EP1557350A1 - Hochleistungssegelboot mit Flügelelementen und Auftrieb erzeugenden Segeln - Google Patents

Hochleistungssegelboot mit Flügelelementen und Auftrieb erzeugenden Segeln Download PDF

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Publication number
EP1557350A1
EP1557350A1 EP04425039A EP04425039A EP1557350A1 EP 1557350 A1 EP1557350 A1 EP 1557350A1 EP 04425039 A EP04425039 A EP 04425039A EP 04425039 A EP04425039 A EP 04425039A EP 1557350 A1 EP1557350 A1 EP 1557350A1
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EP
European Patent Office
Prior art keywords
boat
sails
wing
multihull
hull
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.)
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Application number
EP04425039A
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English (en)
French (fr)
Inventor
Luigi Greppi
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP04425039A priority Critical patent/EP1557350A1/de
Publication of EP1557350A1 publication Critical patent/EP1557350A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B63H9/10—Running rigging, e.g. reefing equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels

Definitions

  • the present invention relates to a high-performance multihull yare sailing boat using wing sections and lifting sails.
  • the present invention now aims instead at fully exploiting the principle of using the upward wind flow to "lift" a sailing boat in the manner and time apt to guarantee its utmost performance, thereby achieving the desired results.
  • the present invention relates to a multihull yare sailing boat of the type having at least one main hull, sails and rigging, one steering system, at least one mast and centreboard-rudder-foils, characterised in that crosswise to said main hull are mounted a pair of wing-section beams with wing boxes with a varying angle of incidence, to which are orientably attached a plurality of sails, the upper end of which is attached to the mast; that at least one pair of side peaks with fin foils are swingingly supported by said hull and by said wing-section beams; and that there are provided means to manoeuvre said beams, peaks and sails, so as to suitably orient wing boxes, fins and sails, the sails and rigging and the steering system being repeatable on the two sides of the boat.
  • the boat features a single main hull with a single mast, two wing-section beams with a varying angle of incidence aligned and orientable about a vertical axis, the structure of the boat and of its sails and rigging and steering system being fully symmetrical.
  • Such boat is fitted with a pair of side peaks with fin foils swingingly and orientably supported by said wing-section beams of said boat and possibly by a pair of side peaks with fin foils linked to the main hull by at least one wishbone.
  • said boat three main hulls are provided lying side by side with a single mast mounted on the central hull and at least the first beam of said pair of wing-section beams is rotating about an axis parallel to said mast and located in front of it, while the second beam comprises a plurality of longitudinal rails wherein are sliding and lockable the restraints of the head sheet angles of the jibs of said sails and rigging, the clew angles of which are attached to the first beam.
  • the first beam is of a varying length, comprising two mutually sliding parts between which are interposed elastic means, while the second beam is sliding transversally to said hulls to arrange itself asymmetrically in respect of the boat on both sides thereof.
  • said second beam is curved with its concave side facing upwards. Furthermore, it can be equipped with a rail to restrain the sheet angle of a mainsail.
  • a first embodiment of the invention which is currently preferred, is shown in fig. 1.
  • the illustrated boat comprises, in a manner known per se, a main hull 1 equipped with a mainmast 2, sails and rigging and a steering system, as well as centreboard-rudder-foils.
  • a pair of beams 3 comprising wing boxes, orientably mounted at an angle of incidence, which extend over the two hull edges and represent fixing elements for a series of jibs 4, mutually spaced and with different tilting angles, attached from above to the mast 2.
  • the wing-section beams 3 comprise two opposed bearing booms 5 and 6, rotatingly mounted about their own axis on a central holder 7, which in turn rotates about the step 8 of the mast 2 about a vertical axis (coinciding, in the embodiment shown, with that of the mast 2).
  • the orientation of the beams 3 with the holder 7 is controlled by ropes 3A and 3B to adjust it according to the wind direction.
  • the booms 5 and 6 are integral the respective wing boxes 9 and 10.
  • the bearing booms 5 and 6 are controlled so as to vary their angle of incidence by suitable manoeuvring members 11 and 12 which may be operated by the crew.
  • the bearing booms 5 and 6 project from the ends of the wing boxes 9 and 10 to support the displacing end peaks 13 and 14, capable of counteracting the sinking of the end of the beams 3 on the lee side.
  • these peaks 13 and 14 are orientably mounted within the plane of the wing-section beams 3.
  • the peaks are rotatingly mounted in respect of the bearing booms 5 and 6, two manoeuvring rods 15 e 16, respectively, being further provided sliding inside the wing boxes 9 and 10 and restrained to the rear part of the peaks by a hinge.
  • the manoeuvring rods 15 and 16 are mutually restrained to ensure that the two peaks 14 and 15 are parallel in any orientation condition of the beams 3 obtained by the ropes 3A and 3B.
  • each wing box 9 and 10 is hinged a pair of support rods 17 and 18, of auxiliary peaks 19, 20 equipped with a fin foil, 21, 22, respectively.
  • the fin foils 21, 22 are shaped so as to ensure increasing lift for an increasing sinking of the foil, thereby supplying a force which progressively counters leeside capsizing.
  • the already mentioned displacing peaks 13 and 14 are anyway provided at the ends of the wing-section beams 3.
  • each jib 4 is restrained together above by the mast 2 and below, at a certain distance from one another, by respective booms 23, which are in turn fixed to the wing-section beams 3 by crew-operated means.
  • the stay of each jib 4 is equipped with a jib roller of a known type.
  • main hull 1 On the main hull 1 are provided two centreboard-rudder-foils, a front one 24 and a rear one 25, while the same hull 1 is flanked by a pair of hulls 26 and 27 with side fins 28, 29, respectively.
  • the front and rear centreboard-rudder-foils 24 and 25 of the main hull 1 are orientable about their own axis one in the opposite direction to the other by means of ropes 24A and 25A controlled by a pedalboard and therefore they act as rudders.
  • Said fins are provided with horizontal foils 30 and 31, tiltable to control the lift and lift decrease, to facilitate lifting of the hull and exploitation of the wave motion.
