Contact   Imprint   Advertising   Guidelines

Ozone speed system adjustment

For all foil kite riders


kitexpert
Very Frequent Poster
Posts: 532
Joined: Sun Aug 09, 2015 11:20 pm
Kiting since: 2003
Gear: many kites, also diy
Brand Affiliation: None

Re: Ozone speed system adjustment

Postby kitexpert » Sat Dec 30, 2017 1:56 pm

kitexpert wrote:
Sat Dec 30, 2017 1:50 pm
Pulley line lengths are not at all critical in length, as far as they are long enough to bar sheeting range.
Of course then A line of the mixer and brake extension must be of equivalent length to get everything even (or some appropriate lenght).

kitexpert
Very Frequent Poster
Posts: 532
Joined: Sun Aug 09, 2015 11:20 pm
Kiting since: 2003
Gear: many kites, also diy
Brand Affiliation: None

Re: Ozone speed system adjustment

Postby kitexpert » Mon Jan 01, 2018 1:22 am

It is possible to make a double pulley mixer by using only three pieces of line. Lighter, easier and faster to do, also unnecessary loops and connections are avoided.

Dyneema is so cheap and mixer is so simple it is no drawback to replace it all after pulley lines are worn out - which takes quite a long time any way.

One pulley mixer needs only two lines.

I don't see what is "pro" and "tune" in Ozone's mixer- it just looks an ordinary pulley system. Not very optimized one.

alfigo
Rare Poster
Posts: 4
Joined: Fri Dec 06, 2013 12:12 pm
Kiting since: 2006
Gear: 10
Brand Affiliation: None

Re: Ozone speed system adjustment

Postby alfigo » Fri Jan 19, 2018 7:28 pm

I used the system used by Elf on my Chrono V2 13m using some of the original lines, since it allows to trim the mixer and the lines on the pulleys have much more travel so that I can use the kite with bars with greater depower. I have not yet been able to prove how it works. If anyone is interested I have the exact measurements of the lines.

Image

Image

Image

kitexpert
Very Frequent Poster
Posts: 532
Joined: Sun Aug 09, 2015 11:20 pm
Kiting since: 2003
Gear: many kites, also diy
Brand Affiliation: None

Re: Ozone speed system adjustment

Postby kitexpert » Fri Jan 19, 2018 9:50 pm

alfigo wrote:
Fri Jan 19, 2018 7:28 pm
it allows to trim the mixer and the lines on the pulleys have much more travel so that I can use the kite with bars with greater depower.
Fortunately modern kites are not as big they used to be and biggest ones are high AR kites. It means chord length is moderate, which means required depower range is accessible with normal bar movement.

For C line row 1m pulley line is usually if not always enough. It allows almost 50cm movement at C line row, which is located at ca. 2/3 of the chord. Then 1:1 brakes (=bar movement) would be 75cm, which is more than(any?) kite can tolerate without backstalling.

Like I wrote earlier line lengths of speed systems are not at all critical, as far as they are reasonable. In principle mixer length should be in proportion to chord length, but because it doesn't matter that much same mixers are used in different sized kites.

Mossy 757
Very Frequent Poster
Posts: 1514
Joined: Fri Sep 11, 2015 5:10 pm
Kiting since: 2013
Local Beach: First Landing State Park, Virginia Beach Oceanfront
Style: Kitefoil
Gear: Delta Hydrofoil and board. Cabrinha Velocity 9m, Flysurfer Sonic2 11m, Elf Joker-7 15m

Re: Ozone speed system adjustment

Postby Mossy 757 » Mon Apr 09, 2018 4:49 pm

alfigo wrote:
Fri Jan 19, 2018 7:28 pm
I used the system used by Elf on my Chrono V2 13m using some of the original lines, since it allows to trim the mixer and the lines on the pulleys have much more travel so that I can use the kite with bars with greater depower. I have not yet been able to prove how it works. If anyone is interested I have the exact measurements of the lines.
Don't you find that undoing those stopper knots is nearly impossible when you're tuning the kite? I have an Elf as well and need to keep a marlin spike in my gear bag when I'm messing with the speed system because undoing/retightening the knots within .5 cm tolerances of where you want it is really tricky.

