dumstuntzz

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Jump Profile

  • Home DZ
    ***
  • Number of Jumps
    1500
  • Years in Sport
    35

Ratings and Rigging

  • Rigging Back
    Senior Rigger
  • Rigging Chest
    Senior Rigger
  1. dumstuntzz

    Do you charge additional for someone to watch?

    no but i charge them double if they help!
  2. dumstuntzz

    Bias constructed canopies

    if you made a rib bias constructed, it would have to be made out of 2 or more pices of fabric. a bolt of fabric is only something like 60 -65 '' wide. take a rib that is 10 feet long and then lay it across the fabric on the bias and you will see wahat i mean. early strong tandem mains actually were (are) bias constructed ribs.
  3. dumstuntzz

    Bias constructed canopies

    thats because para flite invented it Elek Puskas was the patent holder.
  4. dumstuntzz

    DB Cooper

    the nb6/nb8 was a pilot emergency parachute,intended only for emergency escape from an aircraft in distress .there were no d rings to attach a reserve because it(the nb6/nb8) WAS a reserve so to speak."Sport Jumpers " as you put it , are making intentional jumps from aircraft and use a main parachute AND a reserve which,would require a set of d rings on the front of the harness to attach a chest reserve(Unless you are using a piggy back which is a rig specifically made for sport jumping. on a piggy back(or tandem as they used to be called)the main and reserve are both on the back.) the chest packs were equally useless as they did not have their own harness. personally if cooper was jumper it would make more sense to me for him to have used the sport main because it had" d " rings on the harness.
  5. dumstuntzz

    DB Cooper

    "if the main fails he's gotta cutaway".... ummm the nb6/nb8 harness container does NOT have canopy releases, so not an option ..
  6. dumstuntzz

    Scary stories from the old days?

    Joe Smith,theres a name i havent heard in eons.
  7. dumstuntzz

    GQ Security

    i understand there was a directive from GQ security years and years ago that basically said all their products 20 years and older were to be taken out of service,or something to that effect. can someone post it for me . no its not anything to do with the acid mesh debacle.
  8. dumstuntzz

    Handsome Dave Dewolf

    I remember Dave very well. back in 1963 or 64 he landed on my dads property(adjacent to the dz) and broke his ankle. Dad was so upset,because he thought he was gonna be sued by one of them crazy skydivers.get well Dave!
  9. dumstuntzz

    mk 2000

    the military version had a microchip in it so ,it actually was a "smart' aad.there were many problems w/the chips right from the beginning,.
  10. dumstuntzz

    DB Cooper

    interesting post. you also bring up a point i hadnt thought of "suppose he got both chutes out?" that would drastically affet his drift and throw his probable landing zone off.
  11. dumstuntzz

    DB Cooper

    it is true. any pioneer 3 or 4 pin sport container i have seen has that marking on the bottom flap.it always struck me as odd because the markings were not required per se, but i guess pioneer wanted to cover their butts. if any of you old timers have seen a pioneer 28' LoPo main from the 60's, you would also note that pioneer marked those as TSO C23b.odd for a main parachute,since it wasnt required.(never saw it on a para-commander that i can recall tho)
  12. dumstuntzz

    DB Cooper

    Gas was cheap back then and you could drive to seattle and back for less than $18.how far is to seattle? gas back then was about $.29 a gallon or thereabouts
  13. dumstuntzz

    DB Cooper

    maybe he chose the nb6 over the pioneer sport rig because the pioneer rig would have been stamped(on the botton flap in inch and a half red letters) LOW SPEED PARACHUTE LIMITED TO USE IN AIRCRAFT UNDER 150 MPH
  14. dumstuntzz

    DB Cooper

    i concur. i do not believe what cossey says about this chute.i do believe that councilman 24 is totally correct.
  15. dumstuntzz

    DB Cooper

    interesting. if cossey is saying the canopy that was found is silk he would most likely be mistaken. parachutes have been made from nylon since WWII(the japanese cut off the silk supply).source for this information is poynter's parachute manual ,which for you non jumpers, is the parachute riggers bible.from personal experience(40+ years)i have not seen any canopy made after 1943 made of silk.and it is not fathomable that the military would have gone back to silk which is an inferior fabric for parachutes. maybe cossey is covering up something??