Dear Windsurfers,
I manufactured my sixth homemade sail. This time I added an additional wing to this sail. Result is one sail two sizes 4.9 m2 or 5.1 m2. Normal sail size is 4.9 m2 however if you assemble the additional wing to this sail, sail becomes 5.1 m2. An additional wing area is 0.2 m2.
Finally, I don't see any important progress in windsurf sail technology since last 20 years except new sail materials. In my new sail I used three extra battens and slots for this wing. To stop the air flow between main sail and additional wing I used CIRT polyester strips. You can see on the photographs black polyester strips. I haven't tested my new sail yet. In July I will test this sail at Aegean Coast I hope this additional wing won't make any surprise to me.
Bye Melih..