Rick came up with the Spectra/Dyneema "Qline"(pic below) that is supposed to test out at ~600lbs. We'll see. He's also going to find us some braided Spectra kite line of about the same strength, but without the sheath that is included in the Qline. This sheath adds weight and stiffness that we don't want.
Bob Parks of Daedalus fame is also consulting on the project (how cool is that?) and he just emailed that he has some braided Kevlar that we can test.
In addition to the 6" testing fixtures seen in the previous pics, I also built 2", 3", 4" and 5" fixtures. Once we settle on a particular line, we will test on the progressively small fixtures to see what gearing options will be available.
