Velopilot 0 #1 February 10, 2004 I was wondering, would the length of your risers have any possible effects on your opening characteristics. Mainly would shorter risers have a higher tendency to help induce line twists and vice versa. Quote Share this post Link to post Share on other sites
Treejumps 0 #2 February 10, 2004 Any change in your system will effect your opening. When I extended my risers I got better openings. It felt like the additional length dampened the energy trasfer down the lines. Less dancing on opeing too. YRMV. Tree Quote Share this post Link to post Share on other sites
cliffharris 0 #3 February 10, 2004 Hmm-I didn't notice any difference when I went from 22's to 24's. I adid away w/ my line twist incodents when I started leaving 18-24 inches of unstowed lines and additionaly making my last two stow bites slightly smaller than the rest. Quote Share this post Link to post Share on other sites
Layne 0 #4 February 10, 2004 cOME ON YOU ARE TALKING ABOUT 2" ITS NOT GOING TO MAKE DIFFERENT YOUR PARACHUTE IS PROBALY 2" OUT OF TRIM ANYWAY. LAYNE Quote Share this post Link to post Share on other sites
diablopilot 2 #5 February 10, 2004 SO you think 2" can't make a difference? Go find out what the mod for the CF1 was.---------------------------------------------- You're not as good as you think you are. Seriously. Quote Share this post Link to post Share on other sites
Layne 0 #6 February 10, 2004 hE WAS TALKING ABOUT LINE TWISTS ON OPENINGS NOT THE LINE TRIM TO MAKE IT STAY OPEN IN FLIGHT LAYNE Quote Share this post Link to post Share on other sites
cliffharris 0 #7 February 10, 2004 I don't. not unless you're talking about laying pipe. Quote Share this post Link to post Share on other sites
diablopilot 2 #8 February 10, 2004 The point is *anything* can change the openings, and flight of your canopy. 2" longer risers, 12" longer bridle, 2" bigger P/C. It all has an effect.---------------------------------------------- You're not as good as you think you are. Seriously. Quote Share this post Link to post Share on other sites
BrianSGermain 1 #9 February 10, 2004 We haven't found and significant correlation between riser length and opening characteristics. The frequency of line-twists seems to be married more to bag stability on deploment. "Bag wobble" and spin seem to be the source of most line-twists. Insufficient pilot chute drag, and or excessive line-stow extraction force is the greatest correlate in that department. In other words, if your pilot chute is wimpy, the bag will lift slowly. This tends to be less stable and more likely to experience a heading change in the process of reaching full line-stretch. Likewise, if your elastics require significant force to extract the stows, the bag will have a greater frequency of "wobble" and rotation. Keep in mind that the closing stows must keep the parachute in the bag until full line extension. The non-locking stows, however, should be light enough to allow the bag to ascend unimpeded. This idea is contrary to the traditional belief that the speed at which the bag ascends has a correlation to opening speed. This has proven not to be the case. Again, the parachute must remain in the bag until the lines are fully extended, but the rest of the deploment must be swift and unhindered. This is the same proven concept as the reserve freebag. Freestow main bags are making a comeback, and the R&D is showing very impressive results in this area. The last significant factor in the genesis of line twists is the fit of the deployment bag in the container. If the bag is too big for the main pack tray, the significant forces required for extraction can increase the frequency of bag instability and rotation. I recently demoed a canopy from a competitor that had a bag too large for my container. The canopy was correctly sized for my rig, but the inflated canopy inside the bag made the fit rather snug. Although I pointed this out to the representative, they seemed to blow me off in this regard. Had I not been an experienced test pilot, I never would have been able to kick out of the many line twists that ensued from the unstable bag deployment. That would not have been good fo their sales. I know this has strayed from the riser length question, and for that I appologize. I just wanted to utilize this opportunity to address the issue of line twists as completely as possible.Instructional Videos:www.AdventureWisdom.com Keynote Speaking:www.TranscendingFEAR.com Canopies and Courses:www.BIGAIRSPORTZ.com Quote Share this post Link to post Share on other sites
Layne 0 #10 February 10, 2004 yOU OR I AREN'T GOING TO BE ABLE TO TELL A DIFFERENT MAYBE IF YOU HAD A COMPUTER TO TELL ALL THE DRAGE. WITH THE OPENINGS MAYBE IT HAS SOMETHING TO DO WITH THROWING A BAG OR ZP OUT DOING 120 MPH'S YOUR GOING TO HAVE CHANGE. LAYNE Quote Share this post Link to post Share on other sites
diablopilot 2 #11 February 10, 2004 QuoteyOU OR I AREN'T GOING TO BE ABLE TO TELL A DIFFERENT MAYBE Let me correct your statement. YOU aren't going to be a ble to tell. Oh and the Caps Lock key is way over on the left hand side of your keyboard. Try it.---------------------------------------------- You're not as good as you think you are. Seriously. Quote Share this post Link to post Share on other sites
SkymonkeyONE 4 #12 February 11, 2004 "Layne" is the alter-ego of Andy Farrington. Don't feed the trolls. Quote Share this post Link to post Share on other sites
diablopilot 2 #13 February 11, 2004 Damnit. Got me hook, line, and sinker...... I'll get cha' back Andy! ---------------------------------------------- You're not as good as you think you are. Seriously. Quote Share this post Link to post Share on other sites
SkymonkeyONE 4 #14 February 11, 2004 You must have forgotten the "SLIDER TRIX" thread. Quote Share this post Link to post Share on other sites
diablopilot 2 #15 February 11, 2004 Yep. Ignored it after the first post. Someone needs to get that boy out of the shitty WA weather. He's dangerous with free time on his hands.---------------------------------------------- You're not as good as you think you are. Seriously. Quote Share this post Link to post Share on other sites
KellyF 16 #16 February 11, 2004 Hey, there isn't a cloud in the sky today!VSE on Facebook Quote Share this post Link to post Share on other sites
diablopilot 2 #17 February 11, 2004 QuoteHey, there isn't a cloud in the sky today! There ought to be a little dark one right over Andy's head!---------------------------------------------- You're not as good as you think you are. Seriously. Quote Share this post Link to post Share on other sites
KellyF 16 #18 February 11, 2004 If the sun follows anyone around, it's Andy Quote Share this post Link to post Share on other sites
deathtrap 0 #19 February 12, 2004 Not that it bugs me but that is pretty weak to rat somone out just for makeing a joke. "Have a good one" Rick Quote Share this post Link to post Share on other sites
Spizzzarko 0 #20 February 12, 2004 Stir the pot man!!! Quote Share this post Link to post Share on other sites
Velopilot 0 #21 February 14, 2004 thanks for everyones information. Quote Share this post Link to post Share on other sites
