US20040206290A1 - Combination planing and displacement boat hull - Google Patents

Combination planing and displacement boat hull Download PDF

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Publication number
US20040206290A1
US20040206290A1 US10/413,706 US41370603A US2004206290A1 US 20040206290 A1 US20040206290 A1 US 20040206290A1 US 41370603 A US41370603 A US 41370603A US 2004206290 A1 US2004206290 A1 US 2004206290A1
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Prior art keywords
hull
boat
planing
ship
fins
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Abandoned
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US10/413,706
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Richard Morris
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Individual
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Individual
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Priority to US10/413,706 priority Critical patent/US20040206290A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces

Definitions

  • the present invention relates generally to the hull configuration for boats or ships, more specifically to a lifting flange replacing the wide stem typically found on most planing hulls and thereby increasing speed and reducing fuel consumption when said water craft is not on plane but in a displacement mode.
  • the boat as it comes off plane settles into the water, the water is then free to flow on the curved portion of the aft hull thereby reducing drag.
  • the fins are not wings as found in hydrofoils. When on plane there is almost no water flow over the top side of the flange or fin.
  • the fins do not generally follow the contour of the hull like lifting strakes or chine hulls.
  • U.S. Pat. No. 5,404,830 fails to provide for a tapered hull at the aft section and uses retractable wings, when wings are deployed they abruptly extend into the water stream.
  • U.S. Pat. No. 3,881,438 has lifting hydrofoil wings which remain under the water and the vessel never gets on plane thereby reducing its potential speed.
  • FIG. 1 is a plan view of the boat.
  • FIG. 2 is a port elevation of the boat.
  • FIG. 3 is bow elevation of the boat.
  • FIG. 4 is a section view of the boat hull taken along the section line 4 - 4 .
  • FIG. 5 is an aft elevation of the boat.
  • the plan view 6 shows the hull tapering back to the stem 1 .
  • the fins 5 start and extend aft where the fin angles back to the main hull 3 .
  • the hull continues to taper back and a new fin 7 extends back to the stem.
  • the jog or multiple fins 5 and 7 reduces the surface drag and provides a break for the water to separate from the boat.
  • the stem wall 1 is sloped for the installation of a stern drive and is only wide enough for the installation of the engine and components improving the prismatic ratio, other drives systems reducing the blunt end are also anticipated.
  • the preferred embodiment of this boat is made from marine grade aluminum.
  • FIG. 2 shows the Portside Elevation, the fins 5 and 7 can be seen here staggered vertically maintaining the optimum angle of attack on the water.
  • FIG. 3 shows the Bow Elevation of boat or ship 6
  • FIG. 4 shows section 4 - 4 . Plates/fins can be seen here extending from the aft portion of the Hull 9 .
  • FIG. 5 shows the Aft Elevation with a stem drive configuration 8 .

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

An improved boat or ship with a combination planing and displacement hull, fins mounted near the aft section provide increased planing area while still permitting a tapered aft of favorable prismatic ratio for when the boat or ship is in the displacement mode.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates generally to the hull configuration for boats or ships, more specifically to a lifting flange replacing the wide stem typically found on most planing hulls and thereby increasing speed and reducing fuel consumption when said water craft is not on plane but in a displacement mode. The boat as it comes off plane settles into the water, the water is then free to flow on the curved portion of the aft hull thereby reducing drag. The fins are not wings as found in hydrofoils. When on plane there is almost no water flow over the top side of the flange or fin. The fins do not generally follow the contour of the hull like lifting strakes or chine hulls. [0001]
  • Many planning watercraft are operated in a displacement or non-planing mode. When in rough seas or in no wake zones most planing hulls have very turbulent water flow at the aft when in the displacement mode, this is due to the abrupt end typically found on most planing hulls. [0002]
  • U.S. Pat. No. 5,404,830 fails to provide for a tapered hull at the aft section and uses retractable wings, when wings are deployed they abruptly extend into the water stream. [0003]
  • U.S. Pat. No. 3,881,438 has lifting hydrofoil wings which remain under the water and the vessel never gets on plane thereby reducing its potential speed. [0004]
  • U.S. Pat. No. 2,929,346 Makes no use of a planing hull and fins extend abruptly into the water stream. [0005]
  • None of the above patents, taken either singly or in combination, is seen to describe the instant invention as claimed. [0006]
    • BRIEF SUMMARY OF THE INVENTION
  • Accordingly, it is a principal object of the invention to provide a hull with both the advantages of a high speed planing hull with the low speed advantages of a tapered displacement hull. [0007]
  • It is another object of the invention to reduce fuel cost by reducing drag. [0008]
  • It is another object of the invention to minimize the effects of an overly buoyant hull which is subject to disruption from high sea states. [0009]
  • It is another object of the invention to minimize the pitch and roll by use of the fins or flanges. [0010]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a plan view of the boat. [0011]
  • FIG. 2 is a port elevation of the boat. [0012]
  • FIG. 3 is bow elevation of the boat. [0013]
  • FIG. 4 is a section view of the boat hull taken along the section line [0014] 4-4.
  • FIG. 5 is an aft elevation of the boat.[0015]
    • DETAILED DESCRIPTION OF THE INVENTION
  • A combination planing hull and displacement hull as shown in plan view FIG. 1. The [0016] plan view 6 shows the hull tapering back to the stem 1. At point 2 the fins 5 start and extend aft where the fin angles back to the main hull 3. The hull continues to taper back and a new fin 7 extends back to the stem. The jog or multiple fins 5 and 7 reduces the surface drag and provides a break for the water to separate from the boat. The stem wall 1 is sloped for the installation of a stern drive and is only wide enough for the installation of the engine and components improving the prismatic ratio, other drives systems reducing the blunt end are also anticipated. The preferred embodiment of this boat is made from marine grade aluminum.
  • FIG. 2 shows the Portside Elevation, the [0017] fins 5 and 7 can be seen here staggered vertically maintaining the optimum angle of attack on the water.
  • FIG. 3 shows the Bow Elevation of boat or [0018] ship 6
  • FIG. 4 shows section [0019] 4-4. Plates/fins can be seen here extending from the aft portion of the Hull 9.
  • FIG. 5 shows the Aft Elevation with a stem drive configuration [0020] 8.
  • It is understood that the present invention is not limited to the preferred embodiments described above, but encompasses any and all embodiments within the scope of the following claims. [0021]

