Lazy jack line vibrating on mast

[Allan Frey]

The lazy jack lines lead to the upper part of the mast and a block on each side turns the port and starboard lines and leads each down the outside of the mast to a cleat on each side of the mast, located at head height.

In some strong wind conditions, the lines noisily vibrate against the mast. Is there a way to prevent this vibration? I searched the site and have not seen the problem discussed. The means that I have tried do not work.

Thanks, Allan

 

[capta]

Why not put a couple of shroud cleats on the upper shrouds somewhere convenient and when not sailing tie the lazyjack lines off to those?

 

[justsomeguy]

In some strong wind conditions, the lines noisily vibrate against the mast. Is there a way to prevent this vibration? I searched the site and have not seen the problem discussed.

A shot in the dark here; it's a possible "von Karman effect". Have you seen how the von Karman effect is defeated on automotive antennae by the spiral wrapping?
I wonder if there's a similar remedy for your problem?

 

[All U Get]

Thread the lines through a swim noodle. I did that with a line that slapped the mast in heavy winds. You could tie the lines on the boom away from the mast.

All U Get

 

[Padrone]

Just cross over the lines as they come down, i.e. secure the Starboard on the Port side and vice versa, this will keep tension on both by crossing over/around the mast.

 

[DougM]

I have just used a short piece ,less than a foot, of stiff hose notched at each end to accept the lines and used it as a spreader after the lines were cleated. The tension on the jack lines holds the hose in place. Problem solved.

 

[rardiH36]

Get creative with shock cords?

 

[Gunni]

Move your lazy jack turning blocks out on the spreaders a bit (away from the mast). This will eliminate the slap AND it will open up the throat on your lazy jacks and make your hoists and drops easier.

 

[markwbird]

Use a bungee to pull them tight laterally to the shrouds. Get them away from the mast and holds them taught.

 

[Allan Frey]

Thanks all, for the suggestions. I had tried all except for Padrone's and Gunni's. In the Spring, I'll try Padrone's and I'll talk to the sailmaker about making the changes that Gunni suggested. I'll report back in the Spring after trying them.

Allan

 

[WayneH]

I use Padrone's method on my boat. It works very well. I usually cross the lazy jack lines and then put on the sail cover which holds the lines a bit. Even without the sail cover, if I cross them twice they stay quiet.

 

[Justin_NSA]

Thanks all, for the suggestions. I had tried all except for Padrone's and Gunni's. In the Spring, I'll try Padrone's and I'll talk to the sailmaker about making the changes that Gunni suggested. I'll report back in the Spring after trying them.

Allan

Both would work, but I like Gunni's advice because it does more to help with the common problem of getting hung up on the battens. Why would you need to talk to a sailmaker to run lines thru blocks on the spreaders?

I have the Dutchman system now. No slapping and no snags.