User avatar
mgs
Medium Poster
Posts: 104
Joined: Wed Sep 03, 2003 10:55 am
Kiting since: 2000
Style: Cruising/Skimboarding/Flat Water/Waves
Gear: Ozone Chrono V1 18m
Ozone Chrono V1 12m
Ozone Chrono V1 9m
Ozone R1 15m
Ozone HL 12m
Zap Skimboard
Twin Tip
Location: England

Re: Ozone speed system adjustment

Postby mgs » Wed May 30, 2018 5:31 pm

alfigo wrote:
Fri Jan 19, 2018 7:28 pm
I used the system used by Elf on my Chrono V2 13m using some of the original lines, since it allows to trim the mixer and the lines on the pulleys have much more travel so that I can use the kite with bars with greater depower. I have not yet been able to prove how it works. If anyone is interested I have the exact measurements of the lines.
Image

That looks to be a neat system. The brake line (Ozone KR1) “Z” (yellow) looks to join the PB1 pulley line at the “pigtail” as opposed to connecting to the knot on PB1 pulley line.
Does that mean there is no need to adjust “Z” once you have lined up speed system/bridle connections.
From left to right A,B,C & KR1/Z (yellow line)

alfigo
Rare Poster
Posts: 4
Joined: Fri Dec 06, 2013 12:12 pm
Kiting since: 2006
Gear: 10
Brand Affiliation: None

Re: Ozone speed system adjustment

Postby alfigo » Wed May 30, 2018 10:17 pm

Mossy 757 wrote:
Mon Apr 09, 2018 4:49 pm
alfigo wrote:
Fri Jan 19, 2018 7:28 pm
I used the system used by Elf on my Chrono V2 13m using some of the original lines, since it allows to trim the mixer and the lines on the pulleys have much more travel so that I can use the kite with bars with greater depower. I have not yet been able to prove how it works. If anyone is interested I have the exact measurements of the lines.
Don't you find that undoing those stopper knots is nearly impossible when you're tuning the kite? I have an Elf as well and need to keep a marlin spike in my gear bag when I'm messing with the speed system because undoing/retightening the knots within .5 cm tolerances of where you want it is really tricky.
I use 3mm Dyneema lines and recently I have released the knots to adjust the Speed System without major problem.

alfigo
Rare Poster
Posts: 4
Joined: Fri Dec 06, 2013 12:12 pm
Kiting since: 2006
Gear: 10
Brand Affiliation: None

Re: Ozone speed system adjustment

Postby alfigo » Wed May 30, 2018 10:25 pm

mgs wrote:
Wed May 30, 2018 5:31 pm
alfigo wrote:
Fri Jan 19, 2018 7:28 pm
I used the system used by Elf on my Chrono V2 13m using some of the original lines, since it allows to trim the mixer and the lines on the pulleys have much more travel so that I can use the kite with bars with greater depower. I have not yet been able to prove how it works. If anyone is interested I have the exact measurements of the lines.
Image

That looks to be a neat system. The brake line (Ozone KR1) “Z” (yellow) looks to join the PB1 pulley line at the “pigtail” as opposed to connecting to the knot on PB1 pulley line.
Does that mean there is no need to adjust “Z” once you have lined up speed system/bridle connections.
From left to right A,B,C & KR1/Z (yellow line)
When testing the kite with this system, I noticed that the trailing edge was slightly folded which caused the kite to collapse. I had to move the Z line up 10 cm (making a new knot) to get the kite to fly correctly.

User avatar
mgs
Medium Poster
Posts: 104
Joined: Wed Sep 03, 2003 10:55 am
Kiting since: 2000
Style: Cruising/Skimboarding/Flat Water/Waves
Gear: Ozone Chrono V1 18m
Ozone Chrono V1 12m
Ozone Chrono V1 9m
Ozone R1 15m
Ozone HL 12m
Zap Skimboard
Twin Tip
Location: England

Re: Ozone speed system adjustment

Postby mgs » Sat Jun 02, 2018 3:38 pm

Hello alfigo and thanks for the reply.
I made a jig for the standard speed system to aid my understanding of how it works as well being able to make replacement pulley lines (PB1& PB2) or any part of the speed system for that matter.
My version differs slightly with PB1 pulley line has 2 pigtails, one to adjust “B” with the other to adjust “C”. Both “B” & “C” are with reference to “A”.
I’m planning to setup my 9m with this system soon.

User avatar
mgs
Medium Poster
Posts: 104
Joined: Wed Sep 03, 2003 10:55 am
Kiting since: 2000
Style: Cruising/Skimboarding/Flat Water/Waves
Gear: Ozone Chrono V1 18m
Ozone Chrono V1 12m
Ozone Chrono V1 9m
Ozone R1 15m
Ozone HL 12m
Zap Skimboard
Twin Tip
Location: England

Re: Ozone speed system adjustment

Postby mgs » Sun Jun 03, 2018 4:43 pm

Have made a start in adapting the speed system on one of my Chrono V1’s as per the image, it certainly works in aligning A,B,C connection points when PB1/PB2 pulley lines have shrunk.
The pulley line on the left is Amsteel with pulley line B being Liros DSL 600 (Sleeved Dyneema)
I’m just thinking if Pulley line PB2 needs to be a tad longer with a shorter blue pigtail as I’m not sure if the knot will hit the pulley, if indeed it would travel that far.
Speed System 03-06-2018.JPG


Return to “Foil Kites”

Who is online

Users browsing this forum: No registered users and 3 guests

cron