Northerly 18-25 knots, foilpark bumps - no reefs/islands to the north stopping the swells

Simmer Blacktip Legacy 4m
Simmer 920cm2 Blackbird Race wing

Slingshot Wizard 114 - approx. 500 sessions, no soft spots or loose boxes

GoPro10 Max Lens Mod - 2k res

Nice session Azymuth. Love seeing those ramps stand up just begging to be foiled.

awesome wind-foiling , great job

Awesome!

Looks like an awesome session and another great vid.

I like the way higher aspect "surf" wings behave in swells. And I am seeing the pro level wingfoilers rip up the waves on tiny race foils (500 to 600 cm2). I am thinking the race and surf foils are more similar than I realized. I am thinking neither want unmanageable lift when going fast and higher speed into a carve should equal more G's (Fun!). Does this make sense?

However I do prefer the way a bigger (1300 cm2) MA foil feels the smaller swells more than my smaller higher aspect foil. And I do prefer the custom 800 fuselage over a race length foil, as it shortened the craving radius. But that's just me

Oh Azymuth, those tip out recoveries highlight the mad skills you have

Like how you stuffed that 103 wide into an axis fuse did you modify the fuse or the mast?

Pretty serious mod on the front wing as well

Fantastic video and riding and some serious foil engineering going on.

I don't know anyone else that mods gear like you do JJ

Awesome work as usual Azymuth !!

All those mods and you're still using the stock phantasm rear stab. I'm surprised.

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azymuth said..
Northerly 18-25 knots, foilpark bumps - no reefs/islands to the north stopping the swells

Simmer Blacktip Legacy 4m
Simmer 920cm2 Blackbird Race wing

Slingshot Wizard 114 - approx. 500 sessions, no soft spots or loose boxes

GoPro10 Max Lens Mod - 2k res

Whooooa 500 sessions..I wish I could have so many under my belt, wonn't be enough an entire life for catching you...so jealous of that...great session!

Cheers all

I like messing around with foils - looking for speed and control in swells.

Went with Axis fuse because I had an ART 699 and they're about to release a fast 800cm2 wing for race winging.
Although I've since bought a fast Simmer foil set.

Cut down the foot of the Phantasm mast to fit the Axis fuse - changed from 3 x M6 to 2 x M8 barrel nuts.

Faired in my allrounder Simmer 920cm2 front wing to work with the fuse - Axis fuse is meant to bury into the front wing.
Drilled out Axis fuse M6 front screws to M8.

Built up the bottom of the Phantasm rear wing (deriving negative shim) to fit on top of Axis fuse (mounts bottom on Phantasm fuse).

Rear wings.
Tried Axis Progressive 375, 400 and a tiny custom, also cut the tips off a spare Phantasm rear wing - but prefer the standard Phantasm 400 rear in big lumps.
I like max control in yaw/roll to push over 20 knots speed down swells.
Works for me - Simon rips on a much more compact board geometry (mast base/footstraps) and looser foil setup.

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azymuth said..
Cheers all

I like messing around with foils - looking for speed and control in swells.

Went with Axis fuse because I had an ART 699 and they're about to release a fast 800cm2 wing for race winging.
Although I've since bought a fast Simmer foil set.

Cut down the foot of the Phantasm mast to fit the Axis fuse - changed from 3 x M6 to 2 x M8 barrel nuts.

Faired in my allrounder Simmer 920cm2 front wing to work with the fuse - Axis fuse is meant to bury into the front wing.
Drilled out Axis fuse M6 front screws to M8.

Built up the bottom of the Phantasm rear wing (deriving negative shim) to fit on top of Axis fuse (mounts bottom on Phantasm fuse).

Rear wings.
Tried Axis Progressive 375, 400 and a tiny custom, also cut the tips off a spare Phantasm rear wing - but prefer the standard Phantasm 400 rear in big lumps.
I like max control in yaw/roll to push over 20 knots speed down swells.
Works for me - Simon rips on a much more compact board geometry (mast base/footstraps) and looser foil setup.

I see these days most of you very experienced windfoilers from WA are switching to higher aspect foils and less surface vs the infinity 76 front wing I also started on.
I did the same, but your number of sessions suggests your experience is much higher than mine. What moved you towards this route? I see you are using a race foil front wing now...quite on the other side of the spectrum vs low aspect higher surface foils, while Simon I see is using the SAB 799 which is a mid aspect foil, with probably a lower stall speed @ 1100 cm2 surface. I remember one of the concern the community of swell riders had was that fast foils would lead to surpass the wave you are moving on, how do you relate to this aspect with the foils you are using now?

