proceeding based on I-20 specs with a lighter proposed boat weight of 380 -similar class to other existing Formulas.
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<br>Hi Carl. I agree... the beam limiation must be 8 and 1/2 ( I looked at the other box rules)
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<br>-We have lighter boats by 40 LBs -more sail area in the main by 14.5 sq ft than the Euro F-20 ,-it automatically requires large crew to hold this boat down in a breeze.
<br>F-18 leaves off at 330 LB s,-is this a target and logical place to pick up the 20 Class.
<br>330 min , allow 30 dead weight to min. -
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<br>MS.
<br>I would make it 350 min with 30 dead weight to min. The texel rating is for 150 kg crew for both f18 and f20. . IE 330lbs.
<br>My argument ... More sail... more crew weight.
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<br>-What are ideal chute sizes and weights to allow more area.
<br>check 18 specs , and Euro 20 rules.-
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<br>The F18's use 2 square feet differences between their large and small sail area for weight compensation. I suggest we keep that. so... small sail = 24 sq meters = the current inter20 size so make the max chute 26 meters.
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<br>Min boat weight =380 ,-{based on Barry,s 388 weighing his I-20}
<br>Any can add lighter blocks lines hardware and gear to GET the I-20 to this .
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<br>Sounds good.. I believe John P noted that he could build boats at this range as well. One issue that the builders don't want to address is max boat weight.... They don't seem to publish any means + variances. Should the f20 class try to address this in any way. The f18's... have chosen to trust the builder that the boats will be similar. They don't want to weigh boats. What should the f20 class do?
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<br>-Max mainsail =208 sq ft -existing I-20 is 208-_
<br>- 14.5 more than existing iF.
<br>note ,other mfg. may eliminate the lower window area and increase upper main slightly ,--are these types of mods allowed or should there be an exact overlay pattern as the 18s propose .
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<br>I read the F16 rules. They use the term rated sail area which is from the Texel/ISAF rules. This seem to be the correct way to rate sail area.
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<br>-jib 53 spin 270 sq ft -same as I-20 --{no graduated jib sizes as per iF --ONE JIB max. --like the 18s ,-or should we allow mods ,--to smaller self tacking type if desired.
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<br>I know the F16's debated this... seems to me that flexibiltiy should be encouraged. adding a self tacking jib is a plus. We probably need an expert opinion on how to write this one down.
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<br>--Larger spin allowance increase for larger crews ---crews over 360 recieve anadded ??sq ft ,--crews over 390 LB recieve an added ?? sq ft.
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<br>I would consult a sail maker here as well. I think this is an important feature to keep in a formula class. if min is 350... i would increase the spin at weight of 380.
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<br>Longer spin pole alum or c f and c f snuffer allowed , measured from f crossbeam .-{opt for larger chutes --heavier crews }
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<br>I hope that people will weigh in on this promising proposal.
<br>Take Care
<br>Mark<br><br>