much about, only about the lesson I learned: Stick with the sort of rig, the boat was designed for.

The second sail (now as from the boat designer assigned a sprit sail) was already useable but it was a bit hard, to navigate. Tacking was really hard, the boat had problems to get through the wind. You can see this sail on my homepage.

The third and to this date last sail became bigger and itīs center of effort moved a bit backwards so she got a slight weather helm and now is able to tack without problems.
new

Finding the right balance is possible for a beginner. Here a quote out of Jim Michalakīs article "Sail Area Math".

"This balance problem is actually one of the few things about sail rigs that is not arbitrary. The type of rig and its area are pretty arbitrary depending on how fast you want to go, how much you weigh, etc. But balance is quite important and is one of the areas where backyard boaters get into trouble, sometimes changing the boat or rig with no thought of balance. So before you go doing that you should do a little homework. This essay will tell you how to figure sail area and find the centroid."

I used Jimīs method to find the sails center of effort though I didnīt calculate as much since using mm-paper and simply guess-counted the squares to get the sailīs area.

self designed sailplan for my V12 sailing dinghy



The Rig for my 3rd sail.

The Rig - drawingget it bigger


This recommendable books helped me to get some understanding:
"Sails the way they work and how to make them" Derek Harvey, Sheridan House,
"Understanding Rigs and Rigging" Richard Henderson, International Marine,
"The Sailmakerīs Apprentice" Emiliano Marino, International Marine.


building the hull Accessories The "sailplan" "taping" the sail launcher
P O S T Frank
H O M E
Bootsbau Index DEUTSCH boatbuilding index ENGLISH
L I N K S ENGLISH