Abstract:
Tills disclosure relates to a windsurfing board kit ( 100 ) for assembling windsurfing boards of different types. In light winds a relatively large windsurfing board is suitable, whereas in strong wind conditions a smaller windsurfing board is suitable, in addition, in fight winds a relatively large sail is suitable, whereas a relatively small sail is suitable in strong wind conditions, in light winds a relatively large board with a centerboard fin is suitable, whereas in strong wind conditions a smaller board without a centerboard fin is suitable. This disclosure enables assembling windsurfing boards of different sizes and different types. In addition, the disclosure enables adjusting the sail area of a sail for lire type of windsurfing board.

Description:
TECHNICAL FIELD 
       [0001]    This disclosure pertains in general to the field of surfing, and more particularly to arrangements for windsurfing. 
       BACKGROUND 
       [0002]    Windsurfing by using a board for windsurfing may be performed in light winds as well as in strong winds. Typically a windsurfing board that is suitable for light winds, is not well suited for strong winds. Also, a windsurfing board that is suited for strong winds is not well suited for windsurfing in light winds. The reasons will be explained in down below. 
         [0003]    A windsurfing board typically comprises a board itself as well as a rig, comprising at least a mast and a sail, where a foot of the mast is designed to meet the board in a mast box. 
         [0004]    A light wind windsurfing board typically has a relatively large board and a sail with a relatively large sail area. The light wind windsurfing board has a centerboard and a tail fin. On the other hand, a strong wind windsurfing board typically has a relatively small board and a sail with a relatively small sail area. It is advantages that the weight of the strong wind windsurfing board is as low as possible and that the bottom side or the so called “wet surface”, i.e. the surface that slides against the water, is as smooth as possible to reduce friction between the strong wind windsurfing board and the water. The strong wind windsurfing board has a tail fin but requires no centerboard fin. It is actually hindered by any centerboard fin. 
         [0005]    In strong winds smaller windsurfing boards are preferably surfed with fin planning, i.e. they are sailed in planning when lying in a relatively high position in the water due to the water&#39;s surface tension. 
         [0006]    Lying in a relatively high position in the water reduces the friction between a planning windsurfing board and the water. The resistance against a planning windsurfing board by the water is thus reduced. The reduced resistance can be translated into an increased forward driving force. 
         [0007]    Due to the wind, a sideways drifting force is exerted on the windsurfing board. The sideways drifting force, in relation to the forward driving force, is therefore lower. 
         [0008]    A fin planning windsurfing board can be sailed with one fin at the tail of the windsurfing board, a so called tail fin, which tail fin sufficiently reduces sideways drifting forces in strong winds. 
         [0009]    In light wind conditions a larger windsurfing board lie in a relatively low position in the water and is sailed in non-planning by using the center board fin to reduce sideways drifting. Since the light wind windsurfing boards are larger than the strong wind windsurfing boards, they are heavier, and since they have a centerboard and a centerboard box for the centerboard fin, they show a higher resistance against the water relative strong wind windsurfing boards without a centerboard and a centerboard box. 
         [0010]    Without centerboard box for the strong wind windsurfing boards, the resistance against the water as compared to the light wind windsurfing boards having a centerboard box, is reduced and therefore lends the strong wind windsurfing boards improved sailing properties in planning conditions. 
         [0011]    A centerboard box in a windsurfing board increases the resistance against the water for said windsurfing board. The bottom of a strong wind windsurfing is therefore made smooth without a centerboard box. A relatively low resistance windsurfing board hence lends said windsurfing board relatively good sailing properties in planning conditions. In addition, a centerboard in a windsurfing board also increases the weight of the windsurfing board due to the weight of the centerboard and the centerboard fin box. There is thus another advantage not use a centerboard in a strong wind windsurfing board. 
