Welsford 100sqft Balanced Lug
This sail was designed by John Welsford for the SCAMP sailboat
he designed for Small Craft Advisor magazine. It's high aspect and
multipul reef points make it a very good choice for a lot of small
Use the same construction technique as is used on Mik Storer's
sails and the 75sqft Balanced
Lug on this site.
Hang your sail so the luff is vertical. The mast should rake
at ~3°. I always put my sails so the Center of Effort
is directly over the Center of Lateral Resistance, but other
people have other ideas.
Note: This design does NOT take 'spar bend' into account,
like I did on the Michalak Balanced Lug. Feel free to add
spar bend in if you'd like.
The leech curve is about an inch deeper than the Michalak
Balanced Lug. This is to mitigate 'leech flutter' issues.
That should do it. As already mentioned, use the same size
patches (adjusted where necessary) as are used on the Michalak
Balanced Lug. Use heavy (5.5oz) tarp, #16 needles, upholstry
or outdoor thread, and high thread tension and you should