Hi Rick, This week, I did what you said in this video found the balance point of the front wing and also 44inch mark. Went out today and got my longest flight ever! THANK YOU again for sharing !
WOW, very nice of you to share this with us...Thank you! I am interest to know, how did you come out with 44 inches of distance from the mast's base? Will it be different because of the weight or the high or the size of the sail ? Thanks
44 " seems to be a value that the foil designers base their fuselage lengths on. Note that kiteboard foils have a very short fuselage since the back wing does not need to "lift" a sail by pushing down around the fulcrum of the front wing. Since existing boards have this 44" as a general range, designers came up with the fuselage length that will lift a sail about that far in front of the underwater mast. Yes, I think that variations in sail size and especially mast base pressure will require tweaks of this 44".
Thank you for the info, very interesting to know this is from board designers. What is your AFS's fuselage length? Because, on the market place, I saw 120cm from RRD and 115cm from Star-Board, not to mention other brands.
So would you said, your C/L will serve as a central balance point and the distance to the mast base and the distance to the tail wing is also in proportion one to another depend on the size of the sail / rig weight ? and adjust the distance accordingly, since the fuselage is fix length ?
The back wing pushes down. The front wing lifts up. The front wing also acts as the fulcrum for a big lever that rotates fore and aft. It is this rotation that causes the porpoising (or pogo sticking) of the board in flight. Since the rider's feet are balanced over the front wing, it is the back wing that lifts the front of the board and sail. A longer fuse gives the back wing more downforce leverage. In 2017 and 2018 there is still a lot of variation in all these dimensions as the designers and riders figure all this out. In a year or two everybody will have arrived at the best combination of dimensions to make these windfoils easy and controllable to ride. Just like formula, which took 7 years to figure out. We are now in year 4 (or so) of the whole windfoiling revolution.
Nice to see a video with someone putting thought into their board setup!
Hi Rick, This week, I did what you said in this video found the balance point of the front wing and also 44inch mark. Went out today and got my longest flight ever! THANK YOU again for sharing !
Good. I'm glad that worked for you.
Love it!
Thanks Rick, very helpful!
WOW, very nice of you to share this with us...Thank you!
I am interest to know, how did you come out with 44 inches of distance from the mast's base? Will it be different because of the weight or the high or the size of the sail ? Thanks
44 " seems to be a value that the foil designers base their fuselage lengths on. Note that kiteboard foils have a very short fuselage since the back wing does not need to "lift" a sail by pushing down around the fulcrum of the front wing. Since existing boards have this 44" as a general range, designers came up with the fuselage length that will lift a sail about that far in front of the underwater mast. Yes, I think that variations in sail size and especially mast base pressure will require tweaks of this 44".
Thank you for the info, very interesting to know this is from board designers. What is your AFS's fuselage length? Because, on the market place, I saw 120cm from RRD and 115cm from Star-Board, not to mention other brands.
So would you said, your C/L will serve as a central balance point and the distance to the mast base and the distance to the tail wing is also in proportion one to another depend on the size of the sail / rig weight ? and adjust the distance accordingly, since the fuselage is fix length ?
Measured from the leading edge of the front wing to the trailing edge of the back wing, the fuse length of the AFS-2 is 82 cm.
The back wing pushes down. The front wing lifts up. The front wing also acts as the fulcrum for a big lever that rotates fore and aft. It is this rotation that causes the porpoising (or pogo sticking) of the board in flight. Since the rider's feet are balanced over the front wing, it is the back wing that lifts the front of the board and sail. A longer fuse gives the back wing more downforce leverage. In 2017 and 2018 there is still a lot of variation in all these dimensions as the designers and riders figure all this out. In a year or two everybody will have arrived at the best combination of dimensions to make these windfoils easy and controllable to ride. Just like formula, which took 7 years to figure out. We are now in year 4 (or so) of the whole windfoiling revolution.