IMO :- Glass Fiber masts and Carbon masts will have the same flexure provided all the physical properties are the same. However, the physical properties are totally different. Carbon has a very much higher modulus of elasticity and will therefore never have the same flexure. The carbon mast will be very much stiffer given the same stress loading

Kody

first sail Im recutting for the minis is a Gaastra 4.0 wave sail. because the foot is quite high on this type of sail so I will be adding to the foot instead of cutting stuff off.. Here is the sail with the pocket,wear tapes,excess batten pockets,and the excess re-enforcing from one of the eyes.


next I mark the new luff curve with the template. the new foot angle/position has been marked with rulers.

this sail has a lot of re-enforcing on the foot which has been re-used on the foot of the sail . the new foot has been shaped to give a bit of a "shelf" effect when tensioned on the boom. Here is the finished foot, and includes scraps from other sails. I have a supply of really old (early 1980's) sails which I save for the sail cloth and pocket material.

The unpicked pocket pieces are joined together for the new pocket and resewn. If it is to short I set it 300mm short of the head and 300mm short of the foot.
The new eyelets are put in by myself. I invested in a really good punch set from my local helpful canvas lady who has been a great help from day 1 when I asked her to sew a sail back in 2005.. she also supplies the eyelets parts and when the sail is too thick she will do the smallest jobs at a moments notice.
THANK YOU JACKIE from KALGOORLIE KANVAS.

here is the almost finished sail laid on a 4m blokart sail. notice the slightly different angle on the foot. the luff curve is very similar, with a bit more curve on the head to tension it better

once this sail was recut and resewn I fitted it to the softer of the 2 3 piece masts that I have made. the photo of the sail shows that the luff is still to round for the mast and rigging system. the stuff up is probably due to the original sail having a well rounded roach .With recutting that has helped to alter the luff round .

the sail now has to have the mast pocket removed and the luff recut ,again with the template . you can see just how much the next recut will take off the luff.



the sail has been resewn and tommorow I will fit it back on the yacht. cross your fingers

now thats out of the way, the next step is to build a sail from te ground up. keep watching as I started that little project yesterday