Prusik Math?

[justsomedude]

Any good rules of thumb for how much cord you use for tying Prusiks?
I am making some beefy 9mm prusiks to try on 11mm assault line (looking for something that doesn't roll).

I used 48" to tie a double fisherman's knot with 2" tails and get a 3 wrap prusik with a decent sized loop to connect to.

I know it will be different for different sizes of cord.

 

[justsomedude]

After being stretched out....
I’m pretty sure it’s Bluewater 9mm accessory cord but it might have been Sterling. The 11mm is definitely Bluewater Assault

 

[sb220]

looks like perfect prusik to me.

May be easier to tie a loose over hand, work out your prusik length and then figure out what you have to add to the overhand for the dbl fisherman....shouldn't be but another foot ya think?

 

[IkemanTX]

Man that looks good.
I can’t stand a prussic though. Got some Ropeman1’s and will never look back! I know, I should back it up, but I live dangerously.


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[lpv77]

I usually just experiment before I cut it to length.

 

[justsomedude]

I have THREE Ropeman 1 now....I wanted a couple of prusik tethers for some of these alternate climbing methods where I don't need the adjustability and I can keep my Ropeman set up for SRT.

I'll have to actually hunt with this to see if I like it, but the stiff Bluewater Assault 11mm with the 9mm Prusik seems like it doesn't get stuck. I might try tying one prusik with Sterling HTP 9mm and see how it does. It is stiffer and slicker than my 9mm accessory cord.