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Forums > Stand Up Paddle Foiling

SUP and surf foil videos

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Created by colas > 9 months ago, 5 May 2017
DavidJohn
VIC, 17493 posts
13 Aug 2018 10:54PM
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Nice one Rob..

colas
5128 posts
14 Aug 2018 3:55PM
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Jousting...

As you can guess the Horue team is based in the mediterranean sea... no waves in summer... and as we say in French "Idleness is the mother of all sins" :-)

15 Aug 2018 10:33AM
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Select to expand quote
Beasho said..
50 Consecutive Waves caught. Pretty much means things can go infinite:



I just came in from foiling out here on Maui & watched him go non-stop for over 10 minutes....Amazing

Windgenuity
NSW, 652 posts
Site Sponsor
15 Aug 2018 12:15PM
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Select to expand quote
Beasho said..
50 Consecutive Waves caught. Pretty much means things can go infinite:



That's some pretty epic fitness. I'm puffing pretty hard after 6, and usually cap it at about 3 plus the pump back out. This given, he does look a little lighter than me . Technique is everything with pumping.

Piros, I've noticed quite a few of the Hawaiian's adopt this further aft stance and aft foil mounting. I have put a lot of it down to the power in the swells. At that size on a regular day east coast Aus would be likely 5 -7 sec. where as Hawaii would be 12 - 13 sec. This is a big deal. I have ridden 19 sec at < 1m and it's amazing on the foil. Then ridden 2+m at 7 sec and you're having to work.

It's all about energy.

JB

blueplanetsurf
313 posts
19 Aug 2018 1:35AM
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The difference between angle of incidence and angle of attack:

JB
NSW, 2232 posts
Site Sponsor
19 Aug 2018 6:24AM
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Select to expand quote
blueplanetsurf said..
The difference between angle of incidence and angle of attack:


This is some good information to foils. I often have people asking and talking about wedging their Naish Hover to get the Fuleage parallel to the deck. Somehow, someone has tried to make this a universal trimming guide. Which IMO is incorrect for the following reasons;
1. All foils are different, so how could they possibly all have the same angles of Incidence & Attack.
2. Naish purposely build their Hover boards to suit the Thrust Foils. They have done the work to ensure it is as technically correct as possible.

I have played with wedges on my Naish Hover's quite a bit as I like to try and understand things not only theoretically, but also practically. Against my understanding of the theory, I tried a 4mm wedge on my Naish Setup and hated it. Then stepped down in 1mm increments until I got the my 1mm Wedge. The 1mm Wedge was rideable to a degree, but it's impact of high speed riding and power was amazing. Just 1mm made my gear so hard to control at speed, that I have not ridden with any wedge since nor will I.

Playing with the angles will work in different ways, but like everything, if you increase low speed lift (angle of attack), you are going to sacrifice control (especially at speed). My opinion is you get far better trim and control over your board by moving the mount fore and aft in the tracks depending on conditions and rider weight.

Wedges are an inexpensive way of trialling things, and possibly something you may use on a crappy day (1mm), but I honestly think after some time you'll choose to use the factory angles.

Obviously, on a modified board, wedges may help to achieve the intended foil angles. I suggest working out what these angles are of a production product first, then aim to try and match them for the appropriate sized board.

Ride safe,

JB

Piros
QLD, 7045 posts
19 Aug 2018 5:30PM
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Hover Board surf foiling , in my backyard Surfers Paradise beach on a classic winters day.

19 Aug 2018 6:48PM
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Select to expand quote
blueplanetsurf said..
The difference between angle of incidence and angle of attack:


I'm glad I'm just a dumb arsed surfer & don't have to give myself a headache thinking about these things...Luckily jimmy Lewis' collaboration with GoFoil makes foiling that mush easier & you just have to adjust yourself to the conditions...Great technical breakdown though...

blueplanetsurf
313 posts
20 Aug 2018 5:29AM
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Select to expand quote
JB said..




blueplanetsurf said..
The difference between angle of incidence and angle of attack:






This is some good information to foils. I often have people asking and talking about wedging their Naish Hover to get the Fuleage parallel to the deck. Somehow, someone has tried to make this a universal trimming guide. Which IMO is incorrect for the following reasons;
1. All foils are different, so how could they possibly all have the same angles of Incidence & Attack.
2. Naish purposely build their Hover boards to suit the Thrust Foils. They have done the work to ensure it is as technically correct as possible.

I have played with wedges on my Naish Hover's quite a bit as I like to try and understand things not only theoretically, but also practically. Against my understanding of the theory, I tried a 4mm wedge on my Naish Setup and hated it. Then stepped down in 1mm increments until I got the my 1mm Wedge. The 1mm Wedge was rideable to a degree, but it's impact of high speed riding and power was amazing. Just 1mm made my gear so hard to control at speed, that I have not ridden with any wedge since nor will I.

Playing with the angles will work in different ways, but like everything, if you increase low speed lift (angle of attack), you are going to sacrifice control (especially at speed). My opinion is you get far better trim and control over your board by moving the mount fore and aft in the tracks depending on conditions and rider weight.

