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

Good find Jeg.

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.

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.

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.

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

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

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.

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.

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 ?

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

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.

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

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

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.