Main sheet twist between the traveller and the boom

[thinwater]

Originally Posted by Searles

Check if the top block has a position lock ,to stop the top block from rotating and twisting the sheet ,commonly done on free rotating blocks ⛵️⚓️

This. It should NEVER have been a swivel block. No reason.


And what Stu said re. flaking.


Those two actions will fix it.

[Benz]

Originally Posted by Boatyarddog

I do not know anyone that sheets in or trims a mail sail with a winch.
A Camcleat is usually the way a main sheet is trimmed on a traveler.
The twist may be rectified with swivel block, at the boom end.

Boatyarddog

It's seen on a lot of boats--I'm about to sail on a Stevens 47 that does, for one.
As do many modern racing boats.
A swivel block will NOT fix the twist--it simply allows it to twist more easily.

[Jamme]

Originally Posted by thinwater

This. It should NEVER have been a swivel block. No reason.


And what Stu said re. flaking.


Those two actions will fix it.

Flaking does not solve the issue for me as I use a winch for my main, so turns are sort of inevitable.

I am happy to use swivel blocks so I can easily detect if the sheet is getting twisted, and untwist it before damage is done. Removing the swivel does not remove the twists from getting created in the rope.

[Bowdrie]

You don't need to fiddle and fuss with recalcitrant lines and blocks.
Change the sheet to single braid/plaited line and be happy.

[Sailmonkey]

Originally Posted by Boatyarddog

I do not know anyone that sheets in or trims a mail sail with a winch.

A Camcleat is usually the way a main sheet is trimmed on a traveler.

The twist may be rectified with swivel block, at the boom end.



Boatyarddog

That’s a 2:1 sheet……it goes to a winch.

[capn_billl]

I have the same problem with line twist.

Apparently the winch twists the line.

I dump the sheets, and shake out the twists before use, and periodically.

Then flake back into line bag manually removing any remaining twist.

Sometimes it takes a couple passes to get all the pigtails out.

[robbjd]

Wouldn't a swivel at the boom block solve the twist issue.

[StuM]

Originally Posted by robbjd

Wouldn't a swivel at the boom block solve the twist issue.

No

If you read all of the previous posts, you'll see several people suggesting a swivel and several others suggesting locking the block.
Neither is a solution to twists in the line resulting from either turns around a winch or looping rather than flaking the working end