Claims (2)

What is claimed is:
1. A boat or ship with a tapered displacement type hull with a plurality of fins extending near horizontally from the port and starboard aft portion of the hull thereby improving the prismatic ratio and extending the useful area used for planing the boat or ship.
2. A boat or ship according to claim 1 wherein the fins are staggered in elevation.
US10/413,706 2003-04-16 2003-04-16 Combination planing and displacement boat hull Abandoned US20040206290A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/413,706 US20040206290A1 (en) 2003-04-16 2003-04-16 Combination planing and displacement boat hull

Applications Claiming Priority (1)

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US10/413,706 US20040206290A1 (en) 2003-04-16 2003-04-16 Combination planing and displacement boat hull

Publications (1)

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US20040206290A1 true US20040206290A1 (en) 2004-10-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080127874A1 (en) * 2006-12-05 2008-06-05 Carl Daley Hybrid boat hull
US10676158B2 (en) 2015-03-12 2020-06-09 Yu Lee TAN Watercraft using narrowing concave channels

Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US964627A (en) * 1909-09-28 1910-07-19 Andrew Ege Boat.
US998437A (en) * 1909-11-20 1911-07-18 Fred W Wieland Boat.
US998278A (en) * 1910-07-08 1911-07-18 George Ronstrom Clifford Hydroplane vessel.
US1041849A (en) * 1912-03-14 1912-10-22 Charles H Myers Motor-boat.
US1074951A (en) * 1912-10-01 1913-10-07 John D Hunt Jr Side plane for boats.
US1233708A (en) * 1916-08-22 1917-07-17 Carleton Ruhe Hydroplane.
US1318413A (en) * 1919-10-14 Hull for hydroplanes or boats
US1364425A (en) * 1921-01-04 Flying-boat hull
US1581881A (en) * 1925-05-09 1926-04-20 Clarence R Smith Speed-boat hull
US1728609A (en) * 1927-09-30 1929-09-17 Carl D Holler Seaplane float
US1858030A (en) * 1930-05-31 1932-05-10 Earl M Hicks Speed boat construction
US2040984A (en) * 1935-05-14 1936-05-19 Francesco Joe Coluccio Fu Speed wave ship
US2627832A (en) * 1947-07-25 1953-02-10 Gagliano Nicholas Submersible amphibian landing craft
US2849978A (en) * 1956-04-10 1958-09-02 E J Durham Boat construction for submerged or surface operation
US2929346A (en) * 1956-07-17 1960-03-22 Glenn E Perce Boat
US2972322A (en) * 1959-02-09 1961-02-21 Gilman Engineering & Mfg Compa Boat
US2996030A (en) * 1959-12-04 1961-08-15 Gordon J Lornson Air powered water vehicle
US3491711A (en) * 1968-03-13 1970-01-27 Max J Demo Boat with ferro-concrete hull
US3707936A (en) * 1970-09-17 1973-01-02 H Harris Boat hull construction
US3835492A (en) * 1972-10-16 1974-09-17 R Orchowski Water sled
US4030443A (en) * 1976-03-29 1977-06-21 Price Donald C Sports watercraft
US4269135A (en) * 1977-11-14 1981-05-26 Michelino Labonia Hydroplanes
US4372240A (en) * 1980-07-23 1983-02-08 Michael Farid Y Surface ship having improved speed and maneuverability
USD303518S (en) * 1987-01-20 1989-09-19 Teren Nelson F Boat
USD309596S (en) * 1987-05-26 1990-07-31 Castagna William D Watercraft
US5404830A (en) * 1992-05-11 1995-04-11 Ligozio; Peter A. Finned boat hull
USD374852S (en) * 1995-06-27 1996-10-22 Goran Mannerfelt Boat
USD408779S (en) * 1997-09-09 1999-04-27 Ishigaki Company Limited Motorboat
USD444761S1 (en) * 1999-07-30 2001-07-10 Kawasaki Jukogyo Kabushiki Kaisha Water scooter
USD475964S1 (en) * 2000-03-23 2003-06-17 Alex Sakas Surface/underwater vehicle

