FR2833567A1 - List control device for sail boat comprises variable incidence hydrofoil mounted under fin - Google Patents
List control device for sail boat comprises variable incidence hydrofoil mounted under fin Download PDFInfo
- Publication number
- FR2833567A1 FR2833567A1 FR0116364A FR0116364A FR2833567A1 FR 2833567 A1 FR2833567 A1 FR 2833567A1 FR 0116364 A FR0116364 A FR 0116364A FR 0116364 A FR0116364 A FR 0116364A FR 2833567 A1 FR2833567 A1 FR 2833567A1
- Authority
- FR
- France
- Prior art keywords
- foil
- boat
- incidence
- control device
- mounted under
- 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.)
- Pending
Links
- 239000011888 foil Substances 0.000 claims description 28
- 230000005484 gravity Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
- B63B2041/003—Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
- B63B2041/006—Telescopically collapsible keels
Landscapes
- 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)
Abstract
Description
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DOMAINE TECHNIQUE La présente invention concerne un plan porteur immergé (ou hydrofoil) à incidence variable destiné à contrôler la gîte des bateaux à voile. TECHNICAL FIELD The present invention relates to a submerged carrier plane (or hydrofoil) with variable incidence intended to control the heeling of sailing boats.
ETAT DE LA TECHNIQUE ANTERIEURE, ET PROBLEME POSE
Préambule : le présent dispositif qui réduit la gîte des bateaux à voiles ne doit pas être confondu avec les plans porteurs (couramment appelés "dérives") utilisés pour réduire la dérive de trajectoire provoquée par la poussée latérale du vent (Exemples : brevets No W08903339 A 1, W09012733A 1, FR2546475A 1,
US71113376, FR8308949A, FRO140758, FR8502086A, FR1584377, CH631397, FR 95738.//ne do pas être confondu non plus avec les plans porteurs destinés à faire déjauger les coques, et utilisés sur les bateaux hydrofoils à moteur ou à voiles (Exemples : brevets NOFR2458448, FR2465639, FR2703975, W08909159A US5054410, US3789789) dans le but de réduire la traînée et donc d'augmenter la vitesse. STATE OF THE PRIOR ART, AND PROBLEM POSED
Preamble: the present device which reduces the heeling of sailing boats should not be confused with the bearing planes (commonly called "drifts") used to reduce the trajectory drift caused by the lateral thrust of the wind (Examples: patents No W08903339 A 1, W09012733A 1, FR2546475A 1,
US71113376, FR8308949A, FRO140758, FR8502086A, FR1584377, CH631397, FR 95738. NOFR2458448, FR2465639, FR2703975, W08909159A US5054410, US3789789) in order to reduce drag and therefore increase speed.
Un autre dispositif décrit dans le brevet EP 0373913 (Jeffreys, Peter B Prority 15/12/88 GB8829293), a, comme le présent dispositif, pour objectif de maîtriser la gîte, mais il utilise deux foils latéraux qui peuvent faire varier l'orientation de la force ; alors que le présent dispositif comporte un foil central qui peut faire varier la grandeur de force, et qui, disposé différemment, est compatible avec la structure des coques et quilles actuelles. Another device described in patent EP 0373913 (Jeffreys, Peter B Prority 15/12/88 GB8829293), has, like the present device, the objective of controlling the heeling, but it uses two lateral foils which can vary the orientation of the force ; while the present device comprises a central foil which can vary the magnitude of force, and which, arranged differently, is compatible with the structure of the current hulls and keels.
Les forces appliquées par le vent sur une voile se décomposent en une force longitudinale qui fait avancer le bateau, et une force latérale qui le fait gîter. The forces applied by the wind on a sail decompose into a longitudinal force which makes the boat move forward, and a lateral force which makes it sink.
