Just tested that Spectra Qline we got from Rick. Didn't include any pics because it's the same test rig as seen a few posts ago and this line is the color of the floor so there wasn't much to see anyway.
This line is rated to ~600lb and once I got to 400lbs I didn't see the need to break it and ruin any more line than necessary. We plan on being in the 2-250lbs range on the spool drive.
Methodology:
I wanted any slack in the fixtures to be taken up, so I pulled line to 400lbs and then released the pressure down to 100lbs. I marked the line and referenced it against the floor and then pulled it up to 250lbs and checked the reference markers and repeated at 400lbs.
Stretch:
100lbs to 250lbs = 0.7%
100lbs to 400lbs = 1.5%
Below 100lbs I could not be sure where the biggest 'stretch' results came from (chain catenary, etc) so I leave that out -- additionally, I plan on prewinding the prop spool on snug to make sure there is no slack in the loaded spool.
All in all, the stretch testing came out better than I expected for Spectra and within the stretch that I was hoping for with the carbon. This line is far thicker than the carbon so 'spool stack' could introduce some energy robbing compression into the system. We'll have to do further tests with the actual spool to know.
JB
