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.