Broken jib sheet questions

[Dockhead]

Originally Posted by poiu

Yes, I think I have that one, but of the previous generation design.

If the rope has a breaking load say at 10 tons and the car has a SWL of 5 tons and the breaking load with a safety factor of two only is 10 tons then it's going to be an interesting game of chicken.

That wouldn't be a "game of chicken"; that would just be a well balanced structural system.

But anyway, remember the loads on the cars are not the same as the sheet loads. Will be more or less depending on the angle of pull.

[Dockhead]

Originally Posted by transmitterdan

I know some do not like polyester rope for sheets but this stuff is really tough and lasts "forever" in the sun. It is easy on the hands too. But not very "high tech" thus its low price.

shop.mariner-sails.com/Intrepid-8-Strand-Plait-INTREPID-38.htm

I love octoplait, which is lovely in your hands, doesn't twist, coils nicely, etc. I use it for all my docklines, snubbers, and many other things, in both nylon and polyester.

But it is a stretchier construction than either three stand or multistrand braid (one reason why it's so good for docklines and snubbers). This particular rope in 16mm has only 4 tons breaking strength. Would be great in many applications, but doesn't look like a good choice for sheets, IMHO.

[transmitterdan]

Dockhead,

It comes in other sizes. Sheesh...

[Dockhead]

Originally Posted by transmitterdan

Dockhead,

It comes in other sizes. Sheesh...

?? I don't understand. What do you mean?

[transmitterdan]

Originally Posted by Dockhead

?? I don't understand. What do you mean?

My bad. I thought you were referring to the size in the link I posted (my mobile phone is too small). My information is that 16mm (5/8") has 9,000 pounds breaking strength. Can your jib winches really put 4.5K pounds load onto a sheet?

These ropes are not stretchy like the nylon 8-braid (octoplait) sold for anchor rode. It is polyester (Dacron) line and much less stretchy than octoplait.