DESCRIPTION

The present invention refers to the field of sailing and/or motor boats, like catamarans and trimarans, with variable width. Catamarans are boats, sailing and/or motor boats, well known in the art, consisting of two substantially parallel hulls, connected together through connection means, and living quarters made in a space between and/or on the two hulls and connected to such hulls and/or to such connection means. Trimarans are very- similar to catamarans, but they have a main central hull and two substantially parallel smaller side hulls, which carry out a- stabilizing function, the side hulls being connected to the central hull through connection means, in an analogous way to those used in catamarans. For the sake of simplicity in the description, hereafter we shall only refer to catamarans, whilst any application of the present invention also to boats having more than two hulls remains valid.

A problem connected to sailing and/or motor boats with variable width consists of exploiting the space intended for the living quarters as best possible, during the sailing phases, whatever the width of the boat with variable width may be at the time, so as to obtain positions suitable for hosting at least one person in charge of steering the boat. Indeed, in sailing and/or motor boats with variable width of the prior art, there is a clear drawback when the variable width of the boat is at its minimum, and therefore in a position such that the hulls are virtually next to each other. In fact, in such a position, the space intended for the living quarters between the hulls is practically erased, and therefore it is not possible to foresee a position on the boat suitable for hosting at least one person in charge of steering the boat itself. In this situation of minimum distance between the hulls, the boat is therefore not set up for sailing.

Patent FR 2,663,899 describes a boat designed to house a means that allows its width to be reduced to that of a single monoblock by means of a special symmetrical device. Such living quarters, whatever the width of the boat at the time, have a walking surface that always remains above the height of the hulls, making the boat very slim towards the top, and therefore not very suitable for sailing. Moreover, in the case in which the width of the boat described here is reduced to the minimum, with the two hulls next to each other, excluding the possibility of obtaining a living quarters with a walking surface arranged in the intermediate space between the hulls .

Therefore, the problem remains of obtaining a boat that, whatever its width at the time, has a living quarters with a walking surface obtained between the hulls, capable of hosting at least one member of the crew, whilst still maintaining the criteria suitable for sailing.

Another problem consists in the fact that the walking surface of such living quarters of sailing and/or motor boats with variable width of the prior art is always very narrow, preventing the living quarters from comfortably hosting many people at the same time and preventing more control stations from being obtained inside of it.

Moreover, in the case in which such living quarters are projected so as to have a cover to protect the living quarters themselves from atmospheric agents, like sun and bad weather, the height of such a cover in boats of the prior art is minimal, with consequent problems relative to the good on-board living conditions of the boat itself. Indeed, if the height of the cover of the living quarters is too high, which would allow the members of the crew to stand upright therein, it would be too slim towards the top, with negative consequences for the good dynamic trim and bad sailing. Therefore, boats with variable width, equipped with living quarters with a cover, of the prior art, have a cover that, so as to be able to allow a good sailing trim, is too low with the consequent disadvantage of preventing the members of the crew from operating standing upright.

Another further problem connected to sailing and/or motor boats with variable width consists in the difficulty encountered by the crew of such boats in operating so as to be able to vary the width of the boat, during the sailing phases, without running into enormous difficulties due to the particularly unstable sailing trim of the boat at that particular time.

Indeed, the connection means between the hulls with variable width can, for example, be carried out by means of crossed beams that are generally fixed to the hulls themselves through fixed locking systems, like for example belts, bolts or conical catches. Such fixed locking systems have the drawback of having to be installed/removed each time during the assembly steps of catamarans, like for example the step of preparation for their lowering, and/or disassembly steps, like for example the step for their transportation by road through suitable transportation means, or the step for their harbourage at suitable sites for long periods of time, like small harbours and/or buildings equipped for warehousing or garaging. Unfortunately, however, these assembly/disassembly operations require lots of time and attention in the way with which the various components of the boat are handled so as not to be damaged, creating situations of inconvenience and loss of time.

To try to solve the previously cited problem, connection systems between hulls consisting of hinged beams or folding beams have been described in the prior art: such solutions, however, have proved difficult to carry out and very expensive.

