Author Topic: Axis Foils  (Read 217000 times)

rfhestdalen

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Re: Initial purchase of Axis Foils
« Reply #930 on: April 05, 2021, 03:01:03 PM »
After reading all 62 pages of this forum, I am very appreciative to all the contributors as I have gained a great amount of knowledge about the Axis system and foiling in general. I would like some advice, given my situation purchasing the right foil gear.
I have kitesurfing and SUP experience in the past as well as I have wake foiled on Slingshot gear behind my boat last year. Im fairly comfortable behind the 2nd wake on a 84 SS and did make a wake transfer by the end of the summer.

Im looking to start Wingfoiling and Kitefoiling with the Axis System. Im 66, 210-215 pounds. Would be playing primarily on a lake in northern ID and a few days of the year in the Gorge and Maui. Wind conditions on the lake is mainly a SW wind 7-12mi/hr. Occasionally, we can get a NE at 18-30. I have purchased a 6.4 Slingwing V2, Gin Spirit 15m kitefoil, and a 62 142L Blue Planet Carver Foil Sup thus far.

So what to buy initially (and I realize people seem to progress through their early equipment as their skill level improves). I would like to get 1 foil for light-wind WF and a second foil for high-wind WF and light-wind kitefoiling (i dont see myself kitefoiling when its cranking). To me, it seems rather obvious to start WF with the new 1120 BSC, 75 Al mast, short fuse with a 440 vs 430 stab. Thoughts? Would it be just as easy to start out it light conditions with the 1060 given my weight and lake conditions and perhaps use the foil longer?

I would like to use a 2nd foil primarily for high-wind Wingfoil and light-wind kitefoil. Is that reasonable? I was thinking maybe a 970 BSC vs 1050 HPS vs 980 HPS etc with the 390 rear foil. Any thoughts?

What would be your 2 foil recommendations for me? Or do I need a 3rd to kitefoil?

Given my age of 52 and my weight, etc, i dont have any delusions of having to get a 1150mm to pump around the lake like Mr Wakethief.  But PB real likes his 1150, so maybe that foil is in the mix as well.

Interested in your advice, thanks!

paddlur

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Re: Axis Foils
« Reply #931 on: April 05, 2021, 06:28:35 PM »
At your weight agree with you the 1060 is a good choice,my fav wing at 225lb.I have my eye on the 1120 for light days but its not out yet,but I will definitely be getting it when available.I had the 1150 and sold it,was good for flat water spots or small swells ocean days,but for decent ocean swell winging was not biggest fan of the 1150 much prefer the 1060 from 6m wind to 3.5m blasts
Naish kites-mhl lift foils-GoFoil-ASD surfboards fortaleza brasil,Kalama supfoil.AXIS foils

Alysum

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Re: Axis Foils
« Reply #932 on: April 07, 2021, 06:08:09 AM »
So today I discovered than my 90cm mast is in fact 92cm when you measure from the top plate to the fuselage.  ???

Could someone measure the carbon mast with fuselage, do we need to add 2 cm as well?

Hdip

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Re: Axis Foils
« Reply #933 on: April 07, 2021, 07:54:38 AM »
I put the AXIS 75cm aluminum mast with doodad and plate mount, next to the AXIS 76cm carbon mast. The carbon mast was ever so slightly shorter. I was confused.

A 75cm carbon unifoil mast was ever so slightly taller than both AXIS masts. My 75cm project cedrus mast with plate mount and a lift adapter is taller yet. That one measures 80.5cm by my tape measure.

Dwight (DW)

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Re: Axis Foils
« Reply #934 on: April 07, 2021, 08:45:18 AM »
Masts are all measured different and so are fuselages. No industry standard for anything.

Just accept it and move on  ;D ;D

Alysum

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Re: Axis Foils
« Reply #935 on: April 07, 2021, 02:16:07 PM »
Masts are all measured different and so are fuselages. No industry standard for anything.

Just accept it and move on  ;D ;D
you have the carbon 96 mast could you measure with the black fuse.

Considering how expensive the carbon mast are it's important to get the right size.

daswusup

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Re: Axis Foils
« Reply #936 on: April 11, 2021, 07:15:43 AM »
Just had first go on the 380 stab with my 980 v1. Holy Chit! Skatepark handling with unlimited speed on tap. First thing I did was file down the scary ass knives. As far as I can see the 380 is the exact same stab as the 460 just chopped and wing tipped. I ordered a new Ride Engine Defender HF vest to pair with it. Coming back to earth from jumps, the smaller stab re-enters the water and resumes foiling easier than larger stabs. Send it!!!!

AGK

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Re: Axis Foils
« Reply #937 on: April 12, 2021, 07:10:33 AM »
Adding on to Paddlurs discussion of the BSC 1060 earlier in this thread, heres my experience using the 1060 after many winging sessions on the 1150    [175 lbs., competent but low-talent foiler, many years experience windsurfing/kiting/kitefoiling, 420 rear, using a 90 liter SUP Surf Machines board and Boardriding Maui W1 wings].  Ive used the 1060 in light but foilable 5 meter conditions, solid 4 meter(~22 mph), and pretty solid 3 meter (averaging mid-high 20 mph  with gusts to low 30s)  all in sounds and not breaking waves.

