Patent ID: 6739925
Filing Date: 2004-05-25
Classification: B63B,Y02T

Abstract:
A hydrodynamic device to enhance a forward thrust of a recreational water vessel to which said hydrodynamic device is attached, said hydrodynamic device comprising a channel member for disrupting a flow of water under the recreational water vessel, the channel member being arranged in use to be fixed to an underside of the vessel with a device to attach the channel member therewith, the channel member comprising a pair of opposing side walls and a lower wall interconnecting with and spanning a lower portion of each side wall, wherein a foremost portion of each of said side walls is curved slightly inwardly towards a corresponding foremost portion of the opposing side wall so as to provide a front opening of the channel member that is narrower than a rear opening, wherein water flowing between the underside of the vessel and the channel member passes from a high pressure zone proximal to the front opening to a low water pressure zone proximal to the rear opening, such that decreasing pressure is exerted on a portion of water passing through the channel member from the front to the rear opening, thereby enhancing a forward thrust of the recreational water vessel in the water.