An acceptable solution for solving such a problem, on the other hand, has been described in the patent GB 2,306,406, where a connection system between hulls consisting of at least one telescopic connection beam is used, so as to be able to reduce the width of the boat from a maximum width to a minimum width. Connection means between the hulls consisting of at least one telescopic beam suitable for varying the width of the sailing and/or motor boat with variable width, of the catamaran type, used in the present invention, are, for example, those described in the patent GB 2,306,406. The telescopic beam therein described is essentially formed from a central body, two intermediate sliding bodies and two peripheral bodies fixed to the hulls. The central body, having a length similar to the width of the boat in conditions of minimum width, reduces the distance between the hulls by sliding between the two intermediate sliding bodies; these intermediate sliding bodies, having a width approximately equal to that of the hulls, in turn slide along the two peripheral bodies that are each fixed to one of the two hulls. By this way, the therein described telescopic beam allows the boat to have two configurations: the first, known as sailing configuration, in which the width of the boat is at its maximum; the second, known as rest configuration, for harbourage and/or transportation, wherein the width of the boat is reduced to the minimum, with a width approximately equal to that of the hulls . Such a telescopic connection beam is activated/deactivated by an activation element that transmits a movement to such a telescopic beam, this activation element being based upon the use of conventional means for boats like, for example, winches. The solution proposed in the patent GB 2,306,406, however, has the drawback that such a telescopic beam can only be activated/deactivated in certain operating situations wherein the boat is not in the sailing phase. Indeed, the operator that acts upon the activation/deactivation element of the beam described therein can only act in completely calm conditions, like, for example, when the boat is on land or in protected waters, where by protected waters are meant waters sheltered from waves and/or wind, like for example in small harbours. On the other hand, during sailing phases in unprotected waters, it is not possible to activate/deactivate such a telescopic beam for obvious reasons linked to the trim of the boat. Indeed, the activation/deactivation elements of the telescopic beam itself of the prior art, generally consisting of ropes or winches, do not allow a manoeuvrability suitable for the varying the width of the boat during such a sailing phase in unprotected waters .

Therefore, the problem remains of having a sailing and/or motor boat with variable width wherein ..the, activation/deactivation system of the means suitable for varying the width of the boat can be activated/deactivated even in the sailing phase in unprotected waters.

Summary of the invention

The present invention therefore refers, in a first aspect, to a sailing and/or motor boat with variable width consisting of a) at least two substantially parallel hulls; b) connection means between such hulls consisting of at least one telescopic beam suitable for varying the width of the boat from a minimum width to a maximum wid-th, and vice-versa; c) activation means suitable for transmitting a movement to such a telescopic beam and d) living quarters connected to such connection means and/or to the hulls, characterised in that such living quarters are suitable for having a walking surface between the hulls consisting of at least one first part that is at an intermediate height between the level of the water and the height of the hulls, to obtain a boat that, whatever its width at the time, has living quarters between the hulls capable of hosting at least one member of the crew, whilst still keeping the criteria suitable for sailing.

In a preferred aspect, the present invention refers to such a sailing and/or motor boat with variable width wherein such living quarters are equipped with a cover suitable for protecting such living quarters .

In another aspect, the present invention refers to such a sailing and/or motor boat with variable width wherein such a telescopic beam is actuated by activation means, at any moment during a sailing phase even in unprotected waters, without encountering difficulties due to the particularly unstable sailing trim of the boat at that particular time.

Detailed description of the invention.

The present invention refers to a sailing and/or motor boat with variable width consisting of a) at least two substantially parallel hulls; b) connection means between such hulls consisting of at least one telescopic beam suitable for varying the width of the boat from a minimum width to a maximum width, and vice-versa; c) activation means suitable for transmitting a movement to such a telescopic beam and d) living quarters connected to such connection means and/or to the hulls, characterised in that such living quarters are suitable for having a walking surface between the hulls consisting of at least one first part that is at an intermediate height between the level of the water and the height of the hulls .

In particular, the living quarters of the boat according to the present invention are suitable for having a walking surface between the hulls even when the width of the boat at the time is reduced to the minimum, i.e. when the at least two hulls are brought as close together as possible.

The living quarters of the boat according to the present invention can be connected to such hulls, or else can be connected to such connection means consisting of at least one telescopic beam, or furthermore else can be connected both to such connection means and to such hulls. According to how such living quarters are connected, different embodiments of the present invention can be obtained. In the present context, when a term, like- "living quarters connected to some element" is used, it is meant both the case in which such living quarters are connected directly to such an element, . without any intermediate means, and the case in which such living quarters are connected to such an element through conventional intermediate means known in the art.

