tistouta 0 #1 September 11, 2011 Hi all, I'm preparing 2 tubes, one for HU, one for HD. The HU one is pretty straightforward, but I'm struggling with the foot attachment of the HD one. I heard it should be done as a skysurf foot fixation, but I don't have a detailed idea of how it designed. Onyone with more experience or information? Quote Share this post Link to post Share on other sites
Ronaldo 0 #2 September 11, 2011 I made 2 tubes for HU. If I was going HD I would try to build something adapting an old riser + cutaway handle.Engineering Law #5: The most vital dimension on any plan drawing stands the most chance of being omitted Quote Share this post Link to post Share on other sites
SimonBones 1 #3 September 13, 2011 Swivel clip on the end of an old grounded riser. The clip makes it interchangeable from leg mount to hand hold. My leg mount has two attachment clips, one for above the ankle, one for below the knee. These are re-sizable with velcro. Good luck! -Simon108 way head down world record!!! http://www.simonbones.com Hit me up on Facebook Quote Share this post Link to post Share on other sites
tistouta 0 #4 September 13, 2011 Exactly what I was looking for! Any pics while flying? With this fixation system, considering the amount of drag coming from the tube, the whole fixation never slipped away? Quote Share this post Link to post Share on other sites
SimonBones 1 #5 September 13, 2011 Never slips away because your upper ankle is smaller than your foot and you can make both straps pretty tight. This design puts the cutaway just below the knee, but I have seen others that put the cutaway much higher with a ripcord system similar to old strong tandem rigs that you can clip on.108 way head down world record!!! http://www.simonbones.com Hit me up on Facebook Quote Share this post Link to post Share on other sites
excel485 0 #6 September 15, 2011 Hey thats me flying that tube! Quote Share this post Link to post Share on other sites
tistouta 0 #7 September 20, 2011 Thank you guys for your help. Right now I'm looking for old risers to prepare mine.Just another question: what is the flying sequence? - HD exit, and tube deploys right from the start, or is there any way no to have it deployed as soon as you exit? - For the opening sequence, no difference from a normal HD jump? Thx! Quote Share this post Link to post Share on other sites
SimonBones 1 #8 September 20, 2011 On the exit, you want to make sure that the fabric gets deployed in a proper sequence so that it does not end up inside the tube. There are various ways of achieving this. Some people roll the tube and rubber band it off to reef its deployment, some do some inside out rolling, and some fold. I just keep the fabric bundled up in one hand and the base ring in the other. I toss the fabric first before releasing the base ring to make sure they're clear of each other and I'll get proper inflation. On a tailgate exit, I have seen people toss the fabric while standing in the door so that it is already trailing before jumping. It won't be enough force to pull you out. As for deployment, remember that an advantage to leg-mounting is that if your leg is extended it keeps the tube further away from your body. Also remember that extending your leg can pitch your body head low and offset those gains. What I do is flatten out like a board so I can extend my leg as far as I can while also stretching out my arm over head to keep my pitch flat. In this way I have never had any conflict with the tube and an opening canopy. But I have had a few with hand held tubes.108 way head down world record!!! http://www.simonbones.com Hit me up on Facebook Quote Share this post Link to post Share on other sites
