The current rule limits the boards to the maximum boat width (2.3m) in the up position with the lower end of the board flush with the underside of the hull. Secondly, in the down position, the limit is the ends of the boards are to be no closer than 1.5m. This obviously limits length and angle of canted boards and length of curved boards. The proposed rule intends to clear up an anomaly in this rule in which curved boards much longer could be used with one up and one down depending on which tack you were on. The tips of the boards would be still 1.5m apart but the longer curved board would be much more likely to produce "flying boat characteristics. The proposed rule is that boards be no closer than .75m to the centreline. There is no proposal to limit foil profiles.

Cheers
John Dowling
AUS9