riggerrob

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Everything posted by riggerrob

  1. riggerrob
    When the planet dominates my peripheral vision. AKA when I get "ground rush."
  2. riggerrob
    ................................................................................... Yes, increasing the front-to-rear dimension adds fabric (drag) area without affecting reefing (friction on suspension lines) You can increase the front-to-rear dimension (up to the maximum distance between the B and C lines) before you affect the reefing affect on the suspension lines.
  3. riggerrob
    The first RSL was invented by Perry Stevens. It was installed on the first Security Pigyback container.
  4. riggerrob
    Dan Poyner wrote the Skydiver's Handbook. Michael Turoff helped Poynter update the last edition ... Some Brit wrote a book about learning how to skydive in seven days ...
  5. riggerrob
    ***... NOW... the real question as to recovery time. It is multifactorial. First, the sternum will take WELL over 2 months to heal. Well over. ...*** ................................................................................. I only bruised my sternum and ribs, but it was a good five months before I was strong enough to return to skydiving solo and a couple more months until I was strong enough to resume tandems. I seem to heal much slower after age 50.
  6. riggerrob
    Reduced colour vision can also be a sign of hypoxia.
  7. riggerrob
    RW-1 and RW-10 look to be the same thickness ... at arm's length. The next step is to measure them with micrometers. RW-1 was introduced in 1981 ... is rated for 3,000 pounds and was the first slotted harness ring. RW-10 looks the same at arm's length. You can only tell the difference when you look closely at the fillet where the slot meets the ring. Because they are full thickness through the fillet, RW-10 are rated for 5,000 pounds which makes them strong enough for tandems and military freefallers who like to jump with rucksack, rifle and snowshoes. ... the sort of military-freefallers who think 100 pound rucksacks are for sissies.
  8. riggerrob
    Old men protecting their priveleges.
  9. riggerrob
    ................................................................................ You jumped into battle at age 17???? Where was the battle ... er ... enemy-held territory?
  10. riggerrob
    I stand corrected! Do you have it by any chance? ................................................................................. Sorry, but I lost my copy of the Parachutes de France Service Bulletin. In essence, it says to remove enough hand tacks that you can lay the cutaway housings straight. Then clean them with a gun-cleaning rod (.22 caliber for Americans or 5.56mm for everyone else) and a gun-cleaning solvent like Hoppes' ... or some fancy de-greasing fluid. Pull cotton gun-cleaning patches through the housings until they emerge clean. Re-stitch the hand-tackings. Inspect. Return to service. This cleaning process is second-nature to gun-owners and old soldiers.
  11. riggerrob
    Harness ring thickness makes a big difference when you are comparing RW-7 and RW-8, but a tiny difference when you are comparing RW-8 and RW-10 harness rings.
  12. riggerrob
    So the key seems to be organizing small bits (helmet, googles. etc.) in sewn-in pockets. It is easy to sew extra pockets into military-surplus gear bags.
  13. riggerrob
    .................................................................................. Back when I rigged in "dusty" Southern California, I test-pulled a bunch of cutaway cables. Many required a 25 pull to extract them. After cleaning, pull forces dropped to less than 5 pounds.
  14. riggerrob
    Parachutes de France issued that Service Bulletin because of too much "cutting oil" remaining after the housings had been formed/rolled.
  15. riggerrob
    ................................................................................. IOW there will be some sweating and cursing for any rigger who tries to stuff a Raven II (about 215 square feet) into a D-sized Talon. Forget about packing a Raven with Dacron suspension lines, but you might get a Spectra-lined Raven in there.
  16. riggerrob
    "Jay" is Jay Stokes, past-president of USPA. Mr. Stokes has done more (500+) jumps in one day than anyone else on the planet. Best thing, Jay Stoke is humble and encouraging to new jumpers.
  17. riggerrob
    I am confused, what is "incident reporting"???? What is "investigation".... that would be a lawsuit? The reasons for lax incident reporting in the USA have as much (if not more) to do with fear of lawsuits and fear of negative effect on marketing, as it does with the "wild west" / "freedom" issues. .................................................................................. Medical mal-practice lawsuits are a huge part of the American economy. That is because the USA is one of the few industrialized nations that does not (until Obama-Care) socialized medicine. Sadly, American legal practices are moving north of the border.
  18. riggerrob
    .................................................................................. Most Twin Otters - on scheduled passenger flights - rarely fly with more than 19 passengers. That is because you need a stewardess if you carry 20 passengers. Something about emergency exits ...
  19. riggerrob
    Every type of recreational flying is more expensive outside the USA. First, consider how many civilian airplanes are flying in South Korea. How many gallons of avgas do South Koreans buy per year? How many airplane spark plugs do South Koreans buy per year? How many spare tires - for Cessnas - do South Koreans buy per year? etc. Then consider the cost of shipping all those consumable items - from the USA to South Korea - the cost of warehousing them, etc.
  20. riggerrob
    .................................................................................. I would have to look in an old Talon manual or an old logbook. Have you looked in the old Talon/Telesis 1 manual?
  21. riggerrob
    First guess: mail it back to the Talon factory (aka. Rigging Innovations in Eloy, Arizona). Second guess: mail it to a Master Rigger who used to work for R.I. (like me).
  22. riggerrob
    "... At Perris years ago I was the only first aid trained person at the DZ. A friend hooked it in on a new downsized canopy. He was bleeding to death from open bi lateral femur fractures. His teammates, all good friends of mine, stayed very calm and followed instructions, applying pressure to stop the bleeding ..." ........................................................................................... Which is why it may be best to leave the harness on the wounded. Leaving the leg straps snug may also help control shock ... a call best made by trained emergency medical personnel.
  23. riggerrob
    The February 2014 issue of KITPLANES Magazine has an excellent article on how to build your own oxygen system.
  24. riggerrob
    We used cutters in several configurations during testing. And we would always use 2 for the redundant factor. In the 20 years I was involved in testing I can't remember seeing one fail. They were similar to the ones used on AAD’s but were initiated by a timer instead of electrical pulse. http://i397.photobucket.com/albums/pp55/mjosparky/Testing/Cutters.jpg As for putting 2 cutters on an AAD….that is an interesting proposition. But it sure would open a can of worms. Sparky .................................................................................... How about taking a two-pin Cypres or Vigil (out of a Strong or Racer Tandem), then installing one cutter in the pack tray (of a single-pin reserve container) and the second cutter on top of the pilot-chute? ... or is that starting to sound paranoid???? Hah! Har! Har!
  25. riggerrob
    You are looking for a canopy with a large margin of error in the flare. Starting with a 9-cell will help. Silhouette, Pulse, etc. are all designed for that market niche.