In a first embodiment of the boat of the present invention, such living quarters, in the case in which they are connected to such connection means consisting of at least one telescopic beam, are suitable for having a walking surface consisting of a first part at a first level and two side parts at a second level, each of such side parts "being in the direction of one of the hulls with respect to such a first part, such a second level being higher than such a first level. In particular, such a second level is at a height such as to allow such living quarters, when the width of the boat is reduced, to be able to place at least a part of each of such side parts of its walking surface overlapping the upper part of one of the hulls. More specifically, such at least one first part and such two side parts are continuously connected together and being suitable for obtaining at least one control station of the boat, whatever the width of the boat with variable width at the time. Such at least one control station of the boat is obtained by making a) a seating zone, obtained with a sort of engagement by placing at least one part of each of such side parts of the living quarters overlapping at least one of the hulls, and b) a support zone, consisting of such at least one first part of the living quarters .

According to this first embodiment of the boat of the present invention, . "control stations" can be made on¬ board of the boat, wherein' the people in charge of steering the boat or other members of the crew on-board the boat itself can comfortably sit down in the seating zones and allow the lower half of the body to occupy the support zones, making their stay on-board comfortable, with the possibility of a certain freedom of movement. This control station of the boat is particularly preferred in the case of sailing with a motor, or in the case of lack of wind, for a better dynamic trim.

In particular, such living quarters are obtained so as to be able to exploit in depth the space existing between the minimum height of its walking surface and the level of the wateT, on which the hulls rest or are partially sunk. With this embodiment of the living quarters the following are ensured, all at the same time: a) suitable floating of the boat, b) a sufficiently large safety space between the minimum height of the living quarters and the level of the water below, this space being suitable for the sailing of the boat in any wind and sea conditions; and c) a walking surface of the living quarters suitable for the requirements of movements of the people in charge of steering the boat itself or other members of the crew on-board the boat.

In a second embodiment of the boat of the present invention, such living quarters are connected to such hulls. In particular, such living quarters are suitable for having a walking surface consisting of such at least one first part, at an intermediate height between the level of the water and the height of the hulls, and at least one second part sliding on such at least one first part, such at least one second part being at a level such as to allow it to overlap such at least one first part, when the width of the boat is reduced, both such a first and such at least one second part being connected to the hulls. By this way, the following are obtained a) control stations, wherein the people in charge of steering the boat or other members of the crew on-board the boat itself can comfortably be seated on at least one hull allowing the lower half of the body to occupy the walking surface of such living guarters, and b) other stations in the living guarters, defined as λ'walking stations", wherein it is easy for the members of the crew to move along the walking surface of such living quarters.

In a third embodiment of the boat of the present invention, "such living quarters are connected both to such connection means consisting of at least one telescopic beam and to such hulls. In particular, such living quarters are suitable for having a walking surface consisting a) of a first part, at an intermediate height between the level of the water and the height of the hulls and connected to such connection means consisting of at least one telescopic beam, and b) two side parts, connected to such hulls, in the direction of the hulls with respect to such at least one first part. More specifically, such two side parts can slide on such a first part so as to be able to overlap such at least one first part, when the width of the boat is reduced. Preferably, such two sliding side parts are at the same level. By means of this third embodiment, control stations and walking stations are also obtained in the living quarters, like those previously described with reference to the second embodiment of the boat of the present invention. In accordance with such first, second and third embodiments of the boat of the present invention previously described, wherein such living quarters are connected to the hulls, or else are connected to such connection means consisting of at least one telescopic beam, or furthermore else are connected to both such elements cited above, it is clear that the living quarters have a walking surface between the hulls also when the width of the boat with variable width at the time is reduced to the minimum, i.e. when the at least two hulls are brought as close together as possible.

In particular, such living quarters are also suitable for comprising a plurality of zones, each of which is connected to such hulls and/or to such connection means consisting of at least one telescopic beam, as described previously, in the first, second and third embodiment of the present invention.

More specifically, in a fourth embodiment of the boat of the present invention, such living quarters are suitable for comprising a) at least one zone comprising a walking surface like the one described in accordance with the first embodiment of the present invention and b) at least one zone comprising a walking surface like the one described in accordance with the second embodiment of the present invention.