Pour éviter une gîte excessive plusieurs solutions sont utilisées : # L'équipage "au rappel" sur les bateaux légers dits "de sport" * Une quille lestée, associée parfois à des ballasts latéraux, sur les monocoques * Des flotteurs latéraux et/ou des foils procurant un appui sur l'eau sur les multicoques Dans tous les cas la force de pesanteur est mise en jeu afin d'équilibrer l'action du vent pour limiter la gîte. To avoid excessive roosting, several solutions are used: # The crew "on recall" on light boats called "sport" * A weighted keel, sometimes associated with side ballasts, on monohulls * Lateral floats and / or foils providing support on the water on multihulls In all cases the force of gravity is brought into play in order to balance the action of the wind to limit the list.
Cela entraîne les inconvénients suivants : . Sur les monocoques la présence du lest augmente considérablement le déplacement (masse) du bateau et la surface mouillée, donc la traînée, ce qui contrarie la vitesse. This has the following disadvantages:. On monohulls the presence of ballast considerably increases the displacement (mass) of the boat and the wet surface, therefore the drag, which impedes speed.
. Sur les multicoques, on évite l'emploi de lest additionnel et on obtient le moment du couple des forces nécessaire par augmentation de la largeur du bateau. Ceci conduit à des bateaux encombrants et présentant une courbe de stabilité défavorable. . On multihulls, the use of additional ballast is avoided and the moment of torque required is obtained by increasing the width of the boat. This leads to bulky boats with an unfavorable stability curve.
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L'objet principal de l'invention est d'accroître les performances des monocoques (vitesse, confort,..) sans avoir les inconvénients des multicoques, en substituant une force hydrodynamique à l'action de la pesanteur, au moins pour une grande part. The main object of the invention is to increase the performance of monohulls (speed, comfort, etc.) without having the drawbacks of multihulls, by substituting a hydrodynamic force for the action of gravity, at least in large part .
EXPOSE DE L'INVENTION Le dispositif objet de l'invention réduit la gîte des voiliers sans mettre en oeuvre les forces de pesanteur et d'Archimède, et il ne présente pas les inconvénients précités. PRESENTATION OF THE INVENTION The device which is the subject of the invention reduces the heeling of sailboats without using the forces of gravity and Archimedes, and it does not have the abovementioned drawbacks.
Le principe de fonctionnement est le suivant : Un plan porteur immergé (foil) dont l'angle d'incidence est commandé, exerce, lorsque le bateau avance, une force hydrodynamique qui s'oppose à la gîte. The operating principle is as follows: A submerged carrier plane (foil) whose angle of incidence is controlled, exerts, when the boat is advancing, a hydrodynamic force which opposes the heeling.
Cette force tend, comme la force du vent, à provoquer un angle de dérive de la trajectoire ; cette dérive est limitée par la poussée de réaction produite par la coque et si besoin par une surface additionnelle (plan anti-dérive appelé"dérive"). This force tends, like the force of the wind, to cause an angle of drift of the trajectory; this drift is limited by the reaction thrust produced by the hull and if necessary by an additional surface (anti-drift plane called "drift").
La commande de l'incidence du foil peut être mécanique, hydraulique ou électrique, manuelle ou automatique. Cette"commande de gîte"permet à l'équipage de conserver le bateau horizontal, ce qui a pour avantages : * De rendre le bateau plus confortable pour les occupants 'De bénéficier mieux de la poussée du vent car les voiles, restant verticales, offrent leur surface maximum au vent . D'éviter les changements de cap imposés au bateau par les rafales (aulofées) * D'augmenter la surface de voiles et/ou de réduire le lest pour une même taille de bateau, et donc de gagner en déplacement et en vitesse, malgré la traînée induite du foil. The control of the incidence of the foil can be mechanical, hydraulic or electric, manual or automatic. This "heel control" allows the crew to keep the boat horizontal, which has the advantages: * To make the boat more comfortable for the occupants' To benefit better from the wind push because the sails, remaining vertical, offer their maximum surface to the wind. Avoid the changes of course imposed on the boat by gusts (tapered) * Increase the surface area of the sails and / or reduce the ballast for the same size of boat, and therefore gain in displacement and speed, despite the induced foil drag.
