No. You may have canted hulls if you want to. Even canted daggerboards and to a larger degree than the A-cats may have.

We are actually more open in this respect than the A-cats.




It appears that the spinnaker boats are not helped as much by canted as the A-cats. All F18 catamaran design's have gone back to non-canted hulls even though it is allowed to cant in the F18 class. From an economic point of view, canted hulls are an unattractive issue.

Personally I have never really seen canted platforms excell in the F18 class or other classes except the A-cats. Certainly not enough to warrant the additional costs. For this reason I don't expect to see it being introduced to the F16's any time soon.

But it is very much allowed. So homebuilders, this may be a field that you can still be unique in.





I think I will ask for a class member to convert the class rules to PDF format. Mark Woudenberg are you up to it ?


Dirk can you read Word 97 files ? If so then I can probably e-mail you the rules.





I just measured the circumference of it on a piece of mast section I have here at home: 340 mm is the circumference.

For the F16 compliance you'll need to multiply the maximum luff length of your mainsail with the halve of the circumference. We are a little different in this then the A-cats that just take the area over the whole mast. We only include the part of the mast that is acting as the leading edge of the sailarea behind it.

I'm guessing you have a flat on the bottom of your mainsail so in your case max luff = 8050 mm by 170 mm = 1.3685 = 1.37 sq. mtr.

This means that your mainsail in actual area (excluding the boltrope in the luff which is inside the mast track) may be 15 - 1.37 sq. mtr. = 13.63 sq. mtr. and not a fraction bigger.

I hope this helps.

Wouter





thanks!