How sailboats move - sailing theory airfoil and hydrofoil. the solution is to reduce the amount of boat hull in contact with the water, or wetted surface area, to a minimum, by sailboat hull design and by the crew trimming the boat. form resistance.. Key concepts of boat hull design include: the supporting force of the water or "buoyancy" must be greater than the weight of the boat. the thrust from the propulsion system has to overcome the. The hull is the watertight body of a ship or boat. atop the hull may be a deckhouse or some other form of superstructure, like a mast . the line where the hull meets the water surface is called the waterline ..
Stability, fundamentally, is what prevents a boat from being turned over and capsized. whether you are a cruiser or a racer, it is a desirable characteristic. a boat's shape, particularly its transverse hull form, has an enormous impact on how stable it is. this so-called "form stability" is one of. Stability, fundamentally, is what prevents a boat from being turned over and capsized. whether you are a cruiser or a racer, it is a desirable characteristic. a boat's shape, particularly its transverse hull form, has an enormous impact on how stable it is. this so-called "form stability" is one of. This is the theoretical hull speed for a displacement hull (like most sail boats). it is a function of the length of the wave created by the boat as it moves through the water. wave speed is a function of wavelength, longer wavelength is faster..