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dimacced said..
I see you are using a race foil front wing now...quite on the other side of the spectrum vs low aspect higher surface foils, while Simon I see is using the SAB 799 which is a mid aspect foil, with probably a lower stall speed @ 1100 cm2 surface. I remember one of the concern the community of swell riders had was that fast foils would lead to surpass the wave you are moving on, how do you relate to this aspect with the foils you are using now?

The Simmer 920 foil I use is a "freerace" foil - I think quite different (and slower) than proper race foils.
For me it tops out at about 22 knots in the ocean - I'd be happy going a bit faster, maybe up to 25 knots at times.

I don't outrun windswells S-turning down them.
And speed is good riding waves across the face upwind and DTL.

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azymuth said..
Northerly 18-25 knots, foilpark bumps - no reefs/islands to the north stopping the swells

Simmer Blacktip Legacy 4m
Simmer 920cm2 Blackbird Race wing

Slingshot Wizard 114 - approx. 500 sessions, no soft spots or loose boxes

GoPro10 Max Lens Mod - 2k res

I love your experimentation. Foil manufacturers could learn a lot from your mixing and matching of different components.

Have you ever tried the Slingshot PTM 930.?If so, how does it compare with the Simmer 920 blackbird

No, I've tried the 1001 and 730 but not the 930 in the PTM high aspect range.

Looking at it I would guess it to be similar to the Simmer 920 - maybe a tad faster but a little less stable.

I was not very excited with the PTM930, it was fine going upwind and gliding off the wind but would roll across the wind and made me nervous. it also has little to no stall speed, so if you're slowing down intentionally the wing would suddenly drop.

The G800 behaves much better in all aspects, you can load the foil up especially for backside turns and also glides very well off the wind.

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CoreAS said..
I was not very excited with the PTM930, it was fine going upwind and gliding off the wind but would roll across the wind and made me nervous. it also has little to no stall speed, so if you're slowing down intentionally the wing would suddenly drop.

The G800 behaves much better in all aspects, you can load the foil up especially for backside turns and also glides very well off the wind.

It looks like the 930 is closer to 950cm2 and the g800 more like 1150?

Have you compared the g700, which is 900cm2?

Edit: Really curious because it seems like in terms of area, there's not a big jump from PTM 926 to the G800 (90cm2), but there's a huge jump in PTM 926 to PTM 930 (313cm2).
Of course, the wing design itself is a big factor and I really don't understand it.


G700 900 cm2
G800 1173 cm2
G900 1263 cm2
G1000 1355 cm2

PTM 701 700 cm2
PTM 825 758 cm2
PTM 930 950 cm2
PTM 1001 1119 cm2
PTM 926 1263 cm2

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aeroegnr said..

CoreAS said..
I was not very excited with the PTM930, it was fine going upwind and gliding off the wind but would roll across the wind and made me nervous. it also has little to no stall speed, so if you're slowing down intentionally the wing would suddenly drop.

The G800 behaves much better in all aspects, you can load the foil up especially for backside turns and also glides very well off the wind.

It looks like the 930 is closer to 950cm2 and the g800 more like 1150?

Have you compared the g700, which is 900cm2?

Edit: Really curious because it seems like in terms of area, there's not a big jump from PTM 926 to the G800 (90cm2), but there's a huge jump in PTM 926 to PTM 930 (313cm2).
Of course, the wing design itself is a big factor and I really don't understand it.


G700 900 cm2
G800 1173 cm2
G900 1263 cm2
G1000 1355 cm2

PTM 701 700 cm2
PTM 825 758 cm2
PTM 930 950 cm2
PTM 1001 1119 cm2
PTM 926 1263 cm2

It's a combination of everything, wing width, aspect ratio and surface area.

In your PTM list above, the PTM926 does not really belong in that family, it's a first-generation foil and slingshot marketed it as High Aspect over 2 years ago but its actually a Medium Aspect (around 6.1).

The MA family really looks like G700, G800, G900, PTM926 & G1000

Yes, I have the G700 MA and its more of a specialist high wind foil or for very light weight riders. I found it needed allot of wind to take off and similar to the PTM930 HA with little stall speed.