         [0012]    A light windsurfing board can not be planning in the water in light winds, whereas a strong windsurfing board is designed for planning in the water in strong winds. Needless to say, windsurfing is to a large extent dependent on the windsurfing skill of the person that is windsurfing, for which reason light winds are better suited for beginners, whereas strong winds mainly attract persons already skilled in the art of windsurfing. 
         [0013]    Dependent on the wind and the surfer&#39;s surfing skills a variety of windsurfing boards are needed. Having a variety of wind surfing boards may be a transportation and storage challenge, since each board consumes substantial space. 
         [0014]    The patent application EP0052783 A1 discloses a windsurfing board comprising a first portion and a second portion, wherein the first portion comprises a centerboard and the second portion comprises a fin at the tail of said second portion. The second portion is rotatable in relation to the first portion, providing the windsurfing board with two alternative bottom shapes of the second portion when lying in the water. 
         [0015]    From DE101145806 it is known to improve the gliding properties of a windsurfing board, for instance, by providing cut-outs from the tail at the bottom side of the windsurfing board. 
         [0016]    There is thus a need for an alternative windsurfing board by which the transportation and storage challenge is essentially solved. 
       SUMMARY 
       [0017]    An object of the present disclosure is to address at least some of the issues outlined above, and to provide a windsurfing board that is easily adaptable according to surfing conditions and/or to the skill of the surfer. 
         [0018]    This is attained by providing a windsurfing board kit for assembling different types of windsurfing boards. 
         [0019]    In addition, the size of a sail of the windsurfing boards may be adapted to suit the preferences of a surfer at certain wind or weather conditions. 
         [0020]    According to one aspect of the present disclosure a windsurfing board kit for assembling different types of windsurfing boards is provided. The windsurfing board kit comprises a first portion comprising a first bottom side, and a first tail fin provided on said first bottom side, and a second portion comprising a second bottom side and a second fin provided on said second bottom side. The second portion is removably connectable to the first portion. 
         [0021]    The first portion constitutes a first windsurfing board suitable for strong winds and the first portion connected to the second portion constitutes a second windsurfing board suitable for light winds and in which second windsurfing board the first tail fin acts as a center board of the second windsurfing board and the second fin acts as a tail fin of the second windsurfing board. 
         [0022]    The second windsurfing board of the windsurfing board kit may have a bottom side that is formed by the entire or essentially the entire first bottom side of the first portion and the entire or essentially the entire second bottom side of the second portion, when the first portion is connected to the second portion. 
         [0023]    The first portion of the windsurfing board kit may have at least one cut-out from the bottom side at the tail of said first portion. 
         [0024]    The second portion of the windsurfing board kit may have a protruding element that is protruding from the second portion, wherein said protruding element is configured to meet a cut-out of the first portion, when the second portion is connected to the first portion. 
         [0025]    The second portion of the windsurfing board kit may have a protruding means that is configured to meet a recess in the rear of the tail of the first portion, the recess being directed essentially along, or at least parallel with, a centerline “A” of the second portion. 
         [0026]    The first portion of the windsurfing board kit may comprise a base portion comprising a third bottom side, a side rail and a first tail fin provided at said third bottom side, and one or two elongated side portions that are removably connectable to the base portion along at least one side rail. The base portion constitutes a third windsurfing board suitable for very strong winds. 
         [0027]    The windsurfing board kit may further comprise a sail that is configured for a windsurfing board. The sail comprises a first sail portion that has a mast sleeve, a rear leech, and one or more first batten pockets, and a second sail portion that has a front leech, a rear leech and one or more second batten pockets, where the second sail portion is removably connectable to the first sail portion by one or more fastening means, wherein said one or more second batten pockets are arranged to correspond to said one or more first batten pockets, enabling each first and second batten pocket to meet a first and a second end, respectively of a batten. 
         [0028]    The second sail portion of the windsurfing board kit may be connected to the first sail portion, wherein the sail further comprises one or more battens of which one end of each one or more battens is inserted into one of the first batten pockets, and the other end of each one or more is inserted into one of the second batten pockets, and where one or more battens are directed essentially perpendicular to the rear leech of the first sail portion as well as to the front leech of the second sail portion. 
