Date: Wed, 17 Mar 1993 20:01:04 GMT
From: bobm@anasazi.com (Bob Maccione)
Message-ID: <1993Mar17.200104.10082@anasazi.com>
Organization: Anasazi, Inc.  Phoenix, Arizona USA
Subject: Knots


Opps, I kinda crossed lines with another kite and as the instructions said
my stunt kite line ( one of them ) snapped.  In attempting to repair the
break I've had a problem coming up with a knot that doesn't slip.  Any
suggestions?


thanks,
bob maccione


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Date: 18 Mar 93 13:38:49 GMT
From: danr@crash.cts.com (Dan Rubesh)
Message-ID: <1993Mar18.053849.16496@crash>
Organization: CTS Network Services (crash, ctsnet), El Cajon, CA
Subject: Re: Knots

>You write:

>Opps, I kinda crossed lines with another kite and as the instructions said
>my stunt kite line ( one of them ) snapped.  In attempting to repair the
>break I've had a problem coming up with a knot that doesn't slip.  Any
>suggestions?


>thanks,
>bob maccione


I'm unclear as to what type of lines you're using, but if it's Spectra
there's no knot that I've found as yet that will successfully join 2
pieces of Spectra without slipping. Probably your best bet would be
to cut the other line to the same length and make a short set of whats
left. The type of line, what length it was to start, and about where 
it broke would be helpful information..


Good Winds and Tight Lines!


Dan Rubesh                                           Wind Wizard, Purveyor of
UUCP: {ucsd, nosc}!crash!danr       GO               Stunt Kites & Accessories 
ARPA: crash!danr@nosc.mil          FLY A             P.O. Box 5747    
INET: danr@crash.cts.com           KITE!             Ventura, CA  93005
                                                     (805) 859-5654

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Date: Thu, 18 Mar 1993 17:25:42 GMT
From: sasaki@netop3.harvard.edu (Marty Sasaki)
Message-ID: <1993Mar18.172542.25710@das.harvard.edu>
Organization: Harvard University
Subject: Re: Knots


In article <1993Mar17.200104.10082@anasazi.com>, bobm@anasazi.com (Bob Maccione) writes:
>Opps, I kinda crossed lines with another kite and as the instructions said
>my stunt kite line ( one of them ) snapped.  In attempting to repair the
>break I've had a problem coming up with a knot that doesn't slip.  Any
>suggestions?

If your flying line is Kevlar, the only way of rejoining without
serious loss of strength is to splice the pieces together.

Dacron line can be tied together using a blood knot, or a barrel knot.

Spectra is tough to tie because it is slick. You might try a blood
knot or a double uni-knot. The uni-knot is a fishing knot.

A good book on fishing knots is "Practical Fishing Knots" by Lefty
Kreh and Mark Sosin. Sorry, I don't remember the publisher...
--
Marty Sasaki            Harvard University           Sasaki Kite Fabrications
sasaki@noc.harvard.edu  Network Operations Division  26 Green Street
617-496-4320            10 Ware Street               Jamaica Plain, MA 02130
                        Cambridge, MA 02138-4002     phone/fax: 617-522-8546


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Date: 18 Mar 93 21:26:00 GMT
From: dadams@dstrike.demon.co.uk (David Adams)
Message-ID: <732489960snz@dstrike.demon.co.uk>
Organization: Data Strike Computers
Subject: Re: Knots

In article <1993Mar17.200104.10082@anasazi.com> bobm@anasazi.com writes:

>
>Opps, I kinda crossed lines with another kite and as the instructions said
>my stunt kite line ( one of them ) snapped.  In attempting to repair the
>break I've had a problem coming up with a knot that doesn't slip.  Any
>suggestions?
>
Sleeve the line with a thicked braid, it is a fiddly job but eased if
you have a tool to do it, or a 12inch piece of fuse wire which you can
stuff down the sleeve and pull the line through with - then the knot
won't slip.  Or were you asking for a knot that won't slip, knowing about
and not wanting to, sleeve the line?
-- 
David Adams


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Date: 18 Mar 1993 22:55:01 GMT
From: jeffy@syrinx.umd.edu (Jeffrey C. Burka)
Message-ID: <1oauk5$6ko@umd5.umd.edu>
Organization: University of Maryland at College Park
Subject: Re: Knots

In article <1993Mar18.053849.16496@crash> danr@crash.cts.com (Dan Rubesh) writes:

>I'm unclear as to what type of lines you're using, but if it's Spectra
>there's no knot that I've found as yet that will successfully join 2
>pieces of Spectra without slipping. Probably your best bet would be
>to cut the other line to the same length and make a short set of whats
>left. The type of line, what length it was to start, and about where 
>it broke would be helpful information..

Marty has already suggested splicing if you're using kevlar.  I would
suggest splicing for spectra, though it's almost impossible with lines
< 150#.

Splicing is a rather nifty trick that takes advantage of the fact that
your lines have a hollow braid.  It's done with a tool that looks like a 
miniature latch hook, usually referred to as a 'fid'.  Short ones are
fairly common (I believe you can find them at sewing stores).  High Fly
also used to sell them, and you might be able to find one at another
kite store.  Premier Kites has just started making sleevers and fids
out of surgical steel, about 1' long,  These are probably the best such
tools currently on the market.  They blow away any other sleever/splicer
you've used.

In any event, the basic technique is:  insert the fid in through the side
of one piece of line an inch or two from the end, and guide the end of it out
through the cut end of line I.  Use the fid to pull the end of line II through
the core of I and out through the side.  At this point, the end of 
one cut line disappears into the center of the other cut line, and then
exits through the side.  Now reverse the procedure--insert the fid into
the side of line II (at a spot an inch or so before it enters line I, 
and then bring the fid _back_ out the side, right at the spot where II enters
I.  Use the fid to pull the loose end of I into the core of II and then
back out the side.  Smooth out the splice and then trim the loose ends
of line where the exit from the sides.  And that's it!  The beauty of
this splice is that the harder your kite is pulling, the tighter the 
braid becomes, and the tighter the spliced section grips itself.  I've
got a set of 150# spectra that I spliced just under 3 years ago; I've
flown a Tracer in 20mph winds on it, with nary a problem.  And as you
might expect, the splice is very smooth once the loose ends are trimmed,
so you don't have to worry much about your lines sliding through each other
when twisted.

As should be obvious, this is almost impossible to do with smaller diameter
lines simply because you can't get the fid to slide through the core.
Particularly if the line is already a bit old and stretched (with a tightened
braid).

Jeff

-- 
|Jeffrey C. Burka        | "Fairies are the perfect people to do this        |
|(suffering Bad Grammar) |  sort of work.  Biologically, their upper         |
|jeffy@syrinx.umd.edu    |  bodies are strong enough to wield a pickaxe...." |

