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winch hook knot
Moderators: toaddog, TWISTY, V8Patrol, Moderators
winch hook knot
Just wondering what knot others have used to tie on there winch hook?
Damien
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Take it to a yacht chandler (boat shop) who specialise in racing yachts. They should be able to do the job professionally. There are different techniques for different lays of ropes and different cores, and to get the best strength out of them you really need to pick the right technique. Mornington Yacht Club or futher down the peninsula, Blairgowrie Yacht Squadron (my old stomping ground), may be able to point you in the right direction...
George Carlin, an American Comedian said; "Think of how stupid the average person is, and realise that half of them are stupider than that".
http://www.fish4fun.com/Joining2Lines.htm6.5 rangie wrote:????uni knot
If it is winch rope and it's not a proper 12 strand plasma you should be careful of using it. It might not be strong enough for your purposes. A 8mm plasma breaks at about 3.5-4tons. About the pulling power of the average winch. Secondly you CANNOT make a knot in plasma, it is too slippery and its highly likely it will come undone plus you lose a tremendous amount of strength in the knot. When the knot slips it causes a lot of heat due to friction and this is the weakpoint in plasma, it cannot deal with heat very well. Splicing can maintain between 90% and 95% of rope strength and is easier to make than a knot anyway.
Most of the ropes used in winching come from Samson so here is a link to their splicing instruction.
http://www.samsonrope.com/site_files/Cl ... Splice.pdf
There are 3 basic winch rope materials, dyneema, technore and vectran. All three these are trade names.Dyneema is a high modulus poly-ethylene, technora is a kevlar hybrid and vectran is a liquid crystal polymer. Dyneema is normally referred to as plasma and ropes like Amsteel Blue are made from this, a Samson rope product. X-line uses Technora. Biggest drawback of plasma vs Tecnora and Vectran is heat resistance. Plasma can't take very high heat so it is not advised to use on low mounts where the brake is inside the drum.
Please don't make a knot in any of these ropes, especially plasma. The rope when under tension slips in the knot and it is the friction that melts the rope which then breaks. Gone is your very nice and expensive rope. You can probaly make a bow-line if you are using a polyester rope, but the polyester isn't close to as strong as the synthetics. A 22mm polyester breaks at 8tons. You probably aren't going to get a lot of rope on a winch if it is 22mm.
Apologies for the long answer if you know all of this.
Most of the ropes used in winching come from Samson so here is a link to their splicing instruction.
http://www.samsonrope.com/site_files/Cl ... Splice.pdf
There are 3 basic winch rope materials, dyneema, technore and vectran. All three these are trade names.Dyneema is a high modulus poly-ethylene, technora is a kevlar hybrid and vectran is a liquid crystal polymer. Dyneema is normally referred to as plasma and ropes like Amsteel Blue are made from this, a Samson rope product. X-line uses Technora. Biggest drawback of plasma vs Tecnora and Vectran is heat resistance. Plasma can't take very high heat so it is not advised to use on low mounts where the brake is inside the drum.
Please don't make a knot in any of these ropes, especially plasma. The rope when under tension slips in the knot and it is the friction that melts the rope which then breaks. Gone is your very nice and expensive rope. You can probaly make a bow-line if you are using a polyester rope, but the polyester isn't close to as strong as the synthetics. A 22mm polyester breaks at 8tons. You probably aren't going to get a lot of rope on a winch if it is 22mm.
Apologies for the long answer if you know all of this.
.
Just want to clarify something with what you said earlier Freakazoid, you're buying very cheap, poor quality rope if it breaks at 3.5-4tons, we sell 8mm rope and its breaking strain is approx 7tons, thats a standard 12 braid Dyneema, so 8mm is fine for the average dude who doesn't do comps, but if you're doing comps 10mm is the minimum standard, it's breaking strain is just under 11 tons.Freakazoid wrote:A 8mm plasma breaks at about 3.5-4tons.
Sorry to jump off track but just wanted to clarify that as most of the better quality 8mm rope would be the same.
Boaties use one of those tear drop shaped metal inserts and the loop wraps around that.uninformed wrote:are you ment to use a metal insurt inside the loop so the hook is not rubbing on the rope?
cheers, serg
But the idea of a loop that pushes through the hook hole and over itself to lock down; makes it easier to take the hook of and throw the rope in the wash
Kind Regards,
Brad
Brad
LuxyBoy wrote:Boaties use one of those tear drop shaped metal inserts called "thimbles" by the way and the loop wraps around that.uninformed wrote:are you ment to use a metal insurt inside the loop so the hook is not rubbing on the rope?
cheers, serg
But the idea of a loop that pushes through the hook hole and over itself to lock down; makes it easier to take the hook of and throw the rope in the wash
George Carlin, an American Comedian said; "Think of how stupid the average person is, and realise that half of them are stupider than that".
http://www.ruftraks.co.uk/quick_splicing.htm
It is a lot simpler than some folks think. You can use just a Biro pen instead of the steel pin.
JF
It is a lot simpler than some folks think. You can use just a Biro pen instead of the steel pin.
JF
I did my Coxwains Certificate and part of it was splicing rope; not overly dificult but i would recommend practicing on some cheap rope first, before trusting quite possibly my life with a splice that i didjames feeney wrote:http://www.ruftraks.co.uk/quick_splicing.htm
It is a lot simpler than some folks think. You can use just a Biro pen instead of the steel pin.
JF
Kind Regards,
Brad
Brad
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