         [0029]    The rear leech of the second sail portion of the windsurfing board kit, may end at a clew of the first sail portion, when the first sail portion is connected to the second sail portion. 
         [0030]    By providing a windsurfing kit from which three different windsurfing boards can reversibly be formed, and two different windsurfing sails, it is enabled to tailor the choice of windsurfing board according to weather conditions and the surfing skills. 
         [0031]    In addition, a further advantage of embodiments of the present disclosure is that the windsurfing kit saves space and transportation cost, as compared to up to six separate complete surfing boards, and may therefore be considered to be a green alternative to a variety of windsurfing boards. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0032]    These and other aspects, features and advantages of which this disclosure is capable of, will be apparent and elucidated from the following description of embodiments of this disclosure, reference being made to the accompanying drawings, in which 
           [0033]      FIGS. 1-6  illustrate aspects of a windsurfing board kit according embodiments of the present disclosure; 
           [0034]      FIGS. 7 and 8  illustrate aspects of a sail according to embodiments of the present disclosure; and 
           [0035]      FIG. 9  presents a windsurfing board kit comprising a sail, according to embodiments of the present disclosure. 
       
    
    
     DETAILED DESCRIPTION 
       [0036]    According to a basic concept of this disclosure, a strong wind windsurfing board is converted to a centerboard windsurfing board suitable for light winds. 
         [0037]      FIG. 1  schematically presents a bottom-side view of a first windsurfing board  100  of a windsurfing board kit, according to embodiments of the present disclosure. The windsurfing board kit is suitable for assembling different types of windsurfing boards. 
         [0038]    The first windsurfing board kit  100  comprises
       a first portion  102  comprising a first bottom side  106  and a first tail fin  108  provided on said first bottom side, and   a second portion  104  comprising a second bottom side  112  and a second fin  114  provided on said second bottom side  112 . The second portion  104  is removably connectable to said first portion  102 .       
 
         [0041]    The first portion  102  constitutes a first windsurfing board that is suitable for strong winds. The first portion connected to the second portion  104  constitutes a second windsurfing board that is suitable for light winds. Within the second windsurfing board, the first tail fin  108  acts as a center board of the second windsurfing board and the second fin acts as a tail fin of the second windsurfing board. 
         [0042]    The first tail fin  108  may protrude from the bottom side  106  of the first portion  102 , whereas the second fin  114  may protrude from the bottom side  112  of the second portion  104 , in the second windsurfing board  100 . 
         [0043]      FIG. 1  schematically illustrates that the first tail fin  108  and the second fin  114  are directed perpendicular to the bottom side  106 ,  112  of the first portion  102  and the second portion  104 , respectively. It is also illustrated cut-outs  115  from the second portion at the tail of said second portion. 
         [0044]    It is also illustrated that the first tail fin  108  and the second fin  114  are provided separated from each other at a distance along an elongation axis of the windsurfing board. 
         [0045]    The first windsurfing board of the windsurfing board kit  100  is typically a fin planning windsurfing board having a single fin-box for said first tail fin  108  at the tail  110  on the bottom side  106  of the first windsurfing board  102 . 
         [0046]    The second windsurfing board of the windsurfing board kit is typically a displacement type of windsurfing board, when the first portion  102  is connected to said second portion  102 . 
         [0047]    The bottom side of the second windsurfing board may be formed by the entire or essentially the entire bottom side  106  of the first windsurfing board  102  and the entire or essentially the entire bottom side  112  of the second portion  104 , when the second portion  104  is connected to said first portion  102 . 
         [0048]    The bottom side of the second windsurfing board may thus comprise at least a substantial part of the bottom side  106  of the first windsurfing board  102  and at least a substantial part of the bottom side  112  of the second portion  104 . 
