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Re: [TowerTalk] Need a Knot Expert

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Need a Knot Expert
From: Gedas <w8bya@mchsi.com>
Date: Wed, 27 Nov 2019 10:56:34 -0500
List-post: <mailto:towertalk@contesting.com>
Hi Jim. Yes I think you understand what I am after. To me one or two loops would be fine. Two might even be better as it may be stronger when the wire antenna end that will be attached to that loop exerts a strong tension of around 30 pounds or so.

Dave and others have provided some additional clarifications for me which I think will do what I need so big thanks to all of you.

The rope BTW is just some inexpensive Black tightly woven Dacron braid over what looks like linear strands of some other plastic rope. My goal was to get a long continuous length that would hold up against UV and rain etc and be able to survive 50-75 pounds of pull which this 3/16" should easily do.

If you do have something in mind Jim I would be interested in hearing about it. I will be happy to post a couple pictures of some close-ups of the knot as I practice inside the house in the event it may help others in the future.


Gedas, W8BYA

Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.

On 11/27/2019 10:44 AM, jimlux wrote:
On 11/27/19 7:24 AM, Gedas wrote:
Thank you Jim, Dave, Charlie, and Charles. Looks like a great site !  A number of people have suggested a Bowline but when I did a search on that site it shows at least 6 of them hi-hi......From what I am seeing the bowline is a way to make a loop at the end of a rope....I need to tie two pieces of rope together AND end up with a loop (or two if it has to be).

The knot/loop will NOT be passing thru either pulley. The tied ends and loop will only be able to go up or down the tower between the two pulleys.

Gedas, W8BYA

Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.

On 11/27/2019 9:49 AM, Jim Miller wrote:
animatedknots.com <http://animatedknots.com>


jim ab3cv



Bowline on a bight is the way to make a loop in the middle of a rope.
Or a figure 8 on a doubled rope.

I would look at some variant of the figure-8 knot - Climbers use these a lot, since they're easy to tie (in the dark, and by feel), they don't slip, and they can be untied after being loaded.

A double carrick bend is a more traditional knot to join two lines, but I don't know how you could put a loop in it.

A grapevine knot - basically a pair of overhand knots, where one line passes through the loop of the overhand knot in the other, then you pull them together. This is usually done with an extra loop around the "other line" or with two half hitches around the "other rope"

Does the loop have to  be symmetric with the knot? Does it have to be a "single strand" or can it be doubled?



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