Helmet Lifter Album by NMERider. Photos by NMERider. 1 - 26 of 26 Total. 697 Visits.
enlarge 493KB, 1280x917 1 01 2016-06-10 (2776)+ Typical gliding mode w/ ~1kg (2.2#) of load relived from pilot's neck. The effect on harness balance is negligible.
enlarge 441KB, 1280x936 2 02 2016-06-08 (1)+ Adjust system to avoid slack and possible snags when pilot is launching. 2-meter length of latex tube makes change in pull as pilot goes prone both smooth and gradual.
enlarge 532KB, 1280x1078 3 2016-06-08 (3) Helmet Pulley During launch run the system is taught and producing about 1LB of lift on the helmet.
enlarge 282KB, 1280x903 4 04-2016-06-10-(3346) Properly adjusted to individual pilots the system allows greater percentage of fully prone flying time with head facing level. Flying performance, endurance, bump-tolerance and pleasure are all markedly enhanced.
enlarge 483KB, 960x1280 5 CAM01918 The helmet bridle system.
enlarge 604KB, 919x1280 6 CAM01927 Helmet bridle and floating pulley.
enlarge 292KB, 1110x1280 7 CAM01941
enlarge 225KB, 1280x960 8 CAM01926 1/16" diameter accessory cord is sewn to soft* Velcro that makes with adhesive-backed Velcro carefully aligned on the helmet shell. *Stiff Velcro will tear along the stitch line. Don't use it.
enlarge 543KB, 1280x953 9 CAM01925 This is where the helmet hangs in space. In flight, more than the weight of the helmet is being supported.
enlarge 545KB, 1107x1280 10 CAM01915
enlarge 423KB, 1440x885 11 CAM01912 Latex tube connection is via 1/8" Pop Rivet bodies with the heads cut off.
enlarge 347KB, 1280x817 12 CAM01922 Latex tube is terminated to a loop of 1/16" utility cord that is draped over the keel in a lark's head hitch. KISS.
enlarge 304KB, 1280x960 13 CAM01923
enlarge 295KB, 1021x1280 14 CAM01916 KISS on the front pulley attachment.
enlarge 434KB, 1280x960 15 CAM01917
enlarge 357KB, 1440x865 16 CAM01921 By using 1/8" aluminum tube sections inside the 1/16" I.D. latex tube the suspension line moves through the pulley without snagging.
enlarge 181KB, 1280x960 17 CAM01920 Hang strap pulley attachment. KISS once again.
enlarge 340KB, 1280x1233 18 CAM01940 These are fantastic pulleys for running the latex tube through. I buy mine from West Marine.
enlarge 190KB, 1280x855 19 CAM01943 this was a 50' roll of 1/16" I.D. x 3/16" O.D. latex tube from Kent Elastomer. Best quality. I paid ~$33 from Spearitco on Amazon.com
enlarge 274KB, 1280x802 20 CAM01942 Part number for latex tube.
enlarge 220KB, 1440x735 21 CAM01944 I use ~77-1/2" of latex tube. You can use more of less depending upon your flying style or application.
enlarge 276KB, 1280x960 22 CAM01939 2, 1/8" x 1/2" aluminum Pop Rivet shafts that have been rounded inside and out. Tip end of cord is carefully melted so it won't pull through under normal tension.
enlarge 248KB, 706x1280 23 CAM01934 Dip latex into isopropol before pressing over rivet shafts.
enlarge 300KB, 1280x1001 24 CAM01936 Insertion process
enlarge 236KB, 1440x895 25 CAM01937 Press slightly farther than needed to cover rivet shafts.
enlarge 217KB, 1440x734 26 CAM01938 Terminated end of latex to 1.5mm accessory cord.
