Axis 1099

[JohnnyTsunami]

I’ve had some sessions where the 999 is just doing weird shit, think it’s usually related to rapid changes of depth, maybe it’s currents, honestly not sure, but it becomes scarily unpredictable.

I’m getting frustrated at the same thing on the 899. I put on the gas and funky stuff happens like it wants to dive over 20mph every time. It catches me off guard as I’m leaning more forward expecting more lift and suddenly it reverses. Really hard to diagnose although I know it’s not due to a breach. Maybe eelgrass, loose stabilizer, foil sucking air? I can’t see going back to lower ar foils though, so I’m going to have to tweak things I guess.

I have a 10AR wing from another brand that has none of these problems, so it’s not a high AR thing.

[AnkleHighWaveShredder]

As i got good informations in this thread and the general Axis thread for my decision for what Axis gear to buy i will also throw my two cents in:
I'm an 195 lbs (88 kg) intermediate wing riding mostly on lakes and occasionally open sea - unfortunatelly no acces to waves. Still i chose the ART 899 (with 82mast, short fuse, 375p) for strong wind. And for this it is amazing. But it turned out that it is now also my first choice for all conditions - as soon i have figured out in the lower wind range, that i have to be patiened enough to wait for the right board speed before pushing it gently up . I wouldn't had believed that a 850cm² will be my Standard Wing Foil considering my frame. I have also ridden the 999 in light wind and that brings me up with the slightest pressure in the wing and can also be pumped like an low aspect foil. But i like the 899 so much more for beeing even faster and for throwing fast, hard turning jibes and tacks as the 999 has to much lift for this IMO. In the tacks i have to take care to be fast enough but with the jibes i usually can't stall the 899 as you loose hardly any speed. In really powered conditions i tried the 799, which makes then jibes and turns even more fun - but this foil would be defenitely to small for me for lighter winds.
Matt Nuzzo shimmed the tail (in the way to reduce lift (lifting the front edge of the stabilizer)) and reports to got it faster with even less drag - has anyone similar results with shimming or other tails?

[jondrums]

I believe the 8/9/1099 are all a bit more susceptible to water turbulence then a lot of the thicker lower aspect surf style wings.  I can even feel it crossing behind another winger's wake in the water.  But even more so going through disturbed white-water from a broken wave.  It can be downright scary riding through foamy water or the edge of a rip current.  Especially with the flexiness in the wings, it gets really wiggly.

[PonoBill]

Hmm, that's the opposite of my experience, though I'm not usually dealing with turbulence, more often it's swell and waves. At my weight, the 999 cuts through a swell like it isn't there. You can follow the contour of the swell or a wave if you like. but it takes conscious control. If you just go straight on it slices through with no effect. My board sometimes touches the top of a swell and that's the only signal I get that I've just powered through one.

The other day I was getting bashed around by chop and swell on a 40+mph day on my 980. I mentioned to Stephen Ross when we were packing up that if I had been on the 999 I wouldn't have felt a thing, but I would have hit Mach one on the downwind leg of jibes.

[Solent Foiler]

Matt Nuzzo shimmed the tail (in the way to reduce lift (lifting the front edge of the stabilizer)) and reports to got it faster with even less drag - has anyone similar results with shimming or other tails?

Yes - tried the 799 with 325 on US fuse shimmed leading edge up and pitch control became an issue. It was really rough, choppy conditions but not usual for here so swapped in a trailing edge up shim and felt a tiny bit less glide but the pitch control was way better so could push harder.

Not had any weird behaviour from any of my ARTs, but my first guess would be mast ventilation if it's dropping out on you. These are wide wings so will have more leverage to push the mast around when going through turbulence but I haven't noticed anything unusual compared to other foils there either (going through propeller wash etc), but I'm not usually in waves.

[daswusup]

I tried shimming the back of the stab up(increasing lift) with the Axis shim that came with my 980. I was on the 1099/375p/CS/86 carbon and it did exactly what I expected. Stall speed seemed slightly higher which allowed me to slow down to the speed of the chop. It also lifted off sooner than without. The problem is that I have become such a "Drag Whore" that none of the benefits outweighed the problem of added drag.

[PonoBill]

I tried shimming the back of the stab up(increasing lift) with the Axis shim that came with my 980. I was on the 1099/375p/CS/86 carbon and it did exactly what I expected. Stall speed seemed slightly higher which allowed me to slow down to the speed of the chop. It also lifted off sooner than without. The problem is that I have become such a "Drag Whore" that none of the benefits outweighed the problem of added drag.

Ditto. I shimmed the heck out of the front screw (less lift) my 390 to reduce the drag, and it made for a nice, easy-to-manage combo. But currently, I ride the 999 with a 400/60 and it's well mannered just as is. If the wind is strong and I want some more control I put the 390 back on, but it feels like I'm dragging a brake.

