Afs Foil

I posted on this under "AFS has a new foil", someone replied who has the newest foil. Website says it is for slalom racing. My old W95 is solid, new is all solid carbon wings/fuselage/mast.

The only issue with the current 85 cm freeride foil is it has the same wing/stab. mounts as my W95, and I had to shim the stab. on the side to make it perfectly square with the mast, and then had to shim each wing with clear tape on one side to make the wings perfectly level with the stab., really makes a difference when everything is aligned. Not a big issue to do it, and I used it for 1-1/2 years without having it aligned, and did not notice a problem. And not all W95 foils had the stab. issue, so maybe the freeride 85 cm foils are fine.

Now on the new foils with 95 and 105 cm masts, the wing/stab. mounts on fuselage are wider, and that should help keep everything aligned, but I have not seen one in person.

Question about AFS foil - there is a good variety of larger wings available, for instance the F1030 and the R800 using the latest naming convention - but how do the larger more modern wings go with the relatively dated 88cm fuselage ?

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timbat said..
Question about AFS foil - there is a good variety of larger wings available, for instance the F1030 and the R800 using the latest naming convention - but how do the larger more modern wings go with the relatively dated 88cm fuselage ?

The F and R series wings and foils differ in attachment. The F series uses the old traditional "dated" fuse and the wings are shaped to fit the more rounded fuse. The R series fuses are a bit more square and won't (according to AFS) fit the older wings. I think the same issue exists retrofitting the new R series wings to the old fuse design. btw, I assume you are referring to the F1080?

I have the F1080 (nee F800) on the old style fuse but with the 95cm mast that's no longer available. It's a wonderful freeride foil for especially lighter riders (say 800 kg or less). I haven't seen the SABFoil 799 up close but they seem similar in plan view. The F1080 is pretty thin so pretty slippery for a bigger wing. The "dated" geometry still holds up very well probably because of the proper sizing and angle of the stab. It's quite stable, similar to my IQFoil and more than a SS Infinity 76 yet carves enough to get praise from my winging friends.

The new AFS R wings are more freerace oriented. Very fast - certainly capable of 30+ kt speeds. Not PWA podium fast but that's not their market at the moment. As we're seeing, that requires more and more expensive thin and high modulus CF masts where AFS is staying in the affordable performance lane along with, say, the Phantom X line.

Lots of good info in this thread - use google translate, etc if your French is like mine: www.windsurfing33.com/forum/viewtopic.php?f=42&t=108706&start=1485

In a world of 115cm fuselages, the AFS 88cm fuselage still has a place ?

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timbat said..
In a world of 115cm fuselages, the AFS 88cm fuselage still has a place ?

I think so!, have not used a longer fuse, but happy with the 88 cm fuse on my W95 foil, easy to move and carve tight turns. That comes in handy when a kite foiler make a gybe right in front of you and heads back towards you cutting across your line.

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timbat said..
In a world of 115cm fuselages, the AFS 88cm fuselage still has a place ?

Yes. The115cm fuselages are designed so that a smaller stab (lower drag) still provides "power" to keep flying at lower speeds going upwind. It's like having a larger child on the shorter side of a teeter totter and a smaller child on a longer one. Fuses for slalom (ie reaching) where outright speed is more important than lower speed lift use shorter fuses in the 100-105 cm range generally.
Since the objective of the AFS 85 is freefoiling, the last bit of speed lost by a larger stabilizer/wing isn't relevant. It remains an easy and stable platform. Switching between a 115cm (plus) race fuse and my AFS95, I find no noticeable difference in stability.
Sailrepair's link above gives good additional info about the differences. Where the AFS shines compared to the longer fused, smaller wing options is more forgiving at low end (see Sailrepairs comments about small wings just dropping when below wind minimums) and it's shorter length makes shorter, sharper jibes easier - again, especially helpful in light air with a small sail.

115cm fuselages specifically exist to NOT put the wing between your feet. But that's for intermediate or advanced foilers going for VMG, not beginners mowing the lawn.

Case in point. A Seattle windfoiler, named GR, foils with this: SB team set 725, 115+, 255(-2 shim), iSonic 127 with sails ranging from 4.2 to 6.2. The iSonic 127 (a fin board) typically has the DT box far aft such that the SB Team Set (front wing further forward of the mast than do the freeride foils) front wing is balanced between his feet. This works. He does not foil with anything else these days.

He is fast and good, and makes his jibes.

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timbat said..
Anyone know anything about the AFS s940 or r940 wing ?

Or was it called the s950 ? Which became the s-840 with their naming area convention change ?

Anyone have a good source for AFS parts ? I'm after the 280 stabiliser which was designed for the S940 wings, which have been discontinued.

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segler said..
There are a LOT of lawn mowers out there using 115 cm fuselages and negative shimming. Seattle, for example. Many of them are using big slalom boards or formula boards with the DT box further aft than with foil boards. This balances the wing for freeride foiling. It's a kludge, but it works for them.

For freeride windfoiling, stick with the ~90 cm range for fuselage length. Your life will be easier.

Agree, I've tried the 115+ unsuccessfully for freeride mowing the lawn with JP135, 800/ 255 wings and 6-7m sails. Footstraps and mast base all the way forward and a lot of body language to try to control the lift. I despise it, really hard to control unless going hard up or down wind (what it's for). It's not for me, it's going in the bin!

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Stretchy said..It's not for me, it's going in the back of Subsonics van!

I fixed that for you.

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Subsonic said..

Stretchy said..It's not for me, it's going in the back of Subsonics van!

I fixed that for you.

Thanks

Oh, just thought I would mention that on the AFS W95 foil the length of the fuse. from the leading edge of the F1080 wing to the trailing edge of the stab. is 81.5 cm, while the overall length of the fuse. is 88 cm due to the overhanging nose and tail.