Tuning kite bridles

> 10 years ago
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weebitbreezy
weebitbreezy
635 posts
635 posts
8 Jan 2015 7:18pm
I have noticed that the flying characteristics of kites of the same range can be incredibly different. E.g. I bought 2 (brand new) Naish Rides on special offer - the 8m is powerful, surges in gusts towards the edge of the window and is one of my favourites. The 10m is a pig. Its powerful, tries to drag you down wind all the time, stalls easily in lulls and doesn't like moving to the edge of the window making it a chore to go upwind.

I'm au fait with the principles of tuning the bar but I don't know how I might go about tuning the bridle of kite to account for stretch. Unfortunately few manufacturers are kind enough to list bridle sizes anywhere so the best I can do is make sure the bridle lengths match. This won't account for flying line - steering line imbalances though.

Has anyone seen a good/simple guide to understanding and tuning the bridles?

Ta
cauncy
cauncy
WA
8407 posts
WA, 8407 posts
8 Jan 2015 9:24pm
get some longer aftermarket pig tails, tie a knot above and below you factory knot, then one exactly where your factory set knot is, this will allow you to open or close the face of the kite to the wind , its important to have these identical, approx. 30 to 50mm apart, you can also do this to you rear pigtails, some combos work and some don't, its crazy what an extra knot to you settings can do, ive a setting little more than 30mmm from my standard setting, it turns the kite into a super powered model, so air some caution
weebitbreezy
weebitbreezy
635 posts
635 posts
8 Jan 2015 10:38pm
Interesting idea. So in my case where I want to move the kite further to the edge of the window I'd ideally want an extra (30mm say) to the steering lines so that the kite has a lower (less powered) angle to the wind and flies further out.

I assume I could go out in lower powered conditions and play with the trim strap for a similar effect to get an idea of where the kite feels balanced? i.e. If I have 60mm of trim strap to that would equate to a knot 30mm longer on the steering lines?

Are there any rule of thumb combinations? Fly at 12 in light winds say and then adjust the trim so it stops stalling with the bar pulled in full?

Cheers
pedleym
pedleym
WA
168 posts
WA, 168 posts
9 Jan 2015 5:29am
Sound like your choking the kite
What wind speed are you flying in
Smithy
Smithy
VIC
859 posts
VIC, 859 posts
9 Jan 2015 10:52am
Adding and subtracting from either front or rear pigtails will do nothing different to changing amount of depower at the bar, think about it you are just changing flying line length....
cauncy
cauncy
WA
8407 posts
WA, 8407 posts
9 Jan 2015 8:47am
Smithy said...
Adding and subtracting from either front or rear pigtails will do nothing different to changing amount of depower at the bar, think about it you are just changing flying line length....


A bar sheets in to and out to a point, your front lines are static to a point, some manufacturers adopt this method some don't, if you fly loaded 5th lines you'll understand the method, as said air with caution as you can have backstall in low winds with a fully open kite and overpowered in high winds, a lot of good riders will scrap factory settings for their own feel
weebitbreezy
weebitbreezy
635 posts
635 posts
9 Jan 2015 7:42pm
pedleym said..
Sound like your choking the kite
What wind speed are you flying in


15 knots (cold northern hemisphere winds) gusting 25. Could well be choking the kite.

I have tuned the bar and lines twice and the other kite I fly it with (same year and model kite) flies nicely. This one seems to want to sit deep in the wind window. Hence looking to make sure the bridle is spot on.

My problem is keeping the kite at the edge of the window. I can edge hard to fly the kite to the edge of the window but as soon as I sheet in again it drops back into the power.
Smithy
Smithy
VIC
859 posts
VIC, 859 posts
10 Jan 2015 1:57am
weebitbreezy said...

My problem is keeping the kite at the edge of the window. I can edge hard to fly the kite to the edge of the window but as soon as I sheet in again it drops back into the power.


Definitely sounds like you are over sheeting. Try this, while standing on the beach with the kite at 12, sheet in the bar all the way and watch if the kite drops back in the window, which based on what you have said it will, now adjust your depower line until the kite moves back to its most forward position. Now when you sheet your bar in the kite will power up without dropping back in the window. Go for a spin and see how it feels on the water.

Some kites are designed so you can sheet in to the stopper for full power trim, others require the rider to know the sweet spot on the bar throw.


pedleym
pedleym
WA
168 posts
WA, 168 posts
10 Jan 2015 5:55am
15 knots is too low for a 10m to work efficiency.
Gusts make it worse for getting dragged downwind
I wouldn't think the bridal is out in a newer kite, but just compair bridle line size from left to right see if there even.
Use the depower it is for timing the kite to condition
Light wind will make an oversheeted kite worse.
The lighter the wind the better your Technic needs to be
gkawo
gkawo
VIC
193 posts
VIC, 193 posts
10 Jan 2015 9:26am
I did something similar to an old kite of mine by replacing the entire bridle system with a design of my own, and it worked, but to am extent. I think you will find that it also heavily depends on the shape of the kite itself. Flatter aspect kites tend to love reaching for the edge of the wind window, whereas more curved kites tend to love sitting back more.
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