Kite and wing rig

Abstract

The invention relates to a support structure of a kite or wing rig, wherein portions of at least one strut are made of a material different from that of a front tube/leading edge or of another strut.

1 . A kite or wing rig with an inflatable support structure which comprises a leading edge and at least one strut attached thereto and which puts up a canopy, characterized in that at least a partial region of an outer skin of a strut is manufactured of a different material, preferably a lighter material with a lower area weight, than the material of the leading edge or of other struts. 
     
     
         2 . The kite or wing rig according to  claim 1 , wherein the support structure comprises a plurality of struts consisting of materials with different area weights. 
     
     
         3 . The kite or wing rig according to  claim 1 , wherein a center strut is manufactured of a material with an area weight higher than that of external struts. 
     
     
         4 . The kite or wing rig according to  claim 3 , which is made with five struts, wherein a center strut and quarter struts are made of a material heavier than that of trip struts. 
     
     
         5 . The kite or wing rig according to  claim 3 , wherein at least portions of the center strut or the quarter strut are made of the same material as that of the leading edge. 
     
     
         6 . The kite or wing rig according to  claim 1 , wherein the heavier material of the outer skin has an area weight of more than 120 g/m 2 , preferably more than 130 g/m 2 , and the lighter material has an area weight of less than 100 g/m 2 , preferably less than 90 g/m 2 . 
     
     
         7 . The kite or wing rig according to  claim 5 , wherein the heavier material is Dacron® and the lighter material is a cloth/laminate commonly used for canopies/spinnakers. 
     
     
         8 . The kite or wing rig according to  claim 7 , wherein both materials are made on a polyester basis. 
     
     
         9 . The kite or wing rig according to  claim 1 , wherein, in the binding region to the leading edge, the strut is formed of a heavier material than the material of the strut used in the region of a trailing edge. 
     
     
         10 . The kite or wing rig according to  claim 1 , wherein the leading edge is formed of a lighter material toward the tips than in a middle region.