A vessel hull having a pair of vents formed in the chine on each side for allowing air to be introduced to the bottom and a pair of downwardly extending fins formed longitudinally along the chine adjacent to each vent. Each vent can be formed by a recess in the chine dividing the chine into a forwar
A vessel hull having a pair of vents formed in the chine on each side for allowing air to be introduced to the bottom and a pair of downwardly extending fins formed longitudinally along the chine adjacent to each vent. Each vent can be formed by a recess in the chine dividing the chine into a forward portion and an aft portion. Each fin is preferably formed longitudinally along the aft portion of the chine and extends below the waterline. The fins counterbalance the removal of a portion of the chine to vent the bottom and increase stability during turns. The hull preferably also includes a pair of chine extensions projecting aft of the transom on each side for reducing or eliminating side-to-side oscillation of the stern when the hull is propelled through the water at slow speeds.
대표청구항▼
I claim: 1. In a boat hull, having a bow and a stem and at least one chine, the improvement comprising at least one chine having a recessed area disposed therein and at least one fin downwardly extending below said boat hull, wherein the recessed area longitudinally interrupts the chine, dividing t
I claim: 1. In a boat hull, having a bow and a stem and at least one chine, the improvement comprising at least one chine having a recessed area disposed therein and at least one fin downwardly extending below said boat hull, wherein the recessed area longitudinally interrupts the chine, dividing the chine into one having a forward portion and an aft portion, wherein said fin is positioned longitudinally along said chine having said recessed area, wherein said fin is located adjacent to said recessed area, and wherein said fin is located immediately aft of said recessed area. 2. The boat hull, according to claim 1, comprising at least two fins, wherein a first fin is located fore of said recessed area and a second fin is located aft of said recessed area. 3. The boat bull, according to claim 1, wherein the surface area of said fin is approximately equal to the surface area missing from said chine as a result of said recessed area. 4. The boat bull, according to claim 1, wherein said fin extends downwardly for a vertical depth of about 1 inches to about 2쩌 inches for a boat hull having a bow to stern length of about 18 feet to about 45 feet. 5. The boat hull, according to claim 1, wherein the port-to-starboard thickness of said fin is about 1쩌 inches to about 1쩐 inches for a boat hull having a bow to stern length of about 18 feet to about 45 feet. 6. The boat hull, according to claim 1, wherein the leading edge of said fin is thinner than the tailing edge. 7. The boat hull, according to claim 1, wherein said recessed area is a step. 8. The boat hull, according to claim 1, wherein said recessed area has a fore to aft length of about 16 to about 30 inches for a boat hull having a bow to stem length of about 18 feet to about 45 feet. 9. The boat hull, according to claim 1, wherein said chine having said recessed area further comprises an extension aft of said stem, wherein said extension comprises a longitudinal member projecting rearward from said stem. 10. The boat hull, according to claim 9, wherein said extension is integrally molded into said boat hull. 11. The boat hull, according to claim 9, wherein said extension is affixed to said boat hull. 12. The boat hull, according to claim 9, wherein said extension is arched along the horizontal, wherein the widest point of said arch is located adjacent to said boat hull. 13. The boat hull, according to claim 9, wherein said extension is semi-arched along the horizontal, wherein the widest point of said arch is adjacent to said boat hull. 14. The boat hull, according to claim 9, wherein said extension has a fore to alt length of about ⅞ inches to about 1쩐 inches for a boat hull having a bow to stern length of about 10 feet to about 40 feet. 15. The boat hull, according to claim 9, wherein the port-to-starboard width of said extension at the point closest to said boat hull is about 3쩌 inches to about 4쩍 inches for a boat hull having a bow to stern length of about 10 feet to about 40 feet.
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