PRESENTATION DES DESSINS La figure 1 présente une vue d'ensemble du dispositif sur dériveur léger. PRESENTATION OF THE DRAWINGS Figure 1 presents an overall view of the device on a light dinghy.
La poussée vélique, dont la résultante est une force appliquée en (1), fait gîter le bateau ; la composante latérale de cette force est équilibrée par une force hydrodynamique issue de la portance du plan (3). Ce plan est solidaire du bateau par un axe (4) autour duquel ledit plan peut tourner à l'aide de la commande (5) (par exemple jusqu'à 100 de part et d'autre de sa position axiale neutre). The thrust, the result of which is a force applied in (1), causes the boat to heel; the lateral component of this force is balanced by a hydrodynamic force resulting from the lift of the plane (3). This plane is secured to the boat by an axis (4) around which said plane can rotate using the control (5) (for example up to 100 on either side of its neutral axial position).
Lorsque le bateau commence à gîter, la commande (5) permet de le redresser en donnant de l'incidence au plan/foil (3). Le plan anti-dérive (2) et la partie immergée de la coque (6) s'opposent à une dérive excessive. When the boat begins to heel, the control (5) makes it possible to straighten it by giving incidence to the plane / foil (3). The anti-drift plane (2) and the submerged part of the hull (6) oppose excessive drift.
L'axe (4) solidaire du plan (3) traverse, libre en rotation, le plan (2) sur lequel il s'appuie. The axis (4) integral with the plane (3) crosses, free in rotation, the plane (2) on which it rests.
Le foil (3) peut constituer avec la dérive (2) un ensemble amovible. The foil (3) can constitute with the fin (2) a removable assembly.
La figure 2 présente une vue d'ensemble du dispositif sur monocoque de croisière. Figure 2 shows an overview of the device on a cruising monohull.
Dans ce cas le plan anti-dérive est constitué par la quille (15) et la partie immergée de la coque. In this case the anti-drift plane consists of the keel (15) and the submerged part of the hull.
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La quille comporte un puits (9) dans lequel le foil (3) coulisse d'une position haute inactive à une position basse au moyen du volant (8) et de la tige filetée (7). Le palier (11) est fixe, et le palier (13) se déplace dans toute la hauteur du puits (9). L'axe (10), de section polygonale, commande l'incidence et soutient l'effort latéral. Cet axe coulisse à l'intérieur de la "mèche" (4) du foil, permettant à celui-ci de remonter. The keel has a well (9) in which the foil (3) slides from a high inactive position to a low position by means of the flywheel (8) and the threaded rod (7). The bearing (11) is fixed, and the bearing (13) moves throughout the height of the well (9). The axis (10), of polygonal section, controls the incidence and supports the lateral force. This axis slides inside the "wick" (4) of the foil, allowing it to go up.
Le foil est commandé en incidence par le vérin (12) relié à une pompe hydraulique située dans le cockpit (Cette commande peut être mécanique, hydraulique, ou électrique, manuelle ou automatique (par gyroscope par exemple)). The foil is controlled in incidence by the jack (12) connected to a hydraulic pump located in the cockpit (This control can be mechanical, hydraulic, or electric, manual or automatic (by gyroscope for example)).
La semelle (14) protège l'entrée du puits et le foil lors de l'échouage. Elle réduit les tourbillons marginaux et améliore donc l'efficacité du foil La"mèche" (4) qui se prolonge sur toute la hauteur du foil, est située au tiers de la corde à partir du bord d'attaque, le foil est alors dit "compensé" et nécessite peu d'effort pour être commandé. The sole (14) protects the entrance to the well and the foil during stranding. It reduces marginal eddies and therefore improves the efficiency of the foil. The "wick" (4) which extends over the entire height of the foil, is located at the third of the rope from the leading edge, the foil is then said "compensated" and requires little effort to be ordered.
L'angle d'incidence du foil est répété sur un indicateur visible par l'équipage. The angle of incidence of the foil is repeated on an indicator visible to the crew.