Wedges are an inexpensive way of trialling things, and possibly something you may use on a crappy day (1mm), but I honestly think after some time you'll choose to use the factory angles.

Obviously, on a modified board, wedges may help to achieve the intended foil angles. I suggest working out what these angles are of a production product first, then aim to try and match them for the appropriate sized board.

Ride safe,

JB





Thanks for the feedback JB, I have had the same experience.
I have tested various mast setup angles and found that on our Blue Planet boards and foils the pre-set angle without any shims works best. If the mast is angled forward to make the fuselage parallel to the deck (and increasing the angle of incidence of the front wing), it can make taking off a bit easier as the foil creates more lift at lower speeds. The downside is that it makes the foil much harder to control at higher speeds as you have to trim your board with the nose pointing downward to reduce the angle of attack and keep the foil from breaching at higher speeds. It also creates more drag when paddling back out, so I don't recommend it. I would only consider using shims on a retrofitted board with too much rocker not designed for foiling, where the mast is visibly angled too far backwards due to the rocker.

7-Nation Aust
QLD, 114 posts
20 Aug 2018 2:40PM
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Casso
NSW, 3768 posts
22 Aug 2018 3:34PM
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Casso
NSW, 3768 posts
27 Aug 2018 8:52AM
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Piros
QLD, 7045 posts
28 Aug 2018 7:29AM
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Nice Casso & flying on that Axis is that the 820 wing

Supmaori
746 posts
28 Aug 2018 6:01AM
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making it look easy Casso..awesome

likuid
QLD, 330 posts
28 Aug 2018 9:17AM
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Casso
NSW, 3768 posts
28 Aug 2018 3:05PM
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Select to expand quote
Piros said..
Nice Casso & flying on that Axis is that the 820 wing


Yep - the 820 with 750 mast.

Casso
NSW, 3768 posts
28 Aug 2018 10:30PM
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JosephBetts
155 posts
1 Sep 2018 5:33PM
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Select to expand quote
Casso said..


**** mate you look like your having so much fun on that thing. No crowd either. Those foil things must be amazing...

JB
NSW, 2232 posts
Site Sponsor
4 Sep 2018 6:12AM
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Ok, here's a real world "journey so far" video. Nothing taken out, no out takes, all in honest wall start attempts video (every try).

This is so much harder than it looks on TV. I didn't get it, but Mark did (just). But videoing it has helped a lot, after much time watching the reels in slow motion, I think I am ready for our next attempt.

Enjoy, and please do not be too harsh -



Ride safe,

JB

Macaha
QLD, 21944 posts
4 Sep 2018 1:33PM
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Casso
NSW, 3768 posts
5 Sep 2018 8:39AM
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Nailed it...


colas
5128 posts
5 Sep 2018 10:16PM
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The video:

SUPbru
386 posts
6 Sep 2018 2:53AM
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Quality post Casso....that made me laugh....a good reminder not to attempt any foot drags anytime soon

Gorgo
VIC, 5030 posts
6 Sep 2018 4:59PM
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We're all doing it wrong.

www.facebook.com/kai.lenny/videos/10156725449134312/

Casso
NSW, 3768 posts
6 Sep 2018 6:29PM
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Casso
NSW, 3768 posts
9 Sep 2018 10:27PM
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Some more Sydney action...

colas
5128 posts
10 Sep 2018 12:21PM
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Select to expand quote
Casso said..
Some more Sydney action...





Thanks to the slow motion, we can see a strange detail: the tips of your wings (~ 4" from tip) seem in constant cavitation or ventilation, covered with air (it looks like your wing tips are painted white):



They are visible in all the sections of the video, the ventilated section seems fairly constant. It seems your tips are turned down on the last 4". Could it be that something in the way they bend is creating this ventilation? It cannot be beneficial: at best the last 4" tips are just useless, at worst they create instability with turbulence flow... I think you should show the vid to Axis to get their feedback.


I do not think it is a true cavitation, that only can happen at high speed and then destroys the wings surface when the vacuum bubbles collapse. It must be ventilation, but then the air must come from somewhere. Can you look at your video rushes and see is this air is sucked in from the surface and get locked in the tips at some point?

TrevT
QLD, 136 posts
10 Sep 2018 3:48PM
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I tried out something a little different. I wanted to foil the Dead Sea in Israel as I figured the salty water (about 8x saltier than normal ocean) would help me out with lifting the foil! It turned out to be so much harder haha. Check this out anyway was still good fun but saltier water doesn't help at all it just grips to your foil and drags feels like you're towing a leggy as you go

Casso
NSW, 3768 posts
10 Sep 2018 5:48PM
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Select to expand quote
colas said..
Thanks to the slow motion, we can see a strange detail: the tips of your wings (~ 4" from tip) seem in constant cavitation or ventilation, covered with air (it looks like your wing tips are painted white

Ahhh, no Colas - they are just painted white. No cavatation on the Axis tips.




colas
5128 posts
10 Sep 2018 8:35PM
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Select to expand quote
Casso said..
Ahhh, no Colas - they are just painted white. No cavatation on the Axis tips.


Oops sorry, my bad. I should have checked more!



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Forums > Stand Up Paddle Foiling


"SUP and surf foil videos" started by colas