J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Keel Fairing - Trailing Edge Location

I believe the hydrodynamic reason for "moving" the keel forward is to move the CLR (center of lateral resistance) of the hull forward. J/30s are similar to J/24 in that they suffer from almost no feel in light air. You can do two things, move the CE (center of effort of the sail plan) aft or the CLR forward. Moving the sail plan is usually the easier of the two.