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Everything posted by jurgencamps

  1. jurgencamps

    What to do when an instructor gives bad/dangerous advice?

    Good advice Why should he jump after the free fliers? Very often the "higher puller" does not open as high as they think. If one of the free fliers who jumps before him, opens higher (intentionally or not), you will now have the risk of collision. He should respect the normal exit separation. He is a solo belly flier, so he should go after the group of belly fliers and use the normal exit separation. If they scream by, they did not respect the right exit separation. If two tandems both with a cameraman jump after him. Does the second cameraman pulls higher than the first tandem? Do you really believe that???? Same reasoning!!! Remark: The exit order belly fliers first, free fliers, AFF, Tandem … is only correct for jumpruns into the wind.
  2. From uspa.org... "USPA members receive third-party liability insurance to include bodily injury and property damage while skydiving at a sanctioned drop zone." USPA offers membership without regard to citizenship, and that membership includes benefits without regard to citizenship. Hay Chuckakers, Do you have your USPA membership card at hand? Please turn it arround and have a look at the backside. https://uspa.org/Portals/0/files/INS_ThirdPartyLiabilityOverview.pdf Foreigners are only insured in the USA (its territories or possessions) or Canada. For ex. a Belgian skydiver (non-green card resident) jumping in Europe at USPA group affiliated DZ is NOT insured.
  3. jurgencamps

    PDR Size Discrepancy

    Just wanted to explain that using a different measuring method can give you a different result. Same analogy applies to measuring the surface. In the PIA document, PIA has measured all those canopies using their method. This allows the reader to compare the size of the surface of different brands (or types) of canopies. PIA quotes different surfaces for a (same size type) optimum and PDR reserve
  4. jurgencamps

    PD Reserve versus PD Optimum Landing Kinetic Energy

    Objection! PDs and Optimums are the same size. They're measured in the same way. And no, PD has not misnamed their reserves, they are exactly the size they are labelled, when measured by PD's method. And how come that PIA measures different sizes when they use their "standard" measuring method?
  5. jurgencamps

    PDR Size Discrepancy

    I do not think that the answer is that simple. But how do you / they measure the surface of a canopy? http://www.performancedesigns.com/docs/packvol.pdf, I. canopy size Compare it with the method used to measure the volume of your car trunk. They put balls off x cubic inch in the trunk. If they use bigger or smaller balls, the measured volume of the car trunk changes. So do you measure the top or the bottom surface of the canopy? The projected surface on the ground or the curved surface? See the attached picture. Which line (distance, length) do you take to calculate the surface of your square? If the canopy is not 100 % square, but elliptical …
  6. +1. One day I had to land my reserve on a tennis court, surrounded with trees. After you have executed your EP, you do not always have a lot of options left to pick your landing spot. I have a 150 reserve and a 90 / 120 main.
  7. jurgencamps

    PD Horizon only for wingsuit jumps?

    If you read this http://www.performancedesigns.com/docs/Horizon_Flight_Characteristics.pdf, and more specific what they say about landings; you will understand that it is not an easy canopy to land. You can make good landings with the canopy, if you master that art. So, I think that the PD Pulse (the successor of the silhouette) is a better choice for you.
  8. jurgencamps

    PD Reserve versus PD Optimum Landing Kinetic Energy

    http://www.pia.com/piapubs/TSDocuments/TS-104CanopyVolume.pdf Just for your information, a 170 canopy brand X or type X can be smaller than another 170 brand Y or type Y. There are several methods to measure a canopy. See the table in the link above for the "real" surface of canopies (all measured according the same method) Also: PD always has "misnamed" their PDR reserves. They are in fact bigger than what the name suggests. An optimum 126 = 126 square feet A PDR 126 = 137 square feet. In a presentation "dying for airspeed - Bryan Vacher" http://www.skydivemag.com/article/dying-for-airspeed?fwd=1 you can find a table with horizontal and vertical airspeed. Know that your airspeed is a combination of the horizontal and vertical airspeed http://www.beterrekenen.nl/afbeeldingen/driehoek_abc.png For ex. if a skydiver with an exit weight of 90 kg / 200 pound, downsizes from a 170 to a 150, he (or she) will have + 23 % more kinetic energy when he hits the ground during a no-flare straight-in approach.
  9. jurgencamps

    RSL and Skyhook

    The skyhook is an RSL with something extra.
  10. jurgencamps

    Looking after your 3 rings

    All/almost all rigs have now the mini 3rings. A long time ago,
  11. jurgencamps

    Reserve packing cycle per country

    Belgium (both federations): 6 months France: 1 year
  12. jurgencamps

    Firebird Germany customer service experience

    I have several friends who jump their evo rigs and I know that they are very happy with the fast (after sales) service. Maybe you were dealing with the wrong person (the coffee woman?) or they thought that you were a scammer? I don't know.
  13. jurgencamps

    Orientation of my lazy bag. video question

    have you checked this link? (from the maker of the mpod) http://www.pgasus.be/start.php?pg=text&item=mPOD to tired for the moment to see if you made a mistake or not.
  14. jurgencamps

    PD PULSE for wing suiting?

  15. jurgencamps

    Maculated reserve loop

    euh, which photo?
  16. jurgencamps


    Be sure to brief the participants very well that low turns and target fixation will spoil the party. Some participants at such events do not have a lot of jumps. Jurgen
  17. jurgencamps

    low volume reserves

    Optimum, PD Speed, Paratec
  18. jurgencamps

    understanding toggle pressure

    I noticed that with the old line set on my Velo 90, the toggle pressure felt quite lower than with the new line set. My old brake lines were + 15 cm longer than the factory setting. After the reline, I had them on the factory setting and the pressure felt much heavier. I really felt the difference when flying in deep brakes. I do not say that toggle pressure was lower, but it really felt like that. Probably the higher or lower arm position plays a role in this.
  19. jurgencamps

    PRO-DYTTER does not switch off

    I am not sure, never had one, but I think that you cannot switch off the first pro dytters. Only the second version had that option. Know that several jumpers never switch over the never versions neither.
  20. jurgencamps

    Soloy C206 vs C207

    We had a C207 soloy in 1990. Exit speed was high, (110 knots). Okay the pilots were afraid to stall it and after they had more experience, the speed was lower, but still quite high. The door is quite far to the back. An other DZ here operates a C 206 soly and if I have to choose between them, I would prefer the C 206. I do not have more info.
  21. jurgencamps

    Freelance photographer

    Contact the DZ where you want to spent some time and ask them.
  22. jurgencamps

    L & B on-line manuals

    Manual-wise, nothing changed.
  23. jurgencamps

    Swoop gone wrong pictorial

    Maybe we also can start a thread like that one about ..... skydiving? Oh, wait, somebody already did that http://www.dropzone.com/cgi-bin/forum/gforum.cgi?forum=14;
  24. jurgencamps

    Optima Battery Indicator

    No, but there are more factors (quality of the battery, temperature)