Patent Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1318413A (en) * 1919-10-14 Hull for hydroplanes or boats
US1364425A (en) * 1921-01-04 Flying-boat hull
US964627A (en) * 1909-09-28 1910-07-19 Andrew Ege Boat.
US998437A (en) * 1909-11-20 1911-07-18 Fred W Wieland Boat.
US998278A (en) * 1910-07-08 1911-07-18 George Ronstrom Clifford Hydroplane vessel.
US1041849A (en) * 1912-03-14 1912-10-22 Charles H Myers Motor-boat.
US1074951A (en) * 1912-10-01 1913-10-07 John D Hunt Jr Side plane for boats.
US1233708A (en) * 1916-08-22 1917-07-17 Carleton Ruhe Hydroplane.
US1581881A (en) * 1925-05-09 1926-04-20 Clarence R Smith Speed-boat hull
US1728609A (en) * 1927-09-30 1929-09-17 Carl D Holler Seaplane float
US1858030A (en) * 1930-05-31 1932-05-10 Earl M Hicks Speed boat construction
US2040984A (en) * 1935-05-14 1936-05-19 Francesco Joe Coluccio Fu Speed wave ship
US2627832A (en) * 1947-07-25 1953-02-10 Gagliano Nicholas Submersible amphibian landing craft
US2849978A (en) * 1956-04-10 1958-09-02 E J Durham Boat construction for submerged or surface operation
US2929346A (en) * 1956-07-17 1960-03-22 Glenn E Perce Boat
US2972322A (en) * 1959-02-09 1961-02-21 Gilman Engineering & Mfg Compa Boat
US2996030A (en) * 1959-12-04 1961-08-15 Gordon J Lornson Air powered water vehicle
US3491711A (en) * 1968-03-13 1970-01-27 Max J Demo Boat with ferro-concrete hull
US3707936A (en) * 1970-09-17 1973-01-02 H Harris Boat hull construction
US3835492A (en) * 1972-10-16 1974-09-17 R Orchowski Water sled
US4030443A (en) * 1976-03-29 1977-06-21 Price Donald C Sports watercraft
US4269135A (en) * 1977-11-14 1981-05-26 Michelino Labonia Hydroplanes
US4372240A (en) * 1980-07-23 1983-02-08 Michael Farid Y Surface ship having improved speed and maneuverability
USD303518S (en) * 1987-01-20 1989-09-19 Teren Nelson F Boat
USD309596S (en) * 1987-05-26 1990-07-31 Castagna William D Watercraft
US5404830A (en) * 1992-05-11 1995-04-11 Ligozio; Peter A. Finned boat hull
USD374852S (en) * 1995-06-27 1996-10-22 Goran Mannerfelt Boat
USD408779S (en) * 1997-09-09 1999-04-27 Ishigaki Company Limited Motorboat
USD444761S1 (en) * 1999-07-30 2001-07-10 Kawasaki Jukogyo Kabushiki Kaisha Water scooter
USD475964S1 (en) * 2000-03-23 2003-06-17 Alex Sakas Surface/underwater vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080127874A1 (en) * 2006-12-05 2008-06-05 Carl Daley Hybrid boat hull
US7487736B2 (en) 2006-12-05 2009-02-10 Carl Daley Hybrid boat hull
US10676158B2 (en) 2015-03-12 2020-06-09 Yu Lee TAN Watercraft using narrowing concave channels

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