skydiverek

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Posts posted by skydiverek

  3. 20_kN

    ***I watch PD videos, and they said on all their thousands of tests, double stows have NEVER caused a bag lock!



    Yes, I recall them saying that although several people have disagreed claiming they have had bag locks on double stowed rigs. Some of them post on here. There are photos online showing a bag lock on a double stow. While I am not in a position to really argue (never had a bag lock so I would not know), I do know it's most certainly possible to wrap the stow tight enough that it wont release. Whether that is possible with two wraps is obviously debatable, but I know some people who even go as far as triple stowing their lines and that sounds like approaching bag-lock territory.

    Someone once argued that a double stow cannot cause a bag lock because even if the band did not release the PC easily produces enough force to break any rubber band. On it's surface, I'd agree, that sounds logical as a PC should generate way more force than any rubber band can withstand. However in practice, there are several photos and videos showing bag locks where the bands did not release (for whatever reason) and the PC did not break the rubber band. I am wondering why that is?


    [.image]http://www.skydivewestpoint.com/skydiving-information/images/1Packing_009.jpg[/image]

    https://www.youtube.com/watch?v=bmmxBP2zp9o

    The video above shows the COLLAPSED drogue, not an inflated drogue or pilotchute.

    Even if you triple wrap, the band has to break only in its single layer. You triple wrap, but only a single layer of the band goes to the deployment bag attachment point.

    Some pilotchutes are worn out, too small, have shrunk kill-lines, or the combination of these factors. Such PCs would not generate adequate force.



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  9. Hunterbeav

    Why would the manufacturer of the canopy not shorten the break lines themselves. If they knew it would increase the effency of the flare it seems like they would.



    Microlines (Spectra lines) shrink over time, so the excess is used over time.


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  10. skytribe

    Airtec like to tout themselves as the best - never had any issues etc. but that is pure marketing speak. The units work as well as any other unit - no better/no worse. They have had problems and I have reason to question their business ethics when a problem arises - they are aware of but don't make it public until they have a fix/resolution. This has resulted in a fataility which MAY have been avoided if the issue was made public. .



    Adrian Nicholas?

  12. JerryBaumchen

    Hi skydivrek,

    Quote

    MARS to the list. It does have Skyhook



    Make that 'did.'

    They have switched to the RAX System.

    Jerry Baumchen



    Thanks fro the update! I did not know that.


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  13. Quote


    Speaking of non-US manufacturers, there's a company (Avalon) out of Bulgaria that does license the SkyHook (no TSO I believe). That's the 5th SkyHook equipped manufacturer that I know about in the sport market.

    * UPT (designer)
    * Aerodyne
    * Sunpath Javelin
    * Vortex
    * Avalon




    Add Czech Republic made container MARS to the list. It does have Skyhook:

    http://www.marsjev.cz/en/real-x


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  18. Quote

    I am not completely sure but I think that UPT has approved the Precision Reserve in a Sigma, which would solve your problem. Ask UPT.



    From UPT:
    "We will never endorse the use of any other reserve tandem canopy than the VR-360 in the Sigma/Micro Sigma tandem system for the following reasons. The specifics of Sigma/Micro Sigma tandem operation can be affected by many components. One example; our drogues are designed to be shorter than the canopy lines so when a reserve is deployed while the drogue is attached, the Kevlar bridle will not damage the deploying reserve. This is just one of many criteria that we have. The other side of the coin is that we have no control of any other manufacturer's product. Example; other reserves have blown up in the past from tandem terminal openings. Ours is designed to open at terminal, hence the deep brake settings. I personally know that there are some good tandem reserve canopies, but we cannot take responsibility for their products in the same way they will not do this for ours. When a change is made with regards to components, it is the responsibility of the users.

    Because of the nature of Tandem jumping, the tandem is perceived as a system unlike sport containers. When something goes wrong with any component we are blamed or sued."

    SOURCE:
    http://www.unitedparachutetechnologies.com/ti/category/vr-360-reserve-canopies-in-sigma

  21. HansVanBael

    In addition to the original question. I'm wondering how regulations around the world deal with foreign jumpers coming to jump with different packcycles.
    As in: a jumper with an annual packcycle in his own country goes to another country with a 6 months packcycle, should he have it repacked to comply with the regulations of the country his visiting ???



    In this case the annual pack cycyle would be respected. You can even jump a non-TSO'd reserve and container in the U.S., if you are a visiting foreign jumper.

  22. masterrigger1

    Quote


    Like you, I'd love to hear from someone who won't pack them, and their reason why (other than the Canadian rigger who posted that 2-pin reserves are a separate rating that he doesn't have, and wouldn't be worth getting).



    If it has a speed bag instead of a standard freebag...No I will not pack it.

    The Speed Bag uses rubberbands instead of a stow pouch. This means that is is more prone to a freebag lock than the standard freebag simply because it has more locking stows.

    It was not long after the release of the Speed bag that a girl died using one in NJ which attributed to the death according to the investigator on site.

    If you end up with a mess like this, the last thing you want is a bunch of locking stows to have to pull out before you can get the canopy out of the bag.....

    https://www.youtube.com/watch?v=3FJp0Ku-6gg

    or this one:

    https://www.youtube.com/watch?v=aFSivezl80E



    ...or this:

    https://www.youtube.com/watch?v=ZZADyz4tD9I



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