WHY ARE THE ‘RIGID THREAD LINES’ DIFFERENT?
The difference of our lines is that conventional Dyneema braided lines also have excellent breaking resistance characteristics, but can’t keep their original length when under tension. This is due to their entirely braided structure that sees the fibers being crossed over each other with an angle of approximately 30° compared to the load angle (0°). Once a conventional braided line is under tension it’s fibers will tend to align towards the load line and progressively start to stretch. A conventional braided line will stretch up to 10% of their original length when under load. (so a 25 meter line can stretch up to 25 cms).
Imagine by comparison the ‘Rigid Thread Lines’ like a widely used electric cable. Core copper wires are covered with a plastic protection sock. In the ‘Rigid Thread Lines’ copper is replaced by unidirectional Dyneema pre-tensioned fibers instead of braided fibers, covered (like the plastic part on the electric cable) with a very thin braided Dyneema sock to keep the internal non-braided unidirectional fibers in place and protecting them from abrasion.
This allows to create an absolutely direct connection between the bar and the kite, since what connects them together is an unidirectional non braided fiber core.
For this reason our exclusive ‘Rigid Thread Lines’ have a maximum stretch of 0,1% (so a 25 meter line can stretch up to max. 2,5 cms).
The ‘Rigid Thread Lines’ of RRD Kites will never be subject to adjustment, since they won’t even stretch under stress-related moves, for example by extreme loops or other radical manouvers, and consequently it is impossible to end up with stretched lines and/or of a different length and therefore the trim of the kite remains unchanged through the years.
The ‘Rigid Thread Lines’ will always be visually, technically and feeling-wise, compact and rigid throughout the course of their lives, maintaining all its physical and technical characteristics unaltered over the time.
The standard braided kite line has more stretch, which results in different line lengths, power absorption and reduction of performance, especially at the moment where you change the direction of the kite, where the load on the lines reaches its peak.