83 % rule (or 91% rule same thing) would allow a fair to F18's genaker of 91,075% * 91,075% * 21= 82,946 % * 21 = 17,42 sq. mtr. rounded of to 17.5 sq.mtr.
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<br>I can sell this size using math arguments. I can't do the same for 18 sq.mtr. let alone 21 sq.mtr. I'm also a little bit scared of being accused of using rating system loophole in by the other classes. I don't mind what everybody does under Texel, (Hell, I might well go 21 sq.mtr. myself just to annoy them) but from a official standpoint it is a bad decision.
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<br>Keeping same aspect ratio would make the our case more convincing too.
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<br>max up mast of F18 is 8150 mm
<br>max hieght mastfoot is 120 mm
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<br>so max hoist F18 = 8150+120 = 8270 mm not including place of pole on beam
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<br>91 % rule would give a F16HP hoist of 7532 mm let say 7530 mm from top of forebeam.
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<br>together with a pole of about 91 % of the F18 would give a genaker of 83 % size (17.5 sq.mtr. ) with the same aspect ratio but with a 91 % lufflength still giving the F16HP an advantage. Making the F16HP 100 % equal in every respect to the F18. Excluding topspeed for now for I'm still working o the math for that.
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<br>I know this is difficult to agree upon when we all want maximum performance but lets not forget that we'll need to actract other sailors to this class and F18 equality for less costs with a great solo option might just do that. Going off in hunt for 1 or 2 % percent more performance might scare them off again. I would like to press everybody to think long and hard about this.
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<br>Wouter<br><br>