my under standing of hull speed is just that there is an energy "hill" to climb when the bow and stern waves meet and interact
traditionally most boats lacked the power to climb that hill and get to the other side
big engines on light boats changed that by lifting them into a plane
beachcats can also get over that hill with their huge sail area but they don't have to plane to do so
some experimentation with rocket bottles on an old hobie 16 in dead flat water would no doubt lead to boat speeds of approaching 100knots would it mean much to us sailors?