         [0049]    In addition, the bottom side  106  of the first windsurfing board formed by the first portion  102  has a bottom shape. 
         [0050]      FIG. 2  is a side-view of a windsurfing board kit  100  where the first portion  102  and the second portion  104  are connected to each other, forming the second windsurfing board. The first tail fin  108  of the first portion is directed perpendicular to the bottom side of the first portion. The second fin  114  of the second portion is directed perpendicular to the bottom side of the second portion. 
         [0051]      FIG. 2  also depicts a cut-out  115  of the second windsurfing board of the windsurfing board kit  100 . 
         [0052]      FIG. 3  schematically presents a bottom view of the windsurfing board kit  100 , according to embodiments of the present disclosure, where the second portion  104  of the windsurfing board kit  100  is separated from the first portion  102  of said windsurfing board kit. 
         [0053]    The first portion  102  comprises the first tail fin  108  directed perpendicularly to the bottom side  106  of the first portion  102 , and on this  FIG. 3  protrude out of the paper sheet/screen of the reader. Said first portion  102  also comprises a cut-out  116  from the bottom side  106  of said first portion  102 . 
         [0054]    As indicated in  FIG. 3 , the second portion  104  comprises the second fin  114  being directed perpendicularly to the bottom side  112  of the second portion  104 , and on this  FIG. 3  protrudes towards the reader of this disclosure. 
         [0055]    The second portion  104  may comprise a protruding element  118  that is configured to meet a cut-out  116  of the first portion  102 , when the second portion  104  is connected to the first portion  102 . The protruding element  118  has an outer rim  119  that can be adapted to meet an inner rim  117  of the cut-out  116  of the first portion  102  of the windsurfing board kit  100 , when the first  102  and second  104  portion are connected to each other. 
         [0056]    The second portion  102  may also comprise protruding means  120  that configured to meet a recess in the rear of the tail  110  of the first portion  102 , where the recess is directed essentially along, or at least parallel with, a centerline (A) of the second portion  104 . The centerline is a elongation line of the second portion  104 . When connecting the second portion  104  onto the first portion  102 , the protruding means  120  therefore fits into a recession of the tail of the first portion  102 . 
         [0057]    The protruding means  120  may be a tubular in shape, and for instance be a metal tube. The recession in the first portion  102  may be a tubular hole with a depth that corresponds to the length of the protruding means  120 . 
         [0058]    Needless to say the protruding means  120  and the recession may have a cross section with a shape different from tubular, such as square or any other polygonal form. 
         [0059]      FIG. 3  also illustrates cut-outs  115  from the bottom side  112  of the second portion  104 . 
         [0060]    In addition, the shape of the second portion as seen from below, for instance as bottom view of  FIG. 3 , is reminiscent of a U-shaped form. Whereas the rear part (as presented to the left in  FIG. 3 ) corresponds to a base of a “U”, elongated members  123  correspond to the sticks of the “U”. When connecting the second portion  104  to the first portion  102  an inner face  126  of each elongated member  123  contacts the side rail  125  of the first portion  102 . 
         [0061]    By mounting each end of the elongated member  123  into each side rail  125 , the second portion  104  is connected to the first portion  102 . Needless to say mounting made be performed in many different ways. 
         [0062]    The cut-outs  116  as well as the protruding means  120 , in tight collaboration with protruding elements  118  and the recession (not shown) orient the second portion  104  in position to the first portion  102  when connected and prevent lateral movements of the second portion  104  relative to the first portion  102 . 
         [0063]    Lateral movement are herein understood as movements perpendicular to the bottom side, or top side, of a windsurfing board. 
         [0064]    In the following, the protruding elements  118  of the second portion  104  will be described in some detail.  FIG. 4  illustrates a zoom-in of one part  128  of the second portion  104 , and hence presents a cut-down partition of said second portion  104 . In  FIG. 4  two protruding elements  118  are shown. These protruding elements  118  meet and interact with the cut-outs of the first portion  102 , when the first portion  102  is connected to the second portion  104 . 