  • the side hulls 26 and 27 are mounted up-and-over, by means of linking arms 32, 33 on the two edges of the main hull 1.
  • the angle of up-and-over motion of the hulls 26 and 27 is determined by suitable manoeuvring means, such as hydraulic pistons 34.
  • the fins 28 and 29 are mounted preferably sliding in a respective step of the same hulls, so as to be drawn out or retrieved to the desired measure.
  • the hull 1 is very long because, as long as it does not lift over the fin foils (which only happens at high speeds), the speed depends on its length.
  • the front foils 30 and the rear foils 31 are incidence-adjustable - by means of a "control stick" (not shown) - to adjust the displacement of the boat in the desired measure.
  • the front and rear foils may also be manoeuvred to function in a discordant manner (for example with different deflection entities) so as to supply nose-diving moments or zooming moments of the main hull.
  • the lift on the wing-section beams 3 is favourably increased by the "jibs effect” and by the “ground effect”, especially when the beams approach the water free surface on the lee side. This allows to diminish the inclination of the sails, increasing the propulsive thrust that these are capable of developing. To the same effect contribute the sails inserted on the windward wing-section beams and the countermoment developed by the side fin foils.
  • the boat is of the trimaran type with three main hulls 41A, 41B and 41C with main mast 42 on the central hull 41A and comprises a first wing-section beam 43 hinged on a vertical axis 43A about which it can rotate, located in front of the mast 42 and in its proximity, and a second wing-section beam 44, mounted transversally to the longitudinal axis of the hulls 41A, 41B and 41C, capable of sliding in respect thereof.
  • the first beam 43 comprises a wing box 45 which is mounted sliding over a relatively short trait and which rotates by modest angles with respect to its bearing boom 46, hinged in 43A, between the two parts 45 and 46 of the beam 43, there being interposed elastic means 47 (fig. 4).
  • the wing box 45 Along the same beam 43 are fixed to the wing box 45 the clew angles of the jibs 48, 49 and 50.
  • the second wing-section beam 44 mounted - in the embodiment of fig. 2 - behind the mast 42, is equipped with a series of rails 51, 52 and 53 wherein are sliding and lockable the sheet angles of the three jibs 48, 49 and 50 without boom.
  • the wing-section beam 44 features a certain curvature of the vertical plane which makes it upwardly concave and slides - thanks to pairs of vertical rollers 54, 55, 56 and 57, mounted on the side hulls 41B and 41C of the boat - from the position shown in figs. 2 and 3 to the symmetrical position.
  • the wing-section beam 43 is restrained below by means of a sheet, a downhaul or other restraint sliding within an arc-of-a-circle rail 58, located between the hulls 41A, 41B and 41C (fig. 2) and linking the same.
  • the sails and rigging are completed by a mainsail 59, equipped with a respective boom 60, itself sliding within a suitable rail 61 of the cross wing-section beam 44 (and shown by figs. 2 and 3 in the position of normal speed - continuous lines - and in that of high speed sailing - discontinuous lines).
  • this embodiment allows to keep - for the boat according to the invention - a substantially traditional and symmetrical configuration, wherein the first wing-section beam 43 is aligned with the main hull 41A, and the jibs 48, 49 and 50 operate on the two sides of the boat, suitably shifting - for the necessary adjustments - the sheet angles along the rails 51, 52 and 53, while the mainsail 59 takes up the central continuous-line position.
  • the invention allows to drastically change such configuration, rotating the beam 43 leeward.
  • This causes the outward move, towards a side of the boat, of the clew angles of the jibs 48, 49 and 50, while consequently also the sheet angles of the same jibs are induced by the wind to move outwards with the beam 44, the curvature of which adapts to the positioning of the jib tacks in the lifting condition.
  • the boom 60 of the mainsail 59 moves leewards.
  • the two wing-section beams 43 and 44 offer an upward aerodynamic component, which is greater on the lee side, where also the first rotating beam 43 is located.
  • this beam 43 has a bearing section and - although it normally offers a wider angle to the wind, being swept over by the deviated flow of the jibs - accentuates the rectifying moments of the ground effect and of the jibs effect.
  • the wing-section beam 43 is shown in detail in figs. 4 and 5. They show very clearly how the wing box 45 of this beam is mounted translatable on the bearing boom 46 hinged in 43A, so as to be able to adapt the overall length of the beam 43 to the different requirements. Such adaptation is eased by elastic means 47 and allows the translation of the sheet points of the jibs 48, 49 and 50, in particular to facilitate their lifting function. From the same figs. 4 and 5 it can be clearly seen how the beam 43 comprises, on both sides, leading edge slat 62 and extension flaps 63, the control of which effectively combines with possible modest rotations of the wing box 45 on the boom 46 (to adjust its incidence) to the purpose of varying the lift of the beam 43 itself. In other words, the beam 43 can take up bearing or negative lifting attitudes on the two edges.
  • Fig. 3 finally shows a pair of safety peaks or foils 64 and 65 mounted at the ends of the winged cross beam 44 to provide further contrast, upon contact with water, to the capsizing moment.
  • the hulls are completed - as already shown for the previous embodiment - by a series of suitably arranged and oriented foils and fin foils, such as the fin foils 66 and 67 of the side hulls 41B and 41C and the centreboard-rudder-foils 68 of the hull 41A.
  • the embodiment of the invention described above allows to achieve the objects detailed in the preliminary remarks, namely to supply a boat manoeuvrable in the most effective way and without too much effort, and capable of best exploiting the wind flow. Said boat thus allows to achieve high speeds, leaving unchanged the tacking capability, not to the detriment - more in general - of comfort and of the effectiveness of the manoeuvre.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Jib Cranes (AREA)
EP04425039A 2004-01-23 2004-01-23 Hochleistungssegelboot mit Flügelelementen und Auftrieb erzeugenden Segeln Withdrawn EP1557350A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04425039A EP1557350A1 (de) 2004-01-23 2004-01-23 Hochleistungssegelboot mit Flügelelementen und Auftrieb erzeugenden Segeln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425039A EP1557350A1 (de) 2004-01-23 2004-01-23 Hochleistungssegelboot mit Flügelelementen und Auftrieb erzeugenden Segeln