Ease of getting on foil about even 1150 maybe has slightly more lift, but the 1060 develops a bit more forward speed on the water.  Both get up really easily.

Smoothness/control in powered conditions and windswell -  1060 by a lot.  It is less prone to sudden changes in foil angle in response to gusts and water turbulence, and feels great on all points of sail.

Turning/jibing 1060 is (for me) so much better than the 1150 that I put the 1150 up for sale after one session.  The 1060 turns so much more quickly, smoothly, and controllably for me than the 1150 its not even close. Seems more stable switching feet.  My jibe completion rate has jumped significantly.

Pumping the 1150 does pump through lulls better I could definitely stay on foil longer through lulls and wind holes than with the 1060.  1060 is still pretty good, but the 1150 was really awesome at this.

Overall I totally love this wing. It makes everything easier and more fun. I will probably sell my smaller Cloud 9 foils and get a BSC 890. 

cnski

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Re: Axis Foils
« Reply #938 on: April 12, 2021, 07:53:47 AM »
AGK- What about straight line speed of the 1060 vs 1150? Thx

AGK

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Re: Axis Foils
« Reply #939 on: April 12, 2021, 08:11:37 AM »
AGK- What about straight line speed of the 1060 vs 1150? Thx

I think for me the 1060 is faster because I can push it harder and stay in control, especially off the wind  -- but compared with most foilers I am pretty slow all the time, so I would not put a lot of confidence in my assessment.

Alysum

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Re: Axis Foils
« Reply #940 on: April 13, 2021, 01:51:35 AM »
Question for those that like to go fast on the HA wings...

Have you ever experienced an issue where the foil suddenly gets a mind of it's own and goes sideways when you're going fast on a beam reach ?

It happened to me on Sunday and since raising the issue I've had other people reporting the same issue. It's caused by ventilation, see:
https://www.youtube.com/watch?v=2tIQlDJ-XPY  (Hadou is a well known bloger on all things wing/axis).

It seems to happen less with the thinner carbon mast, but people haven't experienced this issue with other brands of foils  :-\

Dwight (DW)

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Re: Axis Foils
« Reply #941 on: April 13, 2021, 02:29:44 AM »
Never happened to me or Jacky. We have carbon masts.

Did I hear noise coming from his foil? Ours are silent.
« Last Edit: April 13, 2021, 02:32:31 AM by Dwight (DW) »

PonoBill

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Re: Axis Foils
« Reply #942 on: April 13, 2021, 09:55:08 AM »
Yup. I experienced it several times last summer in Hood River. Typically on my 860 but also on the 1010. I use both carbon and aluminum masts and I don't remember which I was using. Definitely a high wind, hauling ass thing. I like to swerve around a lot on the 860, it feels so loose, especially with the 340 tail, but the stutter is not just from swerving and dancing around. It's happened several times when I'm just planted, going straight. Oddly, it doesn't make me fall, or at least I don't think it does. It's just a sudden, sideways slip and drop of a few inches. One of those feelings that pops your eyes wide. Like "what the fuck was that!"

I've stopped several times and flipped my board over to see if there was something wrong. Nope.
« Last Edit: April 13, 2021, 10:05:52 AM by PonoBill »
Foote 10'4X34", SIC 17.5 V1 hollow and an EPS one in Hood River. Foote 9'0" x 31", L41 8'8", 18' Speedboard, etc. etc.

clay

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Re: Axis Foils
« Reply #943 on: April 13, 2021, 10:21:42 AM »
This video shows the difference between wing tip breach, and mast ventilation - can see the air travel down the mast to the tail (around 4 minute):

https://youtu.be/xarbCj87N6U
Aloha, I welcome and appreciate all responses of positivity and good feeling.

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PonoBill

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Re: Axis Foils
« Reply #944 on: April 13, 2021, 10:51:28 AM »
That's pretty much what I thought it was. The phenomenon people mistakenly call cavitation. Cavitation is actually boiling and requires a lot more energy than a human can generate. Throttle down the suction of a multi-horsepower centrifugal pump just a bit too much and you'll hear a rattle--the sound of a low enough pressure being generated on the back side of the pump impeller to allow the water to boil at low temperature.

Ventilation is just air being drawn down from the surface by a much lower pressure differential than would be required for cavitation. It's why paddles slip and windsurf fins sideslip after a jump or when they're pressed hard. It's no surprise that a foil can do that. It's a little odd that the tapered carbon mast might exacerbate the issue--I'd expect the taper to detach the bubble and lessen the problem, but reality often has little to do with what I'd expect.

It's rare enough to generally not be an issue, but if it became more common with specific wing designs then the usual fence solutions would probably fix it. I'd expect HA wings would be a lot more susceptible to wing tip ventilation than mast ventilation--the low pressure area of a wing is proportional to lift and is distributed along the length of the wing. For the same amount of lift (enough to get you up in the air) a HA wing would have smaller differential pressure per unit of length. 
« Last Edit: April 13, 2021, 11:01:42 AM by PonoBill »
Foote 10'4X34", SIC 17.5 V1 hollow and an EPS one in Hood River. Foote 9'0" x 31", L41 8'8", 18' Speedboard, etc. etc.

 


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