         [0065]    The protruding elements  118  protrude from a front face  130  of the second portion  104 , in a direction along and towards a longitudinal center line A, of  FIG. 4 , of the second portion  104 . Moreover, the protruding element  120  protrudes from the front face  130  along the longitudinal center line A. 
         [0066]    The reference numeral  132  denotes a top side of the second portion. 
         [0067]    As mentioned above, the first portion  102  constitutes a first windsurfing board on its own, which is suitable for strong winds, i.e. without having the second portion  104  connected to the first portion  102 .  FIG. 5  is a side-view of the first portion  102  of this first windsurfing board that is suitable for strong winds. 
         [0068]    It is illustrated that the first tail fin  108  is directed perpendicular from the bottom side  106  of this first windsurfing board  134 . In addition, at the tail  110  of said first windsurfing board  134  a cut-out  116  from the bottom side  106  is presented. 
         [0069]    It is noted that this first windsurfing board has a first tail fin  108  at the tail only of the surfing board. This is in contrast to the second windsurfing board as presented above which second windsurfing board is suitable for light winds. 
         [0070]    The second windsurfing board constitutes of the first portion  102  when being connected to the second portion  104 . The first tail fin  108  of the first portion acts as a center board of the second windsurfing board and the second fin  114  of the second portion  104  acts as a tail fin of the second windsurfing board. The second fin  114  is thus positioned at the tail  122  of said second windsurfing board, whereas the first tail fin  108  is positioned further towards the front of the second windsurfing board, acting as a centerboard. 
         [0071]    The first tail fin  108  of the first portion  102  is hereby given the function of a centerboard for the second windsurfing board. A centerboard is suitable for windsurfing boards that are relatively large and for light wind conditions, as surfing without a centerboard in light winds easily results in an un-desired course deviation. 
         [0072]    Since the first windsurfing board as presented in  FIG. 5  does not have the second portion connected it, it is smaller than the second windsurfing board, and hence is suited for strong winds, whereas the second surfing board is suited for light winds. In strong winds there is no need for a centerboard, since the first tail fin  108  can stabilize the direction of the first windsurfing board at high forward speeds. How to manage a windsurfing board in various winds is off the scope of the present disclosure, and will hence not be discussed further. 
         [0073]    In conditions of even stronger winds, it may be desired to have a windsurfing board that is even smaller than the first windsurfing board  134  of the first portion  102 . For this reason, a third windsurfing board can be assembled from the windsurfing board kit. 
         [0074]    The first portion  102  may comprise a base portion  138  that comprises a third bottom side  139 , a side rail  143  and the first tail fin  108  provided on said third bottom side, and one or two elongated side portions  140  that are removably connectable to the base portion  138  along said side rail  143 . The base portion  138  constitutes a third windsurfing board suitable for very strong winds. 
         [0075]      FIG. 6  presents the first portion  102  comprising said base portion  138  and one or two elongated side portions  140  that are removably connectable to the base portion  138 . The one or two elongated side portions  140  have an inner surface  141  that is configured to meet and align along side rails  143  of the base portion  138 . 
         [0076]    Again, the base portion  138  constitutes the third windsurfing board that is suitable for even stronger winds than the second windsurfing board is suitable for. The first tail fin  108  of the first portion forms a tail fin of the base portion  138  of the third windsurfing board. 
         [0077]    The elongated side portions  140  may have essentially the same length, along an elongation axis of the base portion, as the base portion  138  itself. Alternatively, the one or more elongated side portions  140  may have a length different from, for instance shorter than, the base portion. In this case the elongated side portions  140  may be aligned along the side rails from a position substantially different from a front end  145  of the base portion  138 , and to a position essentially at the tail of the base portion  138 . 
