EP0271939A1 - Dreirumpf-Segeljacht - Google Patents

Dreirumpf-Segeljacht Download PDF

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Publication number
EP0271939A1
EP0271939A1 EP87202245A EP87202245A EP0271939A1 EP 0271939 A1 EP0271939 A1 EP 0271939A1 EP 87202245 A EP87202245 A EP 87202245A EP 87202245 A EP87202245 A EP 87202245A EP 0271939 A1 EP0271939 A1 EP 0271939A1
Authority
EP
European Patent Office
Prior art keywords
hulls
cockpit
sailing
sailing yacht
symmetry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP87202245A
Other languages
English (en)
French (fr)
Inventor
Gerard Jelle Bilkert
Peter Van Oossanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIANA YACHT DESIGN BV
Original Assignee
DIANA YACHT DESIGN BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DIANA YACHT DESIGN BV filed Critical DIANA YACHT DESIGN BV
Publication of EP0271939A1 publication Critical patent/EP0271939A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly

Definitions

  • the invention relates to a sailing yacht with three hulls.
  • the planes of symmetry of the three hulls are essentially parallel to each other, in a vessel lying straight, essentially perpendicular to the water surface, and the two outermost hulls are generally at the same depth in the water.
  • the outermost hulls are often smaller in dimension than the central hull.
  • the hulls are in general slimmer than in a conventional vessel with a single hull, which means that the speed can be greater.
  • a trimaran exhibits better stability than a vessel with one hull when sailing before the wind, i.e. when the vessel is lying straight in the water, when sailing into the wind one of the side hulls can be lifted entirely out of the water and the others are largely immersed, so that the stability becomes doubtful. Besides, the width of the vehicle relative to the length is very great.
  • the object of the invention is to eliminate the disadvantages of the known sailing yacht with three hulls and to produce improved sailing behaviour when sailing into the wind.
  • the sailing yacht comprises a cockpit and three essentially identical hulls, a central hull and two side hulls, emerging from the bottom of the cockpit, the planes of symmetry of the two side hulls intersecting each other in a plane of symmetry of the cockpit above the deck of the sailing yacht.
  • the three hulls preferably have essentially the same cross sectional shape and length.
  • the three hulls are preferably made slim, so that the vessel can sail very fast even when sailing into the wind.
  • the angle between the plane of symmetry of the cockpit and each of the side hulls is also preferably between 25 and 45 degrees, preferably 35 degrees.
  • the cockpit which is actually conventional in shape, is indicated by reference number 1, the deck by 2, and the transom by 3.
  • the cockpit 1 in the example has a conventionally curved bottom, but the bottom can also be V-shaped.
  • a central hull 4 and two side hulls 5 and 6 now connect over virtually the entire length of the cockpit 1.
  • These hulls 4, 5 and 6 are slender in shape.
  • Fig. 3 the waterline in indicated by DWL for sailing before the wind, i.e. when the vessel is lying straight.
  • the planes of symmetry of the three hulls 4, 5 and 6 intersect each other in a line 7 above the deck 2 of the vessel.
  • the angle between the plane of symmetry of each side hull and the cockpit is about 35 degrees, with 25 to 45 degrees as limits. This means that with an angle of inclination of approximately 35 degrees the central hull and one of the side hulls over the part sticking into the water are equal and each form an angle of about 17.5 degrees with the plane perpendicular to the water surface.
  • the great width of the present three-hull yacht provides great transverse stability, which is important for sailing into the wind. In most cases a keel will therefore in the present case not be necessary for stability and the generation of transverse forces.
  • the central hull 4 can be provided with a keel 8 if desired.

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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)
  • Toys (AREA)
EP87202245A 1986-11-18 1987-11-17 Dreirumpf-Segeljacht Withdrawn EP0271939A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8602924 1986-11-18
NL8602924A NL8602924A (nl) 1986-11-18 1986-11-18 Zeiljacht met drie rompen.

Publications (1)

Publication Number Publication Date
EP0271939A1 true EP0271939A1 (de) 1988-06-22

Family

ID=19848853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87202245A Withdrawn EP0271939A1 (de) 1986-11-18 1987-11-17 Dreirumpf-Segeljacht

Country Status (2)

Country Link
EP (1) EP0271939A1 (de)
NL (1) NL8602924A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648778A1 (fr) * 1989-06-26 1990-12-28 Baud Barthelemy Coque a deflecteurs anti-gite pour un bateau et notamment un voilier
US6601529B1 (en) * 2001-06-21 2003-08-05 The United States Of America As Represented By The Secretary Of The Navy Stabilized tumblehome hull form
DE102011010962B3 (de) * 2010-09-20 2012-03-15 Jürgen Banning Segelboot
NL2009307C2 (en) * 2012-08-09 2014-02-11 Ir M G Reissenweber Man Consultants B V Vessel with three hulls having forward deflactors.
US9718516B2 (en) 2014-09-30 2017-08-01 Maine Center For Coastal Fisheries Trimaran hull and boat
USD811983S1 (en) 2015-11-25 2018-03-06 Maine Center For Coastal Fisheries Trimaran hull

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854292A (en) * 1958-05-22 1960-11-16 Erick James Manners Improvements in catamarans
FR1546885A (fr) * 1967-11-28 1968-11-22 Embarcation autostable multicoque
US4445453A (en) * 1982-03-17 1984-05-01 Hiram L. Fong, Jr. High speed displacement type hull
FR2554410A1 (fr) * 1983-11-09 1985-05-10 Gardeble Jean Claude Equipement pour la transformation de catamarans de sport a voile en bateaux de peche-promenade a moteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854292A (en) * 1958-05-22 1960-11-16 Erick James Manners Improvements in catamarans
FR1546885A (fr) * 1967-11-28 1968-11-22 Embarcation autostable multicoque
US4445453A (en) * 1982-03-17 1984-05-01 Hiram L. Fong, Jr. High speed displacement type hull
FR2554410A1 (fr) * 1983-11-09 1985-05-10 Gardeble Jean Claude Equipement pour la transformation de catamarans de sport a voile en bateaux de peche-promenade a moteur

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648778A1 (fr) * 1989-06-26 1990-12-28 Baud Barthelemy Coque a deflecteurs anti-gite pour un bateau et notamment un voilier
US6601529B1 (en) * 2001-06-21 2003-08-05 The United States Of America As Represented By The Secretary Of The Navy Stabilized tumblehome hull form
DE102011010962B3 (de) * 2010-09-20 2012-03-15 Jürgen Banning Segelboot
NL2009307C2 (en) * 2012-08-09 2014-02-11 Ir M G Reissenweber Man Consultants B V Vessel with three hulls having forward deflactors.
WO2014025257A1 (en) 2012-08-09 2014-02-13 Anwigema B.V. Vessel with three hulls having forward hydrofoils
US9718516B2 (en) 2014-09-30 2017-08-01 Maine Center For Coastal Fisheries Trimaran hull and boat
USD811983S1 (en) 2015-11-25 2018-03-06 Maine Center For Coastal Fisheries Trimaran hull

Also Published As

Publication number Publication date
NL8602924A (nl) 1988-06-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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