This can be a bad combination if your equipment is not configured properly, or if you aren’t aware of the conditions you need to provide your parachute in order to have a safe opening. While “less elongation than steel” is a common and inaccurate refrain, Spectra is inelastic compared to Dacron. In ram-air canopy flight, line drag is significant enough to affect even low-performance BASE canopies. There is a noticeable difference in the glide performance of a Spectra lined canopy vs Dacron. Vectran, by comparison, absorbs enough water to where damp hairy lines can be an issue after landing in wet grass. When you land your parachute in wet grass on that first jump of the day, and go to re-pack it, you don’t want to be s-folding soggy lines into your tail pocket – especially if they’re nice and hairy after a season of use. Smoother lines make for smoother line deployments. This is a positive for tension knots, which become more likely as friction increases between line loops during deployment. Compared to Vectran, which becomes a hairy mess as it ages, Spectra stays smoother for longer. ![]()
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