La figure 3 montre une variante dans laquelle la mèche (4) du foil est directement commandée par le vérin (12) porté par le support (13) du foil La figure 4 montre l'application du dispositif sur trimaran. Le foil est situé verticalement sous la coque centrale et agit comme dans le cas du monocoque. FIG. 3 shows a variant in which the wick (4) of the foil is directly controlled by the jack (12) carried by the support (13) of the foil. FIG. 4 shows the application of the device on a trimaran. The foil is located vertically under the central hull and acts as in the case of the monohull.
En marche les deux flotteurs latéraux, de taille réduite, sont hors de l'eau, sauf aux vitesses très faibles pour lesquelles le foil exerce une force insuffisante à équilibrer la
poussée vélique (l'action du foil est proportionnelle au carré de la vitesse), le bateau fonctionnant alors en trimaran classique. When running, the two lateral floats, of reduced size, are out of the water, except at very low speeds for which the foil exerts an insufficient force to balance the
Vélique thrust (the action of the foil is proportional to the square of the speed), the boat then operating in classic trimaran.
La figure 5 montre l'utilisation sur un monocoque comportant des hydrofoils de sustentation, un à l'avant (17), et deux à l'arrière (16) pour la stabilité. Les coques utilisées dans ce cas pour faciliter le déjaugeage sont étroites (type multicoques) et/ou planantes (par exemple coque à redan de type flotteur d'hydravion) EXPOSE D'UN MODE DE REALISATION Voici les caractéristiques du prototype réalisé pour la qualification de l'invention sur dériveur monocoque léger (Figure 1) : * Longueur du bateau : 4,50 m * Largeur du bateau : 1,60 m 'Poids du bateau : 100 kg * Dimension du plan anti-dérive (2) : 30 cm x 60 cm . Dimension du foil (3) : 30 cm x 100 cm APPLICATION INDUSTRIELLE L'invention est applicable aux bateaux à voiles qu'ils soient légers, de croisière ou de course. Elle est industrialisable en particulier par l'emploi des matériaux nouveaux très FIG. 5 shows the use on a monohull comprising hydrofoils of lift, one at the front (17), and two at the rear (16) for stability. The hulls used in this case to facilitate planing are narrow (multihull type) and / or planing (for example a stepped hull of the floatplane type) EXPOSED OF AN EMBODIMENT Here are the characteristics of the prototype produced for the qualification of the invention on a light monohull dinghy (Figure 1): * Length of the boat: 4.50 m * Width of the boat: 1.60 m 'Weight of the boat: 100 kg * Dimension of the anti-drift plane (2): 30 cm x 60 cm. Size of the foil (3): 30 cm x 100 cm INDUSTRIAL APPLICATION The invention is applicable to sailboats, whether light, cruising or racing. It can be industrialized in particular by the use of new materials very
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résistants. Elle est directement adaptable aux bateaux actuels car, prenant appui sur la dérive ou la quille, le dispositif ne requiert pas d'ajout de structures. resistant. It is directly adaptable to current boats because, resting on the centerboard or the keel, the device does not require the addition of structures.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0116364A FR2833567A1 (en) | 2001-12-18 | 2001-12-18 | List control device for sail boat comprises variable incidence hydrofoil mounted under fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0116364A FR2833567A1 (en) | 2001-12-18 | 2001-12-18 | List control device for sail boat comprises variable incidence hydrofoil mounted under fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2833567A1 true FR2833567A1 (en) | 2003-06-20 |
