Wouter,
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<br>I'd like to see as little restrictions as possible, but still trying to avoid making the class too expensive.
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<br>Beam: max. 2.5 mtr;
<br>Almost everywhere trailarable, and not a real limit.
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<br>Carbon mast: allowed;
<br>For ease of righting, handling on the beach. About cost, I think if we set the minimum total weight not too low, anyone can still be competitive, as taipan's with aluminium mast's are already quite light. It just helps to get more different boats into the class. (also the ones who can't achieve the min. weight with an aluminium mast)
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<br>Spi: fixed max sail area between 17 and 21 m^2 (21 is max. according texel rating rule)
<br>I'd like also see a fixed luff length, to be calculated but:
<br>Make it as long as possible, just avoid the extremes, I'm a bit afraid of "masthead" spi's (more prone to breakage?), or say that the attachment of the spi must be at least 0.5 mtr down the top of the mast.
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<br>Pole length: Like Formula18/Isaf rating/Texel rating: may not be longer than the longest distance between the fixing point on mast or mastbeam and the theoretical uttermost end of the boat, + 80 cm
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<br>Minimum weight (2-up): 105 or 110 kg (including spi)
<br>Although I like light boats, I think it's not reasonable to go lower than this; it would make all existing boats already obsolete.
<br>For example:
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<br>The Taipan is about 105kg, add 6 kg for the spi (it won't be much less) and it's 111 kg.
<br>The Stealth: 109 kg + 6kg= 115 kg
<br>Bim16 110kg (measurement in Holland) + 6kg =116kg
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<br>And these are already the lightest boats around.
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<br>Maximum length: 5.03m (this just includes the stealth)
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<br>Sail area:
<br>For what kind of calculating for the Jib; I'll leave it up to you, but if you want to calculate, I think it's better to take the (max) luff lengths for main and jib, and not set a max mast length.
<br>I also like the idea to take a "rated" sail area; this also limits the need for a very high aspect-ratio sail (and thus a very long mast)
<br>This formula's are the same in Isaf and Texel rating, and are public, so everyone can see what the effects are.
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<br>Geert
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