dgw

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Everything posted by dgw

  1. Two minor things. Clicking on a fully open thread does not open the thread, it just reloads the sub forum. When one opens a thread with new posts, the first new posters name is off the top of the screen. One has to scroll the screen down to see who the poster is (if one doesn’t recognise the posters avatar) and then read the contribution. This is what it looks like on a random pick: It’s a minor thing but it niggles me a little. I echo the thanks offered above for the effort put into this site improvement.
  2. Agreed. I am very much pro RSL / MARD. However, people should arrive at their own informed view. My issue in that regard was that the coach was promoting the no-RSL rig as superior equipment, without at least covering the pros of RSL / MARD rigs.
  3. They can be money well spent, but I sound a note of caution. I have attended on two occasions such courses in the UK by a known outfit. On one occasion, the advice for getting back from a long spot with a tail wind was to make oneself as large as possible so that the tail wind would push one more efficiently through the air. I challenged this and eventually prevailed, but only temporarily - by the next day, he had thought about it further and reverted to his former understanding. That advice has also been given by a well known diminutive coach, I am reliably informed by a former team mate. Secondly, attendees at the second course were encouraged to use ‘clean equipment’, by which he meant rigs with no RSL or MARD for reasons of getting stable etc, without at least acknowledging the potential pros and cons of both philosophies. For newer skydivers, this is poor practice. Caveat emptor, and those that fly with them.
  4. I note the same. I’ve used the site on desktop, mobile phone and tablet since the inception of the new site. All devices are fewer than 24 months old and are up to date on operating systems. On the iPad, and the windows computer, each time I click on a link, the secure site padlock disappears, there then follows a pause of a few or up to twenty seconds, and the ‘secure’ padlock reappears. As soon as the padlock appears, service is normally quick. I also miss the ‘how many new posts’ red number. That was the most useful part of the old presentation format in my opinion / usage. Many thanks for the effort put in to this.
  5. I have a V348 with a Smart 150 and a V348 with a PD160. The Smart is a much more comfortable / smaller fit than the PD160.
  6. The attached is from the PD Horizon manual. I'll leave the physics to Yuri.
  7. I think the physics of what you say is difficult to refute. I agree with the idea. Safe implementation might be a practical issue, but implementation of the 'standard' method is also potentially a practical problem. Out of curiosity, I downloaded a PD reserve manual to see what the practice is on (a) reserve parachute. It's a TR-375, which was just the first manual that I happened upon. The attached photograph shows the slider packing method to be ES
  8. Wings listened and they changed the reserve PC design. What about all of the legacy equipment? 6 years of new pilotchute does not cover off a large fleet of 6+ year old Wings containers in the field.
  9. His side flaps look pretty similar to the manual image to me. (I am not a rigger.)
  10. It doesn't have to be. You can use the 'alternative' method and have the kill line window visible.
  11. This is all very strange, but obviously the prosecution didn't do enough to convince the jury of his guilt, certainly not enough to get a majority decision. Here's an article from The Times of 24 November. It sets it out reasonably clearly, in my opinion.
  12. http://www.uk-skydiver.co.uk/cms/files/category/4-manufacturers/
  13. It is either an old Racer or a TSE Chaser, which was (in my opinion) a clone of the Racer. I have one or more Chasers and without digging them out, they are a product of the '80's.
  14. It's an FAR, not a technicality. ***(And couldn't you at least offer to unthread the cutter from the loop without doing a full repack?) I don't do that, I do offer to open (a reserve I packed), remove the AAD, and re-close it. FAA FAR Part 65 and 105 are very short, not much to them. As a skydiver, you should be well versed on the FAR's that cover skydiving. Derek V Having an expired Cypres in a rig, which has been maintained, and not turning it on, is in accordance with the manufacturers instructions. They instruct you not to use it after 12.5 years. I don't think (I haven't checked) that they instruct an owner to remove it from a rig after 12.5 years, just to not use it?
  15. The skydiver and the reserve pilotchute, once deployed, have different terminal velocities. The reserve pilotchute terminal velocity is lower than that of the skydiver. After the transient launch period (and all that goes with that..), this differential (or part thereof) results in the launch force applied to the free bag through the bridle. The launch of the free bag does not require the reserve pilotchute to achieve its natural terminal speed whilst connected to the skydiver. I think...
  16. Unfortunately I could not view the content due to rights restrictions. But, I am sure I can hazard a good guess at the content. The reality is that 'forensic' is a misused word. Forensic means something pertaining to litigation. Forensic science is (or should be) regular, often very basic, science that is used in support of litigation. It is as good as the scientist who does the science. The same applies to 'forensic' accountants, 'forensic' IT consultants, and the whole medico-legal industry.
  17. Well, whilst forensic science is generally helpful, it, or the implementation of it, is fallible. http://www.thetimes.co.uk/tto/news/world/americas/article4162314.ece
  18. This. The one and only time I ended up low was just this, and I knew it was happening as it happened. Cameras are a distraction.
  19. I had one. The person that I sold it too had a cutaway and an RSL deployed reserve. The RSL took the entire reserve handle away with the main parachute.
  20. Thank you very much. I had in mind a much more complicated system. It is not dissimilar, in principle, to a Delta II Parawing I bought which had a modified reefing system from the original. It was a wrap around the lines, with a pin release attached to an extra line. AH restored the original system (OSI). If you have time, I'd love to see the test.
  21. There is a UPT packing video somewhere where the gentleman demonstrating the closing method used the bottom routing. He said, I seem to recall, that UPT no longer really used the top routing. Or words to that effect. I see the bottom routing as having two advantages - a much lower risk of the pin piercing the bridle, and you don't need to leave the bridle slack above the pin. Quite a few people do not know about the reason for the velcro patch.
  22. See page 68: http://unitedparachutetechnologies.com/..._07_44_13%5B1%5D.pdf
  23. Me too - I'm struggling a bit with the installation - I would be very interested in any video footage of the Volplane in action.