Jump Anchor Lines

[MI3Eventer]

What are people using for jump anchor lines? We have cranks with rope going through pulles that attach to screw in anchors. Looking to get something a bit more secure than the rope that we are using. Any luck using steel cables?

[bojans]

Our situation may be a bit different in that we have large anchors in 20'-40' of water. We have used the same 1/2" rope for the last 15+ years. This rope never comes out of the water and is sub-buoyed for the winter. The connection from these lines to the jump is made with 25' of 3/8 poly rope as a sacrificial section that gets replaced every year. We have yet to move an anchor and have only had the jump break free once. (knock on wood)

[MISkier]

At Tivoli, we've used double braided rope. It seems to be more break resistant. I'm sure it's more expensive.

[3mustskiteer]

I've had great success with stainless cable from the anchor to the sub buoys & then 1/2" rock climbing rope from there to the ratchets/cranks.

[paul]

We use 20 feet of 1/4 stainless cable from the winches on the jump to tires. From the tires to the anchors we use 3/4 poly rope - 150’ long. Our anchors are 6’x6’x1’ concrete and we are in 25-30’ of water and our jump gets exposed to high winds. The tires act as shock absorbers.

[BraceMaker]

@MI3Eventer at a certain diameter galvanized cable will basically last a lifetime. Its probably around a 3/8 or 1/2 galvinized will never fatigue badly enough to break. What you probably want to do if you have a winch on shore is to use a strap to a cable with some sort of back up cable in case the strap fractures but if you wind a cable on a drum it will fail cable does not like being wrapped up.