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EP1557350A1 true EP1557350A1 (de) 2005-07-27

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EP04425039A Withdrawn EP1557350A1 (de) 2004-01-23 2004-01-23 Hochleistungssegelboot mit Flügelelementen und Auftrieb erzeugenden Segeln

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102372080A (zh) * 2010-08-04 2012-03-14 陈文渊 帆船
EP2409911A3 (de) * 2010-07-20 2013-03-20 Chen, Wen-Yun Segelboot

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2106432A (en) * 1934-06-27 1938-01-25 Mcintyre Malcolm Sailing craft
US3077850A (en) * 1961-06-19 1963-02-19 William C Beuby Sailboat of the catamaran type
FR2050915A5 (de) * 1969-06-30 1971-04-02 Casasola Florent
FR2481223A1 (fr) * 1980-04-28 1981-10-30 Manchon Andre Voilier trimaran muni d'un systeme de compensation de la gite
EP0045293A1 (de) * 1980-05-22 1982-02-03 Georg Dipl.-Ing. Ickinger Mehrrumpfboot mit Segelantrieb
FR2559735A1 (fr) * 1984-02-21 1985-08-23 Doare Jean Yves Espars de trapeze permettant aux voiliers un couple de rappel reglable
US5088431A (en) * 1985-06-03 1992-02-18 Pizzey John K Sailing vessels
CA2267874A1 (en) * 1999-03-31 2000-09-30 David Panar Modified water craft

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2106432A (en) * 1934-06-27 1938-01-25 Mcintyre Malcolm Sailing craft
US3077850A (en) * 1961-06-19 1963-02-19 William C Beuby Sailboat of the catamaran type
FR2050915A5 (de) * 1969-06-30 1971-04-02 Casasola Florent
FR2481223A1 (fr) * 1980-04-28 1981-10-30 Manchon Andre Voilier trimaran muni d'un systeme de compensation de la gite
EP0045293A1 (de) * 1980-05-22 1982-02-03 Georg Dipl.-Ing. Ickinger Mehrrumpfboot mit Segelantrieb
FR2559735A1 (fr) * 1984-02-21 1985-08-23 Doare Jean Yves Espars de trapeze permettant aux voiliers un couple de rappel reglable
US5088431A (en) * 1985-06-03 1992-02-18 Pizzey John K Sailing vessels
CA2267874A1 (en) * 1999-03-31 2000-09-30 David Panar Modified water craft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2409911A3 (de) * 2010-07-20 2013-03-20 Chen, Wen-Yun Segelboot
CN102372080A (zh) * 2010-08-04 2012-03-14 陈文渊 帆船

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