For most folk the G700 MA will need 25+ knots to get the most out of it. At 700mm wide you have to be on your toes with a wide board or use a narrow board. The wizard 114, 90 and Freestyle boards would better suit the G700.

I have been foiling the PTM926 MA - 1263 surface area for over 2 years and is my daily driver in winds 8-17 knots then I would change down to the PFI730 LA.

Even though the G800 MA is around 1173 surface area it behaves extremely well in winds up to 25+ knots, on paper the surface area looks a bit less, but the wing width is much less than PTM926 MA and so turns corners much quicker, it glides beautifully and loads up without foiling out. The G800 MA is becoming the new fan favorite I think and is very similar to SAB 799 which SAB guys love also.

A great 2 foil quiver for most people would be the PTM926 MA or G900 MA for light winds, with the G800 MA and that will cover 8-25+ knots easily.

The PTM range for wind foil is a bit "marmite" it seems, there are riders that love them and others not so much and I'm sure its down to the high aspect ratio that creates a very exciting feel for those that prefer that way of foiling.

Wow, thank you for the thorough response CoreAS! I do like the ptm 926 and maybe one of these days I'll try one of the G or other wings. The 926 to me felt a lot more like what I wanted than the infinity 76. That may be because I also foil on a more slippery 900 race wing (but with a very long fuse) the rest of the time. You've provided lots of food for thought here.

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aeroegnr said..
Wow, thank you for the thorough response CoreAS! I do like the ptm 926 and maybe one of these days I'll try one of the G or other wings. The 926 to me felt a lot more like what I wanted than the infinity 76. That may be because I also foil on a more slippery 900 race wing (but with a very long fuse) the rest of the time. You've provided lots of food for thought here.

You're welcome, I had made this video about the G800 but my swell riding is lame compared to JJ and Simon's...those guys rip and have dialed in wind foiling more than anyone

My Wizard is around 3+ years old and never had a soft spot of track issues either.

I had a great session swell chasing on Port Phillip Bay yesterday.. I am also using a racy foil, a prototype Zulu ( I am the designer) with a 900 course racing front wing. I am guessing it would be pretty similar to the Simmer 920. I find the speed really handy for getting on a swell, just sheet in and accelerate then let the sail go neutral once on the swell ( wave sail required, I have used cammed sails and you cant dump the power) This slalom/ race foil carves really hard even with the 102cm fuse...super enjoying it. We will be doing a more freemove version as well with a shorter fuse and different wings... Contrary to what I thought the faster foils work well for swell chasing to a point. I have also used the 800 front wing which is a lower lift speed biased slalom wing and found that a bit too fast plus the stall speed is a bit high, yet the 900 is really nice.


It has changed a bit since this photo...fuselage nose is different and its also now black hardcoat anodised.

Azymuth, I am interested in your messing around with stabs. As you can see in the photo my stab is almost flat, just a subtle turn down in the tip and also high aspect. I have found that when carving really hard I have had it slip out a few times sort of like a spin out on a windsurf board. I am thinking a lower aspect stab with larger turndowns may give it some grip without stiffening it too much?? Thoughts? We are doing this for the slalom foil to control yaw at high speeds but it does make the foil more straight line and kills the looseness too much. I coud also try a much smaller vertical?

Mr Love - I tried a small vertical wing at the back of the fuse with my ART 699 - worked really well to control yaw.

Spin out and wash out are issues with smaller flat stabs.

Small anhedral tips on the stab add control - for me a foil set smaller than 900 front and 350/400 rear can't be too stiff on a 900 fuse.
Just means I can lean all my weight into carving swells at speed.

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azymuth said..
Mr Love - I tried a small vertical wing at the back of the fuse with my ART 699 - worked really well to control yaw.

Spin out and wash out are issues with smaller flat stabs.

Small anhedral tips on the stab add control - for me a foil set smaller than 900 front and 350/400 rear can't be too stiff on a 900 fuse.
Just means I can lean all my weight into carving swells at speed.

Cool thanks...Yep the stab I have been using with the 900 is 198sqcm. I need to get my head out of Slalom mode and develop some surf stabs.

You probably know - the Phantasm 400 stab is 280cm2
I reckon a little smaller, say 240cm2 would be sweet (with tips)