Allow me to introduce myself; my name is Jan, I'm from the Netherlands and I've been flying kites for the better part of my life, and have been building them for some 40 years.
So, being new to this forum, I'm actually an old member...
When my kids were young, we used to go kite flying on weekend, visit festivals and build kites during the week.
I've sew/glued together parafoils, delta's, sled, a Hewitt flexkite, a Ed Grauwel parashute (in 1 m and 5 m) the ripstop kites survived, most plastic ones got brittle over time and had to be rebuilt.
When the kids were strong enough to handle a two line stunter, I also made a few of those, flying in formation is a good exercise when the wind is strong...
Then my son discovered RC (competition) boating, dragged me into it and for the next 15 years flying kites tapered off to just the vacations.
Last year we quit racing in competition, which freed up some free time, I got my kites out more often and discovered all possible sites online, something that wasn't there when I started out.
From my RC boating, I saw several Chinese kite suppliers, knowing the (lack of) workmanship on the boathulls I purchased from them, I ordered a few kites from Banggood.
A small bat kite and an Eagle.
This seller uses the same pictures as the Banggood site:
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Upon arrival, the central spar of the eagle was broken during transport, so that one had to be replaced, no biggy, as I still had spare carbon, both solid and tube.
To cut the cost of production, all spars were attached to the fabric with these solid plastic pockets, using a hollow rivet, which works on smaller kites, but not on a 180 cm (70") span.
When I assembled the kite indoors, the fabric started to tear under the tension.
I took out the rivets and use a piece of Dacron to make some pocket which were sewed on, much better.
I also added stoppers (pieces of silicont tubin CA'd in place) on the wing spars to keep the fabric from tearing under the tension of the spreaders on the wings and central spar.
A short testflight reveiled the kite had been sewn together 'slightly' asymmetrical, it pulled to the right and the only thing it would do without adding a tail, was spiral to the ground.
I contacted Banggood, showing pictures of the assymetry, the 'upgrades' I made and I pointed out that what they were selling was a too cheap knock-off, with design features removed to lower the costs even more, poorly assembled etc, etc.
Having contact with Banggood is usually very smooth and they immediately took the kite from the site and offered me a 40% discount on my next 'quality' kite purchase.
I accepted the discount and ordered a couple of more (different) kites, knowing fully I had some work behing the sewing machine coming.
Back to the eagle.
I took the wings off the central section and put it back together as symetrical as possible, without redoing all the sewing.
I took the small batkite and the eagle out yesterday and to my surprise, the small batkite just required a small tail to keep flying, while the wind was a bit too strong 4Bft) for the thin tubing of the eagle, which was blown out of shape and wouldn't fly properly.
As I live in a country where it's windy more often than not, I 'need' kites that will fly in all kind of weather without crashing or falling apart.
When I google for 'eagle kite' I find several kites that look exactly like the one I have, but with an extra spar in every wing on which there's an extra triange for the bridle, or with the spreader under the kite in stead of behind the sail...
Odd, these seem to be the ones that do fly 'out of the bag'.
Question: if I add additional lines to the bridle, to keep the eagle from folding too much by incorporating lines from the end of the spreaders to the kiteline, about 1,5 m in front of the kite, would this allow me to fly it in higher wind?
I added two pictures, one with the eagle listing to the right severely (prior to the subsequent crash) The red line is where the tail should point if the kite was flying level:
And one showing the eagle deforming in too much wind, with the extra lines I proposed: