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Clamsmasha said..

Scotty Mac said..
Jeg, Do you have a picture?

It's in the first minute or so of this vid..

www.instagram.com/tv/B3v24J9HhLs/?igshid=nlxpjzd8zrq5

yup, I see the current GL tail wing is mounted on top with screws and this new tail with a wing tip is mounted under and it's like GF reverse the pedestal upside down and mounted the new wing tip and screws under. So progressive this foil sport and it's like if you blink you missed out. I hope the current pedestal is compatible with that wingtip and just turn the pedestal upsidedown to accommodate this new wing?
I'm going to the tip and tip toe around it

Good find Jeg.

One thing I've noticed with the pedestal tail is that it seems to breech in turns sooner than the older V tails. Pretty sure it's not the front wing breeching, totally different feel. Took some getting used to though now it's no problem. If this pic is correct having the tail wing on the underside of the pedestal would give back some of that mast length.

I assumed the new pedastal tail is designed for downwinding and to be more efficient, not for surfing particularly. No issues with breaching on a downwinder. I still use the old tail for surfing but assume the new tail pictured above is the new tail made for surfing.

that's interesting, GF testing out wing tip both top and bottom mounts with pedestal. So now we have a flat tail and soon to be release wing tip. Just hope the pedestal is compatible with both top and bottom mount and you can also flip the flat tail for top or bottom mount. I'm no aero geek but what is the deal with these wing tail of flat compared to wing tip?

en.wikipedia.org/wiki/Wingtip_device

In short, reduces drag created by wingtip vortices.
Almost all winglets on airplane wings point up, i.e. in the same direction as the convex side of the airfoil. Interestingly these point in the opposite direction, also pointing up but the convex side is on the bottom of the tail wing. At the speeds we're travelling I'm skeptical.

In general I like the flat tail wing better than the Maliko tail which tended to dance around through chop. The flat tail wing actually tracks better (I have the wide version, haven't tried the narrow). I'd certainly try the winglet version but would like to see those winglets pointing downwards.

The most interesting thing about that pic is where the mast is mounted to the board, this just looks right.

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Thatspec said..
en.wikipedia.org/wiki/Wingtip_device

In short, reduces drag created by wingtip vortices.
Almost all winglets on airplane wings point up, i.e. in the same direction as the convex side of the airfoil. Interestingly these point in the opposite direction, also pointing up but the convex side is on the bottom of the tail wing. At the speeds we're travelling I'm skeptical.

In general I like the flat tail wing better than the Maliko tail which tended to dance around through chop. The flat tail wing actually tracks better (I have the wide version, haven't tried the narrow). I'd certainly try the winglet version but would like to see those winglets pointing downwards.

The most interesting thing about that pic is where the mast is mounted to the board, this just looks right.

They probably just put them on for a bit of yaw control..the stab looks pretty short, so it might add a nicer locked feel for the surf.

looking at it closer, we might need to buy also another pedestal for the coming wing tip tail. I see almost every brand now has wingtip, either flat with wing-tip or bend with a wingtip.

whatt....more coming and I hope more tail options and maybe a new mast/fuselage, maybe tapered carbon mast etc, you blink you missed

I get it, it's not you, its me and I'm going to keep my kai for now but I need real evidence of this setup in action because its hard to tell from this vid. Stop it GL140 I don't need you to whip me around a roundhouse

www.instagram.com/p/B5QZYqJHUZl/?igshid=10nkwlpl6i2s6

Wing tips...a friend in the biz says they are added for safety rather than performance. Eg if you fall on a sharp tipped high aspect wing it might be like a samurai sword through your guts. He was referring to slingshot with this comment but may apply to gofoil too? Especially with their marketing of no sharp edges, no metal, rounded carbon for safest out there etc

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JEG said..
I get it, it's not you, its me and I'm going to keep my kai for now but I need real evidence of this setup in action because its hard to tell from this vid. Stop it GL140 I don't need you to whip me around a roundhouse

www.instagram.com/p/B5QZYqJHUZl/?igshid=10nkwlpl6i2s6

Anyone has the size area of the GL : It would interesting to compare GL140, 180, 210, 240 to Axis 900, 1000 and Unifoil/Signature 175, 190, 210, 250

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frenchfoiler said..

Anyone has the size area of the GL : It would interesting to compare GL140, 180, 210, 240 to Axis 900, 1000 and Unifoil/Signature 175, 190, 210, 250

From: docs.google.com/spreadsheets/d/17xbTGEWSVeRhnYb_4vz_Gmby8UnrDys7Q1iB-6rC6F4/edit?usp=sharing
The actual surface is used to calculate aspect ratio

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frenchfoiler said..

JEG said..
I get it, it's not you, its me and I'm going to keep my kai for now but I need real evidence of this setup in action because its hard to tell from this vid. Stop it GL140 I don't need you to whip me around a roundhouse

www.instagram.com/p/B5QZYqJHUZl/?igshid=10nkwlpl6i2s6

Anyone has the size area of the GL : It would interesting to compare GL140, 180, 210, 240 to Axis 900, 1000 and Unifoil/Signature 175, 190, 210, 250

all I know is (thanks to Piros measuring the gofoil GLs) that the signature/unifoil 210 is nigh on identical in terms of width and chord to the GoFoil GL180.... not the GL210 as the names might suggest.

