RE: Stop Formula XXL Sails!
Maybe this is your answer, start or join Formula Experience events
Formula Experience Class Rules
subject to ISAF confirmation
(effective 1st April 2005)
4.1 The size and construction of the sail shall be optional
Youth and seniors: 11.0 Sq.m.: A maximum of 7 full width battens are permitted. The number of additional leach battens is free provided the length of each is not more than 25% of the distance from the leach to the luff along the centre line of the batten. A maximum of 3 cambers are permitted.