For all foil kite riders
-
Adventure Logs
- Very Frequent Poster
- Posts: 1558
- Joined: Sun Oct 20, 2013 7:18 pm
- Local Beach: South Padre Island, Texas
Punta del Diablo, Urugay
- Gear: Flysurfer, Moses, Groove, Gin
- Brand Affiliation: None
-
Has thanked:
85 times
-
Been thanked:
322 times
-
Contact:
Postby Adventure Logs » Sun Jan 03, 2021 1:32 am
Peter_Frank wrote: ↑Sat Jan 02, 2021 11:14 pm
but some would claim it being drag when not closed cells.
Peter
It’s not a claim it’s a fact. Turbulent air is drag. It’s called aerodynamics.
-
14ToeSide
- Very Frequent Poster
- Posts: 1023
- Joined: Sun Nov 27, 2011 12:16 am
- Favorite Beaches: Sandy Spit
- Gear: North, Ozone, Naish, Flysurfer
- Brand Affiliation: What ever works Best that year
-
Has thanked:
5 times
-
Been thanked:
20 times
Postby 14ToeSide » Sun Jan 03, 2021 5:29 am
-
PugetSoundKiter
- Frequent Poster
- Posts: 364
- Joined: Sat Feb 20, 2016 5:53 pm
- Style: Wake TT, Strapless Surfboard, Landboard
- Gear: Cabrinha, Ocean Rodeo, Slingshot, Naish, North, Pansh, Ozone, HQ, Peter Lynn
- Brand Affiliation: None
-
Has thanked:
116 times
-
Been thanked:
88 times
Postby PugetSoundKiter » Sun Jan 03, 2021 7:53 am
Peter_Frank wrote: ↑Sat Jan 02, 2021 8:44 pm
Trapped air in double skin foils? Some argue it is an advantage, others dont...
I'd argue it's an advantage. Take any of your double skin foil kites out and try to fly them uninflated with the intakes taped closed
-
tomtom
- Very Frequent Poster
- Posts: 1693
- Joined: Sun Nov 03, 2002 1:00 am
-
Has thanked:
23 times
-
Been thanked:
218 times
Postby tomtom » Sun Jan 03, 2021 10:15 am
To answer original question. Any added mass is bad overal. It can be advantage on very special one stroke events. Like jumps or straight to foil powerstroke. Here you can utilize energy stored in momentum. Only on reasonable longer lines though.
I much prefer inertia less kites. Having all type of kites double skin foil kites have most inertia from all kite types.
I
-
Herman
- Very Frequent Poster
- Posts: 2095
- Joined: Tue Jun 04, 2019 7:09 pm
- Style: My Own.
- Gear: SLE, foils and C kites, TTs, Directionals, Landboards, Buggy.
- Brand Affiliation: None
-
Has thanked:
218 times
-
Been thanked:
529 times
Postby Herman » Sun Jan 03, 2021 10:58 am
Acceleration due to gravity is same for heavy or light objects. The only way the motion is influenced on the down stroke is the fluid dynamics, is it not. More kinetic and potential energy is in the heavy object, but if you extract it you will require more energy to make it fly on the upstroke via a system that is bound to be less than 100% efficient. Guessing extra weight is bad.........but doing the maths will give me a headache plus it is early in the morning and these thoughts could be garbage!!!!!!
-
Kamikuza
- Very Frequent Poster
- Posts: 7057
- Joined: Fri Jan 09, 2009 4:49 am
- Local Beach: Sabae Beach
- Favorite Beaches: Ol' Stinky
- Gear: This, that, the other
-
Has thanked:
220 times
-
Been thanked:
193 times
Postby Kamikuza » Sun Jan 03, 2021 11:32 am
PMU hacked your account, Peter?
-
PullStrings
- Very Frequent Poster
- Posts: 2284
- Joined: Sat Nov 26, 2011 7:54 pm
- Kiting since: 1999
- Gear: LEI's & Surfboards
-
Has thanked:
252 times
-
Been thanked:
281 times
Postby PullStrings » Sun Jan 03, 2021 1:06 pm
To let out the trapped air bring back the long zipper
-
lederhosen
- Frequent Poster
- Posts: 377
- Joined: Tue Apr 03, 2018 10:02 pm
- Kiting since: 2017
- Weight: 80kg
- Gear: Flysurfer Sonic4 12m
Kitech FRS 9m
Peak4 3m
Peak5 4m, 6m, 8m
Zeeko Spitfire Xlw, Xxlw
Eleveight Process 135
- Brand Affiliation: None
-
Has thanked:
119 times
-
Been thanked:
86 times
-
Contact:
Postby lederhosen » Sun Jan 03, 2021 2:13 pm
Peaks probably loose more energy through waterdroplets too, especially when they fly up. The ultralight fabric has an uneven surface with a bend at the trailing endge and each droplet that sprays off probably makes the fabric jitter because there is no supporting force from pressure like on a double skin.
-
14ToeSide
- Very Frequent Poster
- Posts: 1023
- Joined: Sun Nov 27, 2011 12:16 am
- Favorite Beaches: Sandy Spit
- Gear: North, Ozone, Naish, Flysurfer
- Brand Affiliation: What ever works Best that year
-
Has thanked:
5 times
-
Been thanked:
20 times
Postby 14ToeSide » Sun Jan 03, 2021 4:00 pm
-
PullStrings
- Very Frequent Poster
- Posts: 2284
- Joined: Sat Nov 26, 2011 7:54 pm
- Kiting since: 1999
- Gear: LEI's & Surfboards
-
Has thanked:
252 times
-
Been thanked:
281 times
Postby PullStrings » Sun Jan 03, 2021 4:13 pm
What do you call a circumsized double skin foil ?
A Peak 4
Return to “Foil Kites”