Even more specifically, in a fifth embodiment of the boat of the present invention, such living quarters are suitable for comprising a) at least one zone comprising a walking surface like the one described in accordance with the first embodiment of the present invention and b) at least one zone comprising a walking surface like the one described in accordance with the third embodiment of the pxesent invention..,.

Even more specifically, in a sixth, embodiment of the boat of the present invention, such living quarters are suitable for comprising a) at least one zone comprising a walking surface like the one described in accordance with the second embodiment of the present invention and b) at least one zone comprising a walking surface like the one described in accordance with the third embodiment of the present invention.

Even more specifically, in a seventh embodiment of the boat of the present invention, such living quarters are suitable for comprising a) at least one zone comprising a walking surface like the one described in accordance with the first embodiment of the present invention, b) at least one zone comprising a walking surface like the one described in accordance with the second embodiment of the present invention and c) at least one zone comprising a walking surface like the one described in accordance with the third embodiment of the present invention.

According to such fourth, fifth, sixth and seventh embodiments of the boat of the present invention, it is possible to carry out multiple configurations wherein the members of the crew on-board the boat can freely occupy control stations and walking stations, on the hulls or on the walking surface between the hulls, being able to easily move from one station to the next, also increasing the availability of places on-board the boat. According to such further embodiments of the boat of the present invention, the living quarters also have a walking surface between the hulls even when the width of the boat with variable width at the time is reduced to the minimum, i.e. when the at least two hulls are brought as close together as possible.

In a preferred aspect, the present invention refers to such a sailing and/or motor boat with variable width equipped with a cover suitable for protecting the living quarters from atmospheric agents, like the sun and bad weather. Such a cover is of a size and shape such as to allow the boat to take up a dynamic trim suitable for sailing, the boat equipped with such a cover not being too high, and at the same time such as to allow the members of the crew to be able to occupy standing upright at least a part of such living quarters equipped with such a cover. This represents a considerable advantage with respect to the boats known in the art that had to do without either the cover for reasons of unsuitability for sailing, since the cover is too high, or a comfortable control station of the boat such as to allow the person in charge of such steering and the other members of the crew to stand upright inside the living quarters, under the cover.

In particular, according to such a preferred aspect in which the boat of the present invention is equipped with a cover, it is possible to obtain embodiments of the invention in which part or all of the living quarters are protected by such a cover. For example, in the first embodiment previously described, wherein the living quarters can overlap the hulls, all of the living quarters can be equipped with a cover. In the second embodiment previously described, wherein the living quarters comprise a second part sliding on a first part so as to allow it to overlap such a first part, such a second part can be equipped with a cover. Moreover, in the third embodiment previously described, wherein the living quarters, 'comprise two' parts sliding on a first part so as to allow them to overlap such a first part, at least one sliding part can be equipped with a cover, preferably both of the sliding parts can be equipped with a cover. In the same way, in the fourth, fifth, sixth and seventh embodiments previously described, wherein the living quarters comprise a plurality of zones in which the first, second and third embodiment previously described are combined, each part of the living quarters may or may not be equipped with a cover. Therefore, different embodiments can be obtained wherein no zone is equipped with a cover, or else embodiments in which just one zone, at least one zone or all of the zones are equipped with a cover.

The activation means, used in the present invention and suitable for transmitting a movement to such a telescopic beam, are selected from pneumatic, hydraulic, electric or mechanical means. Preferably, such activation means are hydraulic or pneumatic means.

The connection means between such hulls used in the present invention consist of at least one telescopic beam. In a preferred embodiment, such a telescopic beam consists of two telescopic elements, each of them being bound to each of the hulls and having a section such as to be able to host a connection arm between the two telescopic elements inside of it. Such a connection arm contains two symmetrical cylinders to its inside, each of them being bound on the inside to a common binding point of the connection arm, for example the central point of the connection arm, and on the outside to a piston, each of such pistons being housed inside such telescopic elements and being bound to one of the hulls, at the opposite ', side to which the pistons are bound to such cylinders.

