Basics -The general philosophy is to make them as simple and inclusive as possible ,--Once started rule amendments and additions may be made by the majority vote of class members .



OPEN FORMULA 20 CLASS



For catsailors of good will to race together for the enjoyment of the sport in the spirit of rule #2 of fair sailing under ISAF rules –To compete within recognized principles of sportsmanship and fair play.



Intent -.

To race 20-ft catamarans of various design features equally on a first across the finish line wins basis, in buoys and distance racing.



Basic specifications - OPEN FORMULA 20 .



LENGTH –20 ft one inch max. —Stern to bow meas.

BEAM - 8.5 ft –max.hull point meas.

WEIGHT –two categories of boat wgt. –380 Lb. and above

-410 Lb. and above

-Definition boat weights –boat sails and all att gear fully rigged

Boats may add permanently fixed gear and floatation to meet min.

Corrector weights will also be allowed for boats under 380 total.

SAIL AREA –two corresponding categories

380 min boat wgt –MAINSAIL =208 sq. ft inc. mast --53 sq. ft jib +274 sq. ft spin

410 min.boat weight MAINSAIL =215 sq. ft – 55 sq. ft jib + 290 sq. ft spin . Increases of 7 sq. ft in main –2 in jib and 16 sq. ft in spin area in 30-LB boat wgt differential.



Sail area may be traded off from main to jib of equal sq. ft to allow modification and design variation of sail plan. Area from main TO jib only.

All measurements per ISAF measurement rules, --see diagrams and instruction.

Sailmakers and measurers to list sq. ft in 2 inch red numerals at the tack of each sail next to the sailmakers logo. -Racing will be on the honor system, but any boat may be challenged and checked along with the protesting party also being checked for weight and sail area compliance. Those not in compliance will be DSQ for those races.

Also see rule #2 . ISAF rules .



CREW –One or more may be crew. -All must be capable of righting from a capsize.

-CREW WEIGHT –-A class min of 325 Lb., one half of weight below may be carried by lighter teams to meet min req.-Example –a 305 team may carry 10 Lb s to meet min.

Wgt based on teams wearing standard swim apparel and shirt.All teams are responcible for maintaining min crew wgt.



-MASTS –May be of alum. Or carbon fiber in standard section tapered or uniform and a Max 32 ft length. -Standard wire rigging only, but attachment points and tang locations are open, trap wires and adjustments are also open to development.



SPIN POLES –a MAX 13 FT. length may be used made of any material with snuffer configuration of any type.



-