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sundevil777 last won the day on October 5 2019

sundevil777 had the most liked content!

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  • Main Canopy Size
  • Main Canopy Other
    Pilot ZPX
  • Reserve Canopy Size
  • AAD
    Cypres 2

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  1. I don't think that sort of system is in use currently. With the existing skyhook sort of collins lanyard system, depending on which side of the main riser breaks, you either have both sides cut away and reserve activated, or a high speed streamer/one riser attached but no activation of the reserve, which is OK also. Bill Booth I believe has previously written on this forum about the inherent weakness of mini risers possibly being the most practical way of limiting force. Maybe we'd be better off to not have the reinforcements on mini risers, but have to keep a close watch for signs of damage and replace them after a certain number of jumps or use some force test setup to confirm a minimum strength if in doubt...Risers would need to be made very consistently, maybe destructively tested samples confirming things. It would be a hassle, but could be effective.
  2. A French way of making riggers crazy. I had not considered how the loops would have to be so close to identical.
  3. My memory is that it was a French way of making sure both risers left before the RSL activated the reserve. Used for at least some time on parachutes de France rigs, at least some of them.
  4. Nice, I've never liked the idea of planning to throw your cutaway or ripcord for this reason. I don't doubt my ability to pull, I don't doubt the ability of objects in the air stream to foul a canopy.
  5. It might be that the new version was ready to go some time ago, but the trigger wasn’t pulled because they were still selling the old model easily, and pulling the trigger on the new model might mean a significant investment in production tooling. Their competition (G4) could reduce sales enough to reconsider the need for a replacement.
  6. I jump a Pilot with Dacron lines. I wonder if this talk of stretching risers might all be pointless. What we first should be figuring out is how much of a "crumple/stretch" zone is needed to significantly reduce a hard opening.
  7. Dacron lines rock! The characteristics of dacron lines and slider grommets play well together, or some such thing.
  8. When asking for advice on the internet, a person should expect to provide the same relevant information as if it was being asked in person.
  9. As a newbie asking for container-size advice, you ought to confess your weight, so we can know the WL you’re considering.
  10. Many mfgrs make longer/narrower versions, for the Infinity they have an “N” at the end of the size designation, for example I-56N.
  11. High strength to weight ratio does not mean high ability to absorb impact. I would expect carbon fiber composites to not do well in terms of toughness (area under the stress strain curve). My memory was that they are relatively easily damaged by dropping on a concrete surface for instance. The damage from such an impact is not just aesthetic damage, it significantly reduces the strength. Please correct me if my impression is wrong.
  12. Why is a carbon fiber shell critical to you?
  13. Snoridian Perrisote Ha! The decision boils down to what you want to be called.
  14. Quite right! I'll choose to cut my cutaway pull force in half instead of having mini-rings. This is especially true for heavier jumpers, and when cutting away from spinning mals.
  15. If we assume a total of 10 minutes of UV exposure for each jump, which I think is a reasonable number, I think it would help us to get a perspective of how much our gear is exposed during a season of jumping: 100 jumps = 100*10/60 = almost 17 hours of exposure. You may think the 10 min/jump is too much or you jump more/less, but we already allow the sun to drench our gear. I don't know how much time it might take for UV light to take care of the cooties on nylon, but I wouldn't expect it to be hours.