Just some added clarification to the F-20 design scenario post above, - <br>-All Formula classes are development classes to some extent, -the design variation between mfg., boat Cos. and builders effect boats differently in different wind and sea conditions. <br>- The extent of development allowed in the F-20 class is what we are now defining. -With the goal of equal fair sailing for all and not some hidden advantage that suits our particular needs. -FAIR racing for ALL boats and crews, INCLUDING AS MANY AS POSSIBLE TO BUILD THIS NEW 20 CLASS. <br> Again all formula classes are development classes to some extent; -hope the post above illustrates this. <br> Barry, s 8 mph design with low P C and higher C E {center of Effort, sailplan would be noticeably faster in the light wind conditions it was targeted and designed for than the existing Inter 20. -The I-20 would become faster than the {Barry 8} as the wind increased, --sailing skill AND boat design along with development is part of the Formula racing game. <br> <br>-We are now agreed on the direction of proposing a 20 class largely based on Inter 20 specifications. <br> -The effect of this and problem that I see is that we are now excluding and discouraging existing Formula 20 s from competing equally {class goal } as they have been built for iF rules and specifications of 418 LB min boat weight. <br> Further effected are all existing designs we stated we wished to include in the new 20 class beyond the Fox and other iF 20S that we listed with specifications on this forum, The. -Nacra 6/0 –H-20s –Prindle 19s ,- Mystere , and several other potential racing 20 s, unless they can somehow get their boat weight from av 410 to420 to the 390—380 LB boat weight range and add a sailplan that matches the Inter specs.. <br> <br>-The only viable solution and way we can include existing if20s at 418 Lb. and all other 20 ft catamarans listed now is to allow them added jib and spin sail area as a development design trade off for their existing additional boat weight. <br> <br>-Other Formula classes use trade offs of spin and jib areas for added crew weight, -we have proposed a higher crew weight to eliminate this, -but we can apply this rule equally to heavier existing boats to allow all 20s to compete on an equal fair basis, --The ratio is approx. 1 sq. ft per LB of spin, in a 30 LB difference a standard 30 sq. ft of spin area added to existing and older heavier boats weighing 410 or more. –Jib area increase from standard 53 sq. ft to –60 sq. ft, -with trade offs in area allowed from Max main to equal jib areas for variation in design. <br> <br>-This one added weight to sail area classification within the proposed rules will allow all existing If 20 designs to race on an equal fair basis with the lighter Inters and others, and allow all existing boats we previously listed along with their specifications a way to race equally and fairly within the 20 class rules structure. –Again all Formula classes are developmental to some extent. <br> The advantages of including all in this class are huge; it encourages a race what ya got attitude and provides a means and way for all mfg., boats to race together. -Importantly it allows anyone to purchase an existing 20 or 20 platform, set it up basically the way they think best for racing, and to get involved in a very exciting Formula Class without the large expense of a new Formula specific boat. <br> <br>-beyond this needed correction ,we see 18 HP boats and a class proposed with a boat weight of 286 lBs as opposed to the 390 of the existing F-18 , <br> The new 18 HP cat designs will be much faster and more fun to sail and are less expensive, <br>-Allowing sail area to weight catagories in a broader scope allows all equal length -beam cat designs a way to race fairly together as one LARGE developement Formula Class. <br> <br>-Carl <br> <br>- <br> <br>- <br><br><br>
