ex-Gladys
Well-known member
used (many moons ago) to sail on a friends dad's Iroquois Mk 1 cat, and the rudders and centreboards would do that. Reckoned to be to do with the shape of the trailing edge... IIRC, if it's too sharp it'll hum,needs to be squared off...
<hr width=100% size=1>Larry Botheras
Anderson 26 "Amber"
<hr width=100% size=1>Larry Botheras
Anderson 26 "Amber"