home | catalogue | history | references | appendix |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
X- fin
twin blades cambered towards the centre of the board that cross and form a X in cross-section, credited to Scott Bucknell (USA) 1990. Image right, Photo/Jim Russi |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
home | catalogue | history | references | appendix |