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Figure 9 knot
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jae8908


Sep 21, 2011, 8:17 PM
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Figure 9 knot
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Does anyone use a figure 9 knot? I just learned to tie one today. I routinely use a double bowline and figure 8.


uni_jim


Sep 21, 2011, 9:49 PM
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Re: [jae8908] Figure 9 knot [In reply to]
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If you can come up with a reasonably realistic situation where it's use would be superior to a figure eight, please share.


meanandugly


Sep 21, 2011, 10:29 PM
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Re: [jae8908] Figure 9 knot [In reply to]
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Neat knot to know and only usefulness over a fig 8 is its easier to untie after being loaded. But its not as recognizable from a distance...stick to the fig 8 or double bowline and keep that one in the tool box just for fun.


sbaclimber


Sep 22, 2011, 12:11 AM
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Re: [jae8908] Figure 9 knot [In reply to]
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jae8908 wrote:
Does anyone use a figure 9 knot?
I do, but not to tie in with...


meanandugly


Sep 22, 2011, 2:00 AM
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Re: [sbaclimber] Figure 9 knot [In reply to]
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What do you use it for?


sbaclimber


Sep 22, 2011, 2:11 AM
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Re: [meanandugly] Figure 9 knot [In reply to]
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meanandugly wrote:
What do you use it for?
pro


meanandugly


Sep 22, 2011, 2:25 AM
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Re: [sbaclimber] Figure 9 knot [In reply to]
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Hmmmmm, iteresting. I've never used one for pro, 8's and double fisherman's always seem to suffice for me...with the occational overhand and monkey's fist.


sbaclimber


Sep 22, 2011, 2:30 AM
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Re: [meanandugly] Figure 9 knot [In reply to]
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meanandugly wrote:
Hmmmmm, iteresting. I've never used one for pro, 8's and double fisherman's always seem to suffice for me...with the occational overhand and monkey's fist.
It's a bit trickier to tighten down neatly, but it (obviously) has a bit more volume than a fig. 8.
Works pretty well for deep pockets though.


jae8908


Sep 22, 2011, 9:32 AM
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Re: [meanandugly] Figure 9 knot [In reply to]
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So the only downside is that its slightly harder to recognize from a distance? If it is easier to get out than an 8 after loading why don't more people use it? I have an app on i-phone that tells knot efficiency and it says:

Figure 8=75%
Figure 9=70%
Double bowline=67%

The double bowline is eaiser to get out but the 8 is slightly more efficient and is easier to tell if it is tied wrong. Seems to me like a 9 is kind of in between.


Sheldon


Sep 22, 2011, 9:47 AM
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Re: [jae8908] Figure 9 knot [In reply to]
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jae8908 wrote:
So the only downside is that its slightly harder to recognize from a distance? If it is easier to get out than an 8 after loading why don't more people use it? I have an app on i-phone that tells knot efficiency and it says:

Figure 8=75%
Figure 9=70%
Double bowline=67%

The double bowline is eaiser to get out but the 8 is slightly more efficient and is easier to tell if it is tied wrong. Seems to me like a 9 is kind of in between.

Those figures change from one source to the next. My info (can't cite it currently) is 73% for the 8 and 72% for the dbl bowline.

I might have a bit of a muffin top but I've never worried about either know causing my rope to break. Even if it's a flimsy 67%.


puravida9539


Sep 22, 2011, 11:05 AM
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Re: [Sheldon] Figure 9 knot [In reply to]
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If it is a route that I assume I will fall on I will use a figure 9. It is easier to untie and being more difficult to assess at a distance is not really important when it is right at your waist.


MFC


Sep 22, 2011, 12:30 PM
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Re: [jae8908] Figure 9 knot [In reply to]
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I don't use a figure 9 knot as a tie in knot (as already mentioned, a rethreaded figure 9 is a pain to tie and not as easy to visually verify), but I have used it when setting up a top rope anchor.

Using a figure 9 on a bight knot vs. a figure 8 on a bight as the masterpoint knot, makes it much easier to untie at the end of the day after it has been loaded and tightened down all day.

It could also prove helpful when trad climbing.
When setting up a cordalette, sometimes the cordalette is too long. tying a figure 9 on a bight takes up more rope than a figure 8, effectively shortening your cordalette and thus moving your master point to a more optimal position.


(This post was edited by MFC on Sep 22, 2011, 12:34 PM)


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