Such activation means are suitable, through a movement transmitted to such a telescopic beam, for varying the width of the boat from a minimum width to a maximum width moving the hulls apart, or, respectively, from a maximum width to a minimum width bringing the hulls closer together. Such activation means are capable of activating the two hulls independently from each other. By this way, such activation means are suitable for allowing the boat to carry out a series of distinct configurations. For example, one configuration can be the one obtained when a first hull is brought towards (moved away from) the second hull;" varying the position of the first hull and leaving the position of the second hull unchanged. Another configuration, vice-versa, can be the one obtained by varying the position of the second hull and leaving the position of the first hull unchanged. Finally, a further configuration can be the one obtained varying the position both of the first and of the second hull. It should be understood that, each time the position of at least one of such hulls is varied, the position of each hull can vary by a variable distance between a minimum and maximum distance, being able to vary by any intermediate distance, without necessarily having to pass from one extreme situation to the other. Moreover, in the case in which the position of both of the hulls is varied, the distance that the position of the first hull is varied can be equal to, less than or more than the distance that the position of the second hull is varied.

Such activation means, used in the present invention, allow the change in configuration of the boat itself in whatever condition. Indeed, the change in configuration of the boat can take place both in the case of completely calm conditions like, for example, when the boat is on land or in protected waters, and in the sailing phase in unprotected waters, unlike the activation means known in the art, for which such a change in configuration during the sailing phase in unprotected waters was very difficult to carry out.

Further characteristics and advantages of the present invention shall become more clear from the following detailed description of a preferred embodiment thereof, made with reference to the attached drawings. In such drawings,

- figures IA, IB and 1C represent a perspective view of embodiments of the boat of the present invention;

- figures 2A, 2B and 2C represent a perspective view of the same embodiments represented in figures IA, IB and 1C, in this case equipped with a cover.

- figure 3 represents an overall view of an embodiment of a boat according to the present invention, wherein the boat take up the configuration of maximum width;

- figure 4 represents the same overall view of figure 3, wherein, however, the boat takes up the configuration of minimum width.

Figure IA represents an example of the first embodiment of the boat 1 with variable width according to the present invention. In such a figure, the two hulls 2a and 2b can pass from the position in which the boat takes up a maximum width to the position in which the boat takes up . a ,minimum width, the latter position being highlighted in figure IA in that the hulls are in the form of a broken line. Whatever the position of the hulls, the living quarters 3 consist of a walking surface between the hulls consisting of a first part 4 at a level that, taking as the point of reference the level of the water below on which the lower parts 5a and 5b, respectively, of the hulls 2a and 2b, rest or are partially submerged, is at a height E, that is lower than G, defined as the height of the upper parts 6a and 6b, respectively, of the hulls 2a and 2b. Moreover, the embodiment of the boat shown in figure IA has a living quarters 3 consisting, as well as of the first part 4 previously described, also of two side parts 7a and 7b arranged at a height L, higher than E and slightly higher than G. The heights L of such side parts 7a and 7b, compared with the heights G of the hulls 2a and 2b, are such as to allow such living quarters 3, when the width of the boat is reduced to a minimum width, to be able to at least partially place each of the side parts 7a and 7b overlapping the upper parts 6a and 6b, respectively, of the hulls 2a and 2b, making a sort of engagement. Whatever the width of the boat with variable width, the boat shown in figure IA has living quarters 3 consisting of a first part 4 and two side parts 7a and 7b, connected together continuously so as to obtain stations for steering the boat. Such stations consist of seating zones, obtained along the side parts 7a and 7b of the living quarters 3 and support zones, obtained along the first part 4 of the living quarters 3, exploiting the height F, defined as the difference in the height L of the side parts 7a and 7b and the height E of the first part 4 of the living quarters 3. Indeed, such a height F is suitable for allowing a member of the crew to steer the boat resting its feet on the first part 4 of the living quarters 3, ■ and sitting down comfortably on the side parts 7a and "7b of such living quarters 3. The embodiment of the boat according to the present invention shown in figure IA is such as to allow good sailing of the boat itself, seeing that the height E of the first part 4 of the living quarters 3 is in any case higher than a minimum height on the level of the water below such as to ensure the safety requirements required for sailing. In figure IA the two telescopic elements 12a and 12b can also be seen, respectively bound to the hulls 2a and 2b, and having a section such as to be able to host inside of them the connection arm 13 between the two telescopic elements 12a and 12b. Such a connection arm 13 is connected to the first part 4 of the living quarters 3 through the binding point 14 of the connection arm 13, to which two symmetrical cylinders, not shown in the figures, are also connected, housed inside the connection arm 13 and suitable for transmitting the movement to the two telescopic elements 12a and 12b.

