7.1 The masts of all boats will be tuned to specific measurements which competitors will not be able to adjust during the Championship.
7.2 A maximum of one (1) main, two (2) jibs and two (2) spinnakers will be measured and approved for the Regatta. All sails shall have Official ILCA Royalty Labels. Mainsail and spinnaker numbers shall be the same. Competitor mainsails are required to display the competitor’s country designation.