Surfboard metal "V" fin aly V fin

Abstract

A surfboard metal fin arrangement; said fin arrangement including two metal fin elements extending from proximate an underside of said surfboard; said two metal fin elements arranged in an inverted “V” formation; metal forming each of said two fin elements having a thickness of between 1.0 and 3.5 mm.

1 . A surfboard metal fin arrangement: said fin arrangement including two metal fin elements extending from proximate an underside of said surfboard: said two metal fin elements arranged in an inverted “V” formation; metal forming each of said two fin elements having a thickness of between 1.0 and 3.5 mm. 
   
   
       2 . The fin arrangement of  claim 1  wherein the surface area of each fin is between 100 and 200 cm square. 
   
   
       3 . The fin arrangement of  claim 1  or  2  wherein said two fin elements extend from a common mounting plate: said “V” formation having an included angle of between 60 and 90 degrees. 
   
   
       4 . The fin arrangement of  claim 3  wherein said two fin elements are joined at the respective base of each of said fin elements: the junction of said fin elements generally coincident with an underside of said mounting plate; said common mounting plate adapted for insertion into a fin box of a surfboard such that the junction of said two fin elements is substantially coincident with an underside of a said surfboard. 
   
   
       5 . The fin arrangement of any on of  claims 1  to  4  wherein said metal is a non-ferrous alloy.