Figure IB represents an example of the second embodiment of the boat with variable width according to the present invention. In such a figure IB, the living quarters 3 have a walking surface consisting of a first part 4, at an intermediate height E between the level of the water and the height G of the hulls 2a and 2b, and a second part 8 sliding on such a first part 4, such a second part 8 being at a level M slightly higher than the level E of the first part 4 and such .as to allow it to overlap the first part 4, when the width of the boat is reduced (situation carried out in figure IB, in which such a second sliding part 8 and such a hull 2b are in the form of a broken line) . The first part 4 and the second sliding part 8 are connected to the hulls 2a , and 2b, respectively, through the bindings' 15a and 15b.

Figure 1C represents an example of the third embodiment of the boat with variable width according to the present invention. In such a figure 1C, the living guarters 3 have a walking surface consisting of a first part 4, at an intermediate height E between the level of the water and the height G of the hulls 2a and 2b, and two parts 8a ed 8b sliding on such a first part 4, such parts 8a and 8b being at a level M slightly higher than the level E of the first part 4 and such as to allow it to overlap the first part 4, when the width of the boat is reduced (situation carried out in figure 1C, where such sliding parts 8a ed""8b and such hulls 2a and 2b are in the form of a broken line) . In the same way as that which has been seen in figure IA, the two telescopic elements 12a and 12b can also be seen in figure 1C, respectively bound to the hulls 2a and 2b, and having a section such as to be able to host inside of them the connection arm 13 connected to the first part 4 of the living quarters 3 through the binding point 14. On the other hand, the sliding parts 8a and 8b are connected to the hulls 2a and 2b, respectively, through the bindings 15a and 15b.

Figures 2A, 2B and 2C represent a perspective view of the embodiments of the boats shown, respectively, in figure IA, IB and 1C, but, in this case, in such figures 2A, 2B and 2C the covers 9a, 9b and 9c for such living quarters 3 are represented. Moreover, in figures 2A, 2B and 2C it is shown that the maximum height D of such a cover 9a, 9b and 9c allows control stations of the boat to be obtained in which the members of the crew can occupy standing upright at least a part of such living quarters equipped with such a cover. At the same time, the total height A of the boat is limited to a size such as to allow a boat according to the present invention to be obtained that is not too slim towards the top, a thing that could lead to serious sailing problems.

Figure 3 shows an overall view of an example of the fifth embodiment of the boat 1 in accordance with the present invention, wherein the boat takes up the configuration of maximum width. In such a figure 3 the two substantially parallel hulls 2a and 2b and the living quarters 3 situated in an intermediate position between the hull 2a and the hull 2b can be seen. Such living quarters 3 comprise a zone 10 and a zone 11: the zone 10 represents an example "Of the first embodiment of the boat of the present invention, like the one described in detail in figures IA and 2A, such a zone 10 in this case being equipped with a cover 9; the zone 11 represents an example of the third embodiment of the boat of the present invention, like the one described in detail in figures 1C and 2C, such a zone 11 in this case not being equipped with a cover 9. In such a figure 3 different solution embodiments of seating places can be seen, obtained both in the zone 10, through the sort of engagement between the hulls and the living quarters, and in the zone 11, directly on the hulls exploiting the walking surface of the living quarters with the lower half of the body. Walking stations are also displayed both in the zone 10 and in the zone 11. The connection means, suitable for transmitting the movement to the hulls 2a and 2b can also be seen, consisting of the telescopic elements 12a and 12b, respectively bound to the hulls 2a and 2b, and having a section such as to be able to host inside them the connection arm 13 between the two telescopic elements 12a and 12b. Such a connection arm 13 is connected to the first part 4 of the living quarters 3 through the binding point 14 of the connection arm 13, to which two symmetrical cylinders, not shown in the figures, housed inside the connection arm 13 are also connected.

Figure 4 shows the overall view of the boat shown in figure 3, but in this case the boat takes up the configuration of minimum width. Such a figure 4 clearly shows that also in the configuration in which the boat takes up the configuration of minimum width, wherein the distance between the hulls is reduced to the minimum, there is always a space allocated for living quarters 3 between the"hulls 2a and 2b, in which seating stations can be obtained, on the hulls or between the hulls, like for example in the zone 11, and in which control stations of the boat can be obtained such as to allow the members of the crew to stand upright protected by a cover 9, like for example in the zone 10.