Strong thin rope for kite Background: I never built a functioning kite (I had a few attempts, as a child), I never successfully raised a kite (no stable wind with enough force when a ready-made kite was available).
Current situation: I had an idea to finally build a working kite, BUT also to be able to raise it as high as possible - maybe several kilometers?
Question: what kind of rope is thin enough and also strong enough to make my plan successful?
I guess that for low heights, strength is not an issue, but for my plan, the situation is different. On the internet I found information more about the kite itself, and about how to tie the knots, rather than the better materials to be used.
Of course, I have in mind also the volume and the weight of the said rope, since I will have to transport it somehow.
Other related questions here and here.
Kite string is a product. It is designed to be strong and light to enable kites to fly under optimum conditions. For ordinary kites, ordinary kite string is sufficient.
High performance kites (large lift capability, stunt/performing kites) require higher breaking strength while retaining light weight.
Spectra line is constructed of high density polyethylene and is quite light and strong. I have used 1 mm thick x 2 mm wide Spectra line which had a breaking strength of 700 pounds. Another feature of this type of line is that it has very low stretch.
In the case of multi-line stunt kites, it's critical to have the lines remain at a specific length in flight. Spectra does this well.
Spectra is a brand name and the product can be found under other names.