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JEG said..
Beasho, what's your approx distance from tutle 1ts bolt to mid front footstrap?

they all look tasty and willl take both pohaku
I might oneday get the 140

21.5 Inches from FRONT Tuttle Bolt to Center of Front Strap.

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Thatspec said..
en.wikipedia.org/wiki/Wingtip_device

In short, reduces drag created by wingtip vortices.

Winglets are a complicated topic. I dusted off my Fundamentals of Flight textbook from Engineering school and found this (below).

Winglets save ~1% on efficiency but allow airplanes to have shorter wings so they DON'T bump into eachother at Airports.
Wikipedia hints at this: "e.g., available width at airport gates"

Not a very sexy reason. And NO reason we should have winglets on our hyrdofoils.

Those tips on the tail are acting like rudders stabilizing YAW. Not sure I want that.

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Beasho said..

NO reason we should have winglets on our hyrdofoils.

Not much of a tech guy...my eyes glaze over once the gang gets into the aeronautic tech tech. I could be a caveman luddite but at our speeds, not sure how much of that science applies....wingtips at 500mph vs 10mph may be significant.

But back to my post above....the reason I was told is safety. In a surf wipeout there is a reasonable chance of falling on the wing sideways (if board folds towards you). A sharp wingtip would be like a sword. A turned down tip is less likely to pierce. Could it be as simple as that?

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Camarillo said..

frenchfoiler said..

Anyone has the size area of the GL : It would interesting to compare GL140, 180, 210, 240 to Axis 900, 1000 and Unifoil/Signature 175, 190, 210, 250

From: docs.google.com/spreadsheets/d/17xbTGEWSVeRhnYb_4vz_Gmby8UnrDys7Q1iB-6rC6F4/edit?usp=sharing
The actual surface is used to calculate aspect ratio

Thanks, are you sure for the GL ?

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frenchfoiler said..

Thanks, are you sure for the GL ?

No but this is all there is , the Gofoil website has not been updated for some years..
And how can the projected surface of the GL210 be bigger then the actual surface?

I notice lots of these sites are updated slackers including Gofoil or the funding is not there and it doesn't take that much effort and I could do it in my sleep cmon dudes get your act together or give me a job there

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JEG said..
I notice lots of these sites are updated slackers including Gofoil or the funding is not there and it doesn't take that much effort and I could do it in my sleep cmon dudes get your act together or give me a job there

Hey guys.
There has been a change of ownership of GoFoil in Australia and we are working hard to get everything updated along with fulfill all the current orders. There will be a new GF Aus site shortly with all the updated pics & information you'll need.
cheers Dyl

At least in my eyes the whole GoFoil naming scheme is just confusing along with the lack of technical measurement. This is why I don't even consider this foil.

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Camarillo said..

frenchfoiler said..

Anyone has the size area of the GL : It would interesting to compare GL140, 180, 210, 240 to Axis 900, 1000 and Unifoil/Signature 175, 190, 210, 250

From: docs.google.com/spreadsheets/d/17xbTGEWSVeRhnYb_4vz_Gmby8UnrDys7Q1iB-6rC6F4/edit?usp=sharing
The actual surface is used to calculate aspect ratio

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Camarillo said..

frenchfoiler said..

Thanks, are you sure for the GL ?

No but this is all there is , the Gofoil website has not been updated for some years..
And how can the projected surface of the GL210 be bigger then the actual surface?

The chord measurement on the Albatross 210 can't be 40.2mm and is probably longer than 140.2mm if the aspect ratio is correct.
There a number of impossible measurements on that chart.

what's the weight on the latest 1.5 29.5 mast/fuselage because the gofoil Australian site said 40% lighter?
Also, gofoil Australian you need to add the new gl tail in the menu - foils - gl series
nice move Kite Republic and looking forward to some gofoil demo someday

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JEG said..
what's the weight on the latest 1.5 29.5 mast/fuselage because the gofoil Australian site said 40% lighter?
Also, gofoil Australian you need to add the new gl tail in the menu - foils - gl series
nice move Kite Republic and looking forward to some gofoil demo someday

Mast is the same weight it always has been so i feel that is a typo.

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paul.j said..

JEG said..
what's the weight on the latest 1.5 29.5 mast/fuselage because the gofoil Australian site said 40% lighter?
Also, gofoil Australian you need to add the new gl tail in the menu - foils - gl series
nice move Kite Republic and looking forward to some gofoil demo someday

Mast is the same weight it always has been so i feel that is a typo.

thanks paul.j

I own a KAI GL100 and GL140 and would love to know the surface are of all the GL range. GOFOIL should be happy to release this information as it helps when coming from other brands and trying to choose. The website updates still exclude dimensions including the areas.

Am loving the GL140 for prone.

A GL120 would be awesome.

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AnyBoard said..
I own a KAI GL100 and GL140 and would love to know the surface are of all the GL range. GOFOIL should be happy to release this information as it helps when coming from other brands and trying to choose. The website updates still exclude dimensions including the areas.

Am loving the GL140 for prone.

A GL120 would be awesome.

A GL 340 would also be nice.

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JEG said..
what's the weight on the latest 1.5 29.5 mast/fuselage because the gofoil Australian site said 40% lighter?
Also, gofoil Australian you need to add the new gl tail in the menu - foils - gl series
nice move Kite Republic and looking forward to some gofoil demo someday

Nothing like Answering a question with numbers and pictures: Tall Mast Fuselage = 5 lbs, 2 oz. --> 2.3 KG

Total Rig 8 lbs 11 oz --> 3.9 KG. Other parts shown (Kai ~ same as GL Tail).