Riggers - how do you make reserve closing loops

[skydiverek 63]

OK, so you have that 50-meter of Cypres loop cord, you take it, and then...? I am loking for a detailed "by-the-book" procedure/answer with all the steps.

[kingbunky 3]

i generally figure out how long i want the loop, double it and add about 6 inches.

fingertrap the line so that you end up with a loop 3/8 - 1/2 an inch, with the rest trapped inside. put a tool of some sort through the loop, wrap the other end around something (i use metal fids), brace one end on a sturdy bench/desk and yank the whole thing tight a few times to stretch it out. if you've done it right, you'll be able to hold one end of the loop with the other end supporting itself straight in the air.

measure the length you want and make a mark. back up 5/8 of an inch (away from the loop) and make another mark. tie the top-secret riggers knot at the second mark, stretch it out again, then back that knot up with a second knot.

thread it through the cypres washer, check to see that the first mark is now flush with the top surface of the washer, and yer done.

"Hang on a sec, the young'uns are throwin' beer cans at a golf cart."
MB4252 TDS699
killing threads since 2001

[councilman24 37]

Here's the book.

http://www.cypres.cc/index.php?option=com_remository&Itemid=89&func=startdown&id=22&lang=en

What more do you need?


Okay, a couple of steps left out.

I cut an appropriate length of cypres cord Usually about 2'. I fold it in half and crease the bend so I have a reference. I use a piano wire finger trapping tool to finger trap one end in the other. In one open end of the weave, out the bend, free end in the loop and pull through leaving the appropriate size loop. Doing this means that the inner end comes out of the outter end by an inch or two. Pull back the outter layer and cut inner with scissors. Pull the outter back over the inner to make it easier to thread.

Thread through washer per above. Prestretch with packing hook and hand. Mark length with Stadtler Lumicolor pen at the same length as MY mark on the loop I'm replacing, which is about 1" above the washer. Using my proprietary color. Pull loop through washer to mark. Tie the knot in above tight to the back of the washer. Stretch loop again. Compare to old one, should be/usually a little shorter - more stretch to come. Coat end of loop per instructions above with silicon using little felt pad handed out several symposiums ago. Trim end to 3 inches or so from knot.

There are different ways. Marking the length, pulling loop through washer, tying knot and pulling back for one. But I've gotten used to mine, it works, gives me reproducible results. DeWolff has a way of using seal thread to tighten the knot.

If not my loop I'm replacing I estimate stretch and tightening of knot from experience and try one. Adjust as necessary.

Please send the $50 tuition for the very valuable rigger instruction through paypal.

Jeez, I gotta stop giving away my secrets.

edit to add... See the post above me is the backward non book method that is probably easier.... But I'll stick to mine.

I'm old for my age.
Terry Urban
D-8631
FAA DPRE

[likestojump 3]

I make a few longer than needed ones at a time (single pin) and hang them for a night with some weight. Essentially I end up with a few pre-stretched ones.

[kingbunky 3]

yup, my method is not exactly standard, but the end result is the same. i left out the silicone lube bit, but i do use it.

ejumacated by handsome dave dewolf, class of '09

"Hang on a sec, the young'uns are throwin' beer cans at a golf cart."
MB4252 TDS699
killing threads since 2001

[councilman24 37]

Sometimes I'm GLAD I never took Dave's course.

Of course I did get my master from him.

By secret goal, don't tell my wife, is to have a house like his. Just as full of 'stuff'.

I'm old for my age.
Terry Urban
D-8631
FAA DPRE