Family
ID=8870620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0116364A Pending FR2833567A1 (en) | 2001-12-18 | 2001-12-18 | List control device for sail boat comprises variable incidence hydrofoil mounted under fin |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2833567A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115503894A (en) * | 2022-10-12 | 2022-12-23 | 张爽 | An A-shaped hydrofoil sailboat |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1195738A (en) | 1957-05-15 | 1959-11-19 | Improvements to lightweight construction materials | |
| US3373710A (en) * | 1966-06-01 | 1968-03-19 | Steinberg Amiram | Hydrofoil boat |
| FR1584377A (en) | 1968-08-14 | 1969-12-19 | ||
| FR2198451A5 (en) * | 1972-09-06 | 1974-03-29 | Chauvin Gilbert | |
| CH631397A5 (en) | 1979-02-02 | 1982-08-13 | Beton Resco Sa | Propulsion device for a light watercraft |
| FR2546475A1 (en) | 1983-05-24 | 1984-11-30 | Barthelet Daniel | Centre-board and keel with adjustable self-orientation and self-inclination and corresponding housing for equipping any craft propelled on water by wind |
| EP0140758A1 (en) | 1983-09-26 | 1985-05-08 | DEDALE, Société dite | Adjustable centre board for sailing vessels |
| DE3437630A1 (en) * | 1984-10-13 | 1986-04-24 | Walter Dipl.-Ing. 2400 Lübeck Bauer | Trimming keel for sailing yachts and model sailing yachts |
| GB2171959A (en) * | 1985-02-14 | 1986-09-10 | Peter James Windibank | Sailing vessel keel |
| US4703708A (en) * | 1985-07-29 | 1987-11-03 | Cohen Daniel L | Steerable keel |
| WO1989003339A1 (en) | 1987-10-17 | 1989-04-20 | Norman Trevor Green | A sailing craft |
| WO1990012733A1 (en) | 1989-04-26 | 1990-11-01 | Unger William J | Keel assembly |
| GB2270040A (en) * | 1992-08-28 | 1994-03-02 | Robin Henry Douglas Adams | Sailing vessels |
| FR2765549A1 (en) * | 1997-07-01 | 1999-01-08 | Jacques Fiocca | STABILIZATION DEVICE FOR SAILING BOAT |
-
2001
- 2001-12-18 FR FR0116364A patent/FR2833567A1/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1195738A (en) | 1957-05-15 | 1959-11-19 | Improvements to lightweight construction materials | |
| US3373710A (en) * | 1966-06-01 | 1968-03-19 | Steinberg Amiram | Hydrofoil boat |
| FR1584377A (en) | 1968-08-14 | 1969-12-19 | ||
| FR2198451A5 (en) * | 1972-09-06 | 1974-03-29 | Chauvin Gilbert | |
| CH631397A5 (en) | 1979-02-02 | 1982-08-13 | Beton Resco Sa | Propulsion device for a light watercraft |
| FR2546475A1 (en) | 1983-05-24 | 1984-11-30 | Barthelet Daniel | Centre-board and keel with adjustable self-orientation and self-inclination and corresponding housing for equipping any craft propelled on water by wind |
| EP0140758A1 (en) | 1983-09-26 | 1985-05-08 | DEDALE, Société dite | Adjustable centre board for sailing vessels |
| DE3437630A1 (en) * | 1984-10-13 | 1986-04-24 | Walter Dipl.-Ing. 2400 Lübeck Bauer | Trimming keel for sailing yachts and model sailing yachts |
| GB2171959A (en) * | 1985-02-14 | 1986-09-10 | Peter James Windibank | Sailing vessel keel |
| US4703708A (en) * | 1985-07-29 | 1987-11-03 | Cohen Daniel L | Steerable keel |
| WO1989003339A1 (en) | 1987-10-17 | 1989-04-20 | Norman Trevor Green | A sailing craft |
| WO1990012733A1 (en) | 1989-04-26 | 1990-11-01 | Unger William J | Keel assembly |
| GB2270040A (en) * | 1992-08-28 | 1994-03-02 | Robin Henry Douglas Adams | Sailing vessels |
| FR2765549A1 (en) * | 1997-07-01 | 1999-01-08 | Jacques Fiocca | STABILIZATION DEVICE FOR SAILING BOAT |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115503894A (en) * | 2022-10-12 | 2022-12-23 | 张爽 | An A-shaped hydrofoil sailboat |
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