         [0078]    As presented earlier,  FIG. 6  also depicts one of the cut-outs  116  at the tail of the base portion  138 . 
         [0079]      FIG. 6  presenting a top-side view of the surfing board  136 , also presents arrangements  142  for fastening of the first tail fin  108  to the base portion  138  of the first portion  102 . These arrangements may be formed by cylindrical through holes in the base portion  138 . 
         [0080]    If the base portion  138  is used on its own without the elongated side portions  140  connected to said base portion  138 , the first tail fin  108  forms acts a tail fin of the base portion and therefore also of the third windsurfing board. 
         [0081]    If the base portion  138  is connected to the elongated side portions  140 , the first tail fin  108  acts a tail fin of the first portion, and therefore also the first windsurfing board. 
         [0082]    It is also mentioned that the recess into the rear of the first portion  102 , which recess is configured to meet a protruding means  120 , is in fact a recess into the base portion  138 . The base portion  138  is a major and central part of the first portion  102 . This has the advantage that the second portion  104  is connected to the major and central part of the first portion when connecting said second portion  104  to the first portion  102  and building the second windsurfing board. The second portion  104  is therefore well stabilized in relation to the first portion  102  when connecting them together forming the second windsurfing board. 
         [0083]    It is also noted that  FIG. 6  schematically presents a mast box  144  for fastening a mast with a sail, for forming a windsurfing board comprising a sail. 
         [0084]      FIG. 7  presents a rig for a windsurfing board related to embodiments of the present disclosure. The rig comprises a mast  146 , a boom  147  and a sail, which sail will be further presented down below. 
         [0085]    The sail for a windsurfing board, according to embodiments of the present disclosure, may advantageously be combined with any one of the windsurfing boards as presented above, i.e. the first, second or third windsurfing board. The sail comprises
       a first sail portion  148  having a mast sleeve  149 , a rear leech  151 , and one or more first batten pockets  152 , and   a second sail portion  150 , having a front leech  154 , a rear leech  156  and one or more second batten pockets  158 ,
 
where the second sail portion  150  is removably connectable to the first sail portion  148  by one or more fastening means, wherein said one or more second batten pockets  158  are arranged to correspond to said one or more first batten pockets  152 , enabling each first and second batten pocket to meet a first and a second end, respectively, of a batten.
       
 
         [0088]      FIG. 8  presents a zoom-in of the second sail portion  150 , comprising second batten pockets  158 . In each of these second batten pockets  158  one end of a batten  160  may be inserted. Another end, opposite to the one end, of each batten  160  may be inserted into a first batten pocket  152  positioned at a location of the sail  148  which location corresponds to the one of the second batten pockets  158  of the second sail portion  150 , for one and the same batten  160 . 
         [0089]    The fastening means for fastening the rear leech  151  of the first sail portion  148  to front leech  154  of the second sail portion  150  may comprise one or more means of the group comprising zipper, buttons and Velcro © fastening means. 
         [0090]    It should be mentioned that the second sail portion  150  for a windsurfing board is configured to be removably connectable to a first sailing portion  148 . When being connected, the front leech  154  of the second sail portion  150  essentially aligns along the rear leech  151  of the first sail portion  148 . For this reason, the front leech  154  of the second sail portion  150  has its one end near a clew  153  of the first sail portion  148 , at which the first sail portion may be tightened to the boom  147 . For the reason that the second sail portion  150  does not require a different boom length, the same boom length may be preferably used when having a rig with the first sail portion, and a rig having the first and the second sail portion. Needless to say the same boom tension may be used as well. 
         [0091]    It is also advantageous that since the foot of the sail is not used for connecting an additional sail, the same mast foot is preferably used for the two different sail settings as described above. 
         [0092]    Since the second sail portion is removably connectable to the rear leech of the first sail portion, the same downhaul tension may be preferably be used for the two different sail settings of which includes the second sail portion, and the other does not include said second sail portion. 
