synthetic stay in roller furler

[Breaking Waves]

Originally Posted by fourlyons

in theory I suppose it should work.

yes, in theory.

In practice, I would think you would really want to pull test a couple to see what the actual working strength is. I could imagine it being near full strength or only 20% of full strength and still looking/feeling 'good'.

[Jim Cate]

Originally Posted by Breaking Waves

yes, in theory.

In practice, I would think you would really want to pull test a couple to see what the actual working strength is. I could imagine it being near full strength or only 20% of full strength and still looking/feeling 'good'.

I'm having a hard time imagining where this "shim" goes relative to the internal cone in the fitting and how one gets the required crush of the split cone onto the core wires AND the required crush between the outer wires and the internal surfaces of the fitting.

I would for damn sure want a test or two before trusting it to hold up my rig.

Jim

[Breaking Waves]

Originally Posted by Jim Cate

I'm having a hard time imagining where this "shim" goes relative to the internal cone in the fitting

well I certainly don't know what exactly he has done, but I could imagine a crushable sleave either inside a 5/16" cone or outside the whole wire with 1/4" cone. I would guess (but that is all it would be) that the latter would be better if well done.

I would for damn sure want a test or two before trusting it to hold up my rig.

yes.

I will say that these compression fitting can be surprisingly resistant to operator error. I saw a rig with norsemans where the cones were all improperly installed, not pushed on the wire far enough. They held together for 30,000 miles and a rigger only really discovered it 'by accident'.

But ofc you could never 'count on that' and would either want to do them exactly per spec, or in OP's case test them.

..........

[seandepagnier]

Originally Posted by Jim Cate

I'm having a hard time imagining where this "shim" goes relative to the internal cone in the fitting and how one gets the required crush of the split cone onto the core wires AND the required crush between the outer wires and the internal surfaces of the fitting.

I would for damn sure want a test or two before trusting it to hold up my rig.

Jim

I took a 1/4" stalok and turned it using a metal lathe at exactly the same angle and ended up with a conical shim that fits in the 5/16" stalok

[Jim Cate]

^^^

I must be kinda obtuse, but I don't understand that description. Is a photo possible? Especially one showing a cone properly installed on the 1/4 inch wire.

I hate to be so lacking in understanding, but this is important stuff. I've used Sta-Loc, Norseman and Sea Rig terminals for many years and thought I understood the way they gripped the wire. Connecting that with your description of your shim isn't working for me yet.

Jim

[Breaking Waves]

Originally Posted by Jim Cate

Is a photo possible?

Just trying to help - this is what I read he has done (his machined sleeve in the red area):




I feel your pain on this. Is not a place where most would take this sort of jerry-rig risk. But each of us gets to make his own decisions and risk level. It might be 100%, and it might be 20% - I personally would want to test it before going to sea, but I know other people have different comfort levels.

As with the Dyneema discussions, I have learned you can only lead people to the water and they get to choose whether they drink or not.

[Kudu]

The big question is- do you also have the full set of furler components, top swivel, track, etc. Without the right gear it could well be a pain in the butt.


I have just sorted my track hoisting friction problems, only to find more problems in the drum. Thinking wistfully about the good old simple hank system with a pull down...

[seandepagnier]

Originally Posted by Breaking Waves

Just trying to help - this is what I read he has done (his machined sleeve in the red area):

Attachment 252063

Thanks,

Yes this exactly it, and all it is. A conical sleeve, and it came out with perfect fit.

It is for a solent stay, there is another forestay ahead of it for hank on lighter air reaching sail.