Vessel hull for forming waveforms for attraction of aquatic animals
Abstract
A vessel for operation on a water surface, having a hull that creates a waveform that attracts aquatic animals such as dolphins when traveling at a speed of 9 to 13 knots. The hull comprises a bow, a rounded stern and a midship section extending from the bow to the stern. The hull has a ratio of a waterline beam to a radius of the stern in a range between 2.0-2.5, and a speed-to-length ratio in a range between 1.5-1.7 to create a soft, curling wake in which dolphins can surf and jump. The hull further has a length-to-beam ratio between 2.5 to 3.0, a flat bottom aft, a high deadrise at the bow, and a full midsection with a longitudinal center of gravity located 52% to 56% aft of a beginning of a waterline to result in a low prismatic coefficient of the hull.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A hull of a vessel for operation on a water surface, the hull comprising:
a bow; a rounded stern; and a midship section extending from the bow to the stern; wherein the hull has a ratio of a waterline beam to a radius of the stern in a range between 2 . 0 - 2 . 5 and a Froude number in a range between 0.44-0.50.
2 . The hull as defined in claim 1 , wherein a stern deadrise angle is less than 2°.
3 . The hull as defined in claim 2 , wherein a midship deadrise is in a range between 8° to 16°.
4 . The hull as defined in claim 3 , wherein a bow deadrise angle is in a range between 70°-75°.
5 . The hull as defined in claim 1 , further comprising a chine flat extending along both starboard and port sides of the hull, wherein the chine flat has a width in a range between 3% to 4% of a waterline beam.
6 . The hull as defined in claim 5 , wherein the chine flat is a reverse chine flat comprising a reverse chine angle in a range between 8°-10° down sides of the stern on a front portion of the stern.
7 . The hull as defined in claim 5 , wherein the chine flat is a stern hook comprising a stern hook angle in a range between 4°-8° on a rear portion of the stern.
8 . The hull as defined in claim 1 , comprising a length-to-beam ratio of a waterplane in a range between 2.5 to 3.0.
9 . The hull as defined in claim 1 , comprising a block coefficient in a range between 0.35 to 0.40.
10 . The hull as defined in claim 1 , comprising a midship coefficient in a range between 0.68 to 0.74.
11 . The hull as defined in claim 1 , comprising a prismatic coefficient in a range between 0.48 to 0.54.
12 . The hull as defined in claim 1 , comprising a coefficient of waterplane in a range between 0.74 to 0.78.
13 . The hull as defined in claim 1 , comprising an optimum waterline length in a range between 40′ to 55′.
14 . The hull as defined in claim 1 , comprising a displacement-to-length ratio in a range between 215 to 250.
15 . The hull as defined in claim 1 , comprising a longitudinal center of gravity and a longitudinal center of buoyancy located 52% to 56% aft of a station 0 marking a beginning of a waterline.
16 . A vessel for operation on a water surface, the vessel including a hull comprising a shape that creates a big wave when planning at a speed between 9 to 13 knots;
wherein the hull comprises a displacement-to-length ratio between 215-250 and a Froude number in a range between 0.44-0.50 or a speed-to-length ratio in a range between 1.5-1.7.
17 . The vessel as defined in claim 16 , wherein the hull further comprises a rounded stern, wherein the hull has a waterline length in a range between 40′ to 55′ and a ratio of a waterline beam to a radius of the stern in a range between 2.0-2.5.
18 . The vessel as defined in claim 17 , further comprising a chine flat extending along both starboard and port sides of the hull, wherein the chine flat has a width in a range between 3% to 4% of a waterline beam.
19 . The vessel as defined in claim 18 , wherein the chine flat around the stern is a reverse chine flat comprising a reverse chine angle in a range between 8°-10° on a front portion of the stern and a stern hook angle in a range between 4°-8° on a rear portion of the stern.
20 . The vessel as defined in claim 16 , wherein the hull further comprises a flat bottom aft, a high deadrise at the bow, a midship section with a longitudinal center of gravity located 52% to 56% aft of a station 0 marking a beginning of a waterline to result in a low prismatic coefficient of the hull.
21 . A method of creating a big waveform that attracts aquatic animals, the method comprising the steps of:
providing a vessel comprising the hull as defined in claim 1 ; traveling the vessel on a water surface at a speed between 9 to 13 knots; and creating a large waveform.
22 . The method as defined in claim 21 , wherein the aquatic animals are dolphins.Join the waitlist — get patent alerts
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