[AnkleHighWaveShredder]

Good to hear all your experiences from shimming - As i would like to use my 999 for the lighter days with still having fun in jibes i will try to shim it for less lift with the hope to get rid of the tons of lift in harder turns. Maybe the short fuse helps with not getting it too pitchy. Maybe i will loose all the benefits of getting up in light conditions. However, i will try and report.

I also didn't expect any strange things when pushing (going up to 40km/h ) the 799, 899 or 999 through all kind of rough waters. Although i have experinced strange "stalls" even in flat water when trying to "speed" with the 890 (with 390 tail).

[Dwight (DW)]

 I put on the gas and funky stuff happens like it wants to dive over 20mph every time.

The rear stab is there to stop that. Usually when this happens, it’s the stab. Wrong size, wrong shim, etc. Need a given counter force to stop the dive at that speed. With the right counter force you will hit a wall top end wise, but no more nose dives. You are at the limit for a given front wing. 

The progressive tails are the best at preventing nose dives, while not adding drag. That was the magic sauce when I first rode the prototype.

[Sam the Surfer]

Winds were 10-16 today. The 1099 is unbelievable. Hit over 20 mphs in 12-16 mph wind. The ultra short fuselage and 375 rear cranks turns. In fact, I was getting the tip out of the water during jibes. Amazing!!

[Solent Foiler]

First time out on the 1099, with 325 and US and it's fast, faster than I was expecting,  turns way better than I was expecting, all with an easy take off, good control and that gliiiiiiiiide. It was fun, which given its size for a lightweight like me, isn't something I had taken for granted. It's still a wide wing so a bit slower to respond than the smaller ARTs, but nothing that you wouldn't get used to.

The ART range of foils continue to impress me, all clearly related, in terms of feel and performance, but all offering something a bit different meanings they all have a place. I'm using use the 325 US combo for all of them, with +1 shim (tail edge up), just moving the mast a bit to keep the balance.

[jondrums]

The ART range of foils continue to impress me, all clearly related, in terms of feel and performance, but all offering something a bit different meanings they all have a place. I'm using use the 325 US combo for all of them, with +1 shim (tail edge up), just moving the mast a bit to keep the balance.

totally agree on the ART range of foils!  I started with +1deg like you said, but lately I've been liking 0 to -0.5deg on the tail.  Glide is better and I just move the baseplate forward an inch or so to compensate. 

[Solent Foiler]

The ART range of foils continue to impress me, all clearly related, in terms of feel and performance, but all offering something a bit different meanings they all have a place. I'm using use the 325 US combo for all of them, with +1 shim (tail edge up), just moving the mast a bit to keep the balance.

totally agree on the ART range of foils!  I started with +1deg like you said, but lately I've been liking 0 to -0.5deg on the tail.  Glide is better and I just move the baseplate forward an inch or so to compensate.

Yes, on the 350 I didn't feel like I needed a shim, but on the 325 things got a little pitchy so the shim helps quieten that down, while keeping the loose rolling. Agree it glides a little less, but the control is worth it for me, and it's a pretty small, low drag stab in any case!

[jondrums]

Holy Crap, the 1099 is so good.  I've been on the KDFoils 12" tail for the last two weeks in small glassy gutless surf.  This wing surfs so so so well when there is no power in the wave.  Of course, I'd rather be on a smaller foil, but when the waves are small this is the setup.  The setup is just a little more twitchy and less forgiving on the pump - but still pumps perfectly fine.  The surfing is just so much better and the downsides are barely a downgrade.

I alternated tails between KDFoils 12, 13.5 and 15 as well as Axis 350P tail (very similar to 13.5" KD).

The 15" with 1099 is a dog even though its a really great tail
The 13.5" and 350P ride fantastic and really make the foil super fun
The 12" is a game-changer

[Califoilia]

The setup is just a little more twitchy and less forgiving on the pump - but still pumps perfectly fine.  The surfing is just so much better and the downsides are barely a downgrade.

When you get your new Power Carbon High Mod mast, that "twitchy and less forgiving on the pump" feeling will go away. The new masts are freakin' incredible!

I alternated tails between KDFoils 12, 13.5 and 15 as well as Axis 350P tail (very similar to 13.5" KD).

The 15" with 1099 is a dog even though its a really great tail
The 13.5" and 350P ride fantastic and really make the foil super fun
The 12" is a game-changer

I've not ridden the KD tails, but have found that going smaller on the tails with the ARTs (and now even my BSC wings) is where it's at. Have been on the 350 with them, and next outing going to throw on the 325P, and who knows, maybe the 300P at some point.

Also, if you ever down this way, let's get you demoing the new "Advanced" fuses...they too are "game-changers" as well as you say.