         [0093]    It may be pointed out that the rear leech  151  of the first sail portion  148  typically runs from the top of the first sail portion  148  down to the clew  153  of said first sail portion. 
         [0094]    The present disclosure has presented a windsurfing board kit for assembling windsurfing boards of different types. The windsurfing boards of different types are adjustable in both length and width by using an intelligent combination of windsurfing portions, which when connected to each other can form windsurfing boards of three different types windsurfing boards, with markedly different sailing properties. 
         [0095]    The second windsurfing board comprising all portions is suited for light winds conditions, and thus for beginners. The first windsurfing board comprising the base portion and elongated side portions, is suited for strong winds and may better suit modest surfer. The third windsurfing board comprising the base portion and having neither the elongated side portions  140  nor the second portion  104  is suited for even stronger winds and hence an advanced windsurfer. 
         [0096]    In addition, the present disclosure has also presented a sail that is adjustable in sail area. The second sail portion may be used and is then connected to the first sailing portion, whereby the sailing area may is increased in size. One example of increase of the sail area is an increase from about 6 square meters to about 7 square meters in size. 
         [0097]    Whereas the sail with the first sail portion is suited for strong or very strong winds or wind conditions, the larger sail portion is suited for light winds or wind conditions. 
         [0098]    The present disclosure also presents combinations of windsurfing boards with sails. Since three different sizes of windsurfing boards and two different sizes of sails have been presented, the disclosure comprises a combination of 6 different windsurfing boards including a sail. Since the present disclosure presents multiple combinations of windsurfing boards and sails, a fully equipped windsurfing board may be easily tailored according to current wind conditions as well as to the skill of the surfer. 
         [0099]      FIG. 9  illustrates an equipped windsurfing board  165  comprising a combination of one example of the windsurfing boards as presented above together with an example  164  of the sails as presented above. The windsurfing board itself  162  comprises a first tail fin  108  protruding from a bottom surface  163  of said windsurfing board  162 .  FIG. 9  also presents one cut-out  116  of the first portion  102 , as earlier presented, for instance, in  FIG. 5 . 
         [0100]    It may be mentioned that cut-outs formed out of a bottom side of a windsurfing board in general may be considered to provide stability benefits of a windsurfing board having a wider tail and planning in the water at an early stage. The cut-outs also provide a decreased water resistance due to the relatively narrower tail of windsurfing boards having cut-outs. A windsurfing board having cut-outs improves its speed potential and its maneuverability at high speeds. In addition, they may also reduce the tendency to suck into the water for wider windsurfing boards. 
         [0101]    In addition to the advantages of the embodiments of this disclosure, as already presented in the text above, some embodiments also have the following advantages: 
         [0102]    By providing a combination of three different boards for windsurfing, and two different windsurfing sails, it is enabled to tailor the choice of a windsurfing board according to weather conditions and the surfer&#39;s surfing skills. 
         [0103]    In addition, a further advantage of the embodiments of the present disclosure is that the windsurfing board kit saves space and transportation cost, as compared to up to six separate complete windsurfing boards, and may therefore be considered to be environments friendly. 
         [0104]    It is made clear that presented embodiments may well be combined forming new embodiments not explicitly described herein. 
         [0105]    In the claims, the term “comprises/comprising” does not exclude the presence of other elements or steps. Additionally, although individual features may be included in separate claims, these may be combined, and the inclusion in different claims does not imply that a combination of features is not feasible and/or advantageous. In addition, singular references do not exclude a plurality. The terms “a”, “an”, “first”, “second” etc do not preclude a plurality. Reference signs in the claims are provided merely as a clarifying example and shall not be construed as limiting the scope of the claims in any way. 
         [0106]    Although this disclosure has been described above with reference to (a) specific embodiment(s), it is not intended to be limited to the specific form set forth herein. Rather, this disclosure is limited only by the accompanying claims and, other embodiments than the specific above are equally possible within the scope of these appended claims.