kitebjorn said...
I've been flying 5th line kites since I started in 2005 and don't think I'd go for a 4 line setup. I like knowing that my kite will completely depower, but stick with me on the 5th line. I fly North kites.
I've never heard of the 5th line breaking before, but then I probably release the safety about once per season, so it doesn't get much wear.
I've seen and heard a few times when it has happened. It is a bad situation.
with some 5th line c kites the 5th gets stretched when there is a gust or a powerful move because the kite changes shape from flatter to a deeper c shape.
this: ( to this: C
This puts the 5th attachment point further from the bar when compared to the rest of the kite's attachment points. The fifth line being split into two lines before the attchment helps alleviate this problem in hybrids.
that's why all the stories i have heard of and the two i've seen were on c kites, with a single attachment point for the 5th. The 5th line on single attachment needs to be a little slack to allow for this. An alternative is using an elastic section which i think airrush used to make for converting your old c kite to a fifth line (still flying 4 line style with the 5th for relaunch and landing)